hytos / HYTOS / HYTOS / Shapes / EngineeringLoopItem.py @ d694c9e8
이력 | 보기 | 이력해설 | 다운로드 (64.4 KB)
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# coding: utf-8
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import os.path |
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import copy |
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import sys |
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|
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try:
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from PyQt5.QtCore import Qt, QPointF, QRectF, pyqtSignal, QObject, QT_VERSION_STR, QRect |
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from PyQt5.QtGui import QImage, QPixmap, QPainterPath, QBrush, QPen, QTransform, QFont, QColor |
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from PyQt5.QtWidgets import QGraphicsView, QGraphicsScene, QFileDialog, QGraphicsItem, QAbstractGraphicsShapeItem, \ |
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QGraphicsTextItem, QGraphicsRectItem |
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except ImportError: |
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try:
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from PyQt4.QtCore import Qt, QRectF, pyqtSignal, QRect, QObject, QT_VERSION_STR |
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from PyQt4.QtGui import QGraphicsView, QGraphicsScene, QImage, QPixmap, QPainterPath, QFileDialog, QFont, QColor |
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except ImportError: |
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raise ImportError("ImageViewerQt: Requires PyQt5 or PyQt4.") |
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|
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import math |
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from EngineeringAbstractItem import QEngineeringAbstractItem |
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from AppDocData import * |
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class QEngineeringLoopItem(QEngineeringAbstractItem): |
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""" This is QEngineeringLoopItem class """
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def __init__(self, _items): |
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""" constructor """
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import uuid |
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QEngineeringAbstractItem.__init__(self)
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self._UID = None |
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self._name = None |
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self.items = _items
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self.units = {}
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self.pressures = {}
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self.pressure_drops = {}
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self.density_elevations = {}
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self.extras = {}
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self.total_device_loss = None |
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self.suction_line_friction_loss = None |
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self.discharge_line_friction_loss = None |
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self.line_total_friction_loss = None |
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self.suction_device_loss = None |
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self.discharge_device_loss = None |
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self.total_suction_loss = None |
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self.total_discharge_loss = None |
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self.fill_start = 0 |
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self.fill_end = None |
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def __repr__(self): |
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""" return string represent loop item """
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return '{}'.format(self.items) |
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|
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@property
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def name(self): |
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return self._name |
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@name.setter
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def name(self, value): |
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self._name = value
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def calculate(self): |
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""" calculate Pressure Drop (Static), Pressure @ Pipe end point of stream line """
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from AppDocData import AppDocData |
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try:
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# (0) Units
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self.init_units()
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# (1) 기기들의 del.p, p, el을 넣음
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self.p_eq_input()
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# (3) 계산 시작
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self.discharge_cal()
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if not self.items[1] in self.pressures or not self.pressures[self.items[1]]: |
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self.suction_cal()
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|
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# Hole Calculation
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# cv와 pump가 다 없을때 (Hole Case)
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if self.fill_end - self.fill_start > 3: |
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self.hole_calc(self.fill_start, self.fill_end) |
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self.loss_input()
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self.cv_dp_cal()
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self.hole_recalc(self.fill_start, self.fill_end) |
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else:
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self.loss_input()
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name = str(self.items[self.fill_start + 1])[:3] |
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if name == 'CV_': |
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self.pressure_drops[self.items[self.fill_start + 1]] = self.pressures[ |
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self.items[self.fill_start + 1]] - \ |
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self.pressures[
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self.items[self.fill_start + 2]] |
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elif name == 'R_P' or name == 'L_P' or name == 'V_P' or name == 'R_K' or name == 'L_K': |
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self.pressure_drops[self.items[self.fill_start + 1]] = self.pressures[ |
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self.items[self.fill_start + 2]] - \ |
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self.pressures[
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self.items[self.fill_start + 1]] |
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except Exception as ex: |
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from App import App |
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message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
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sys.exc_info()[-1].tb_lineno)
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App.mainWnd().addMessage.emit(MessageType.Error, message) |
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def init_units(self): |
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try:
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app_doc_data = AppDocData.instance() |
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self.units = [attr[1] for attr in app_doc_data.activeDrawing.attrs if attr[0] == 'Units'][0] |
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except Exception as ex: |
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from App import App |
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message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename, |
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sys.exc_info()[-1].tb_lineno)
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App.mainWnd().addMessage.emit(MessageType.Error, message) |
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def hole_calc(self, hole_start, hole_end): |
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try:
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self.pressures[self.items[hole_end - 2]] = self.pressures[self.items[hole_end - 1]] |
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for i in range(hole_end - 3, hole_start + 2, -3): |
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# (1) density 입력
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self.discharge_den(i)
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# (2) static P를 계산
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self.discharge_static_cal(i)
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# (3) pressure drop 계산
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if self.items[i].data.phase_type == 'Liquid' or self.items[i].data.phase_type == 'Mixed': |
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self.pressure_drops[self.items[i]] = self.items[i].data.pressure_drop_friction |
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res = self.hole_p_cal(i)
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if res == 0: |
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break
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elif self.items[i].data.phase_type == 'Vapor': |
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self.discharge_vapor_factor_length(i)
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res = self.hole_p_cal(i)
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if res == 0: |
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break
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except Exception as ex: |
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from App import App |
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message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename, |
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sys.exc_info()[-1].tb_lineno)
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App.mainWnd().addMessage.emit(MessageType.Error, message) |
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def hole_recalc(self, hole_start, hole_end): |
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try:
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self.pressures[self.items[hole_end - 2]] = self.pressures[self.items[hole_end - 1]] + \ |
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self.pressure_drops[self.items[hole_end - 2]] |
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for i in range(hole_end - 3, hole_start + 2, -3): |
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# (1) density 입력
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self.discharge_den(i)
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# (2) static P를 계산
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self.discharge_static_cal(i)
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# (3) pressure drop 계산
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if self.items[i].data.phase_type == 'Liquid' or self.items[i].data.phase_type == 'Mixed': |
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self.pressure_drops[self.items[i]] = self.items[i].data.pressure_drop_friction |
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res = self.hole_p_cal(i)
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if res == 0: |
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break
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elif self.items[i].phase_type == 'Vapor': |
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self.discharge_vapor_factor_length(i)
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res = self.hole_p_cal(i)
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if res == 0: |
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break
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except Exception as ex: |
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from App import App |
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message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename, |
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sys.exc_info()[-1].tb_lineno)
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App.mainWnd().addMessage.emit(MessageType.Error, message) |
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def get_control_valve_equation(self): |
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app_doc_data = AppDocData.instance() |
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equation = app_doc_data.getConfigs('Control Valve', 'Equation') |
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if len(equation) == 1: |
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return equation[0].value |
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else:
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return 'bd' |
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def cv_dp_cal(self): |
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try:
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acv = 0
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for i in range(2, len(self.items) - 3, 3): |
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if not self.items[i] in self.pressure_drops and str(self.items[i])[:3] == 'CV_': |
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acv = i |
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break
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if acv:
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pf = (self.total_device_loss if self.total_device_loss else 0) + \ |
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(self.line_total_friction_loss if self.line_total_friction_loss else 0) |
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method = self.get_control_valve_equation()
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if method == 'bd': |
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self.bd_cal(pf, acv)
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elif method == 'lummus': |
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pass
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elif method == 'mixed': |
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pass
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elif method == 'aramco': |
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pass
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else:
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pass
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except Exception as ex: |
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from App import App |
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message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename, |
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sys.exc_info()[-1].tb_lineno)
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App.mainWnd().addMessage.emit(MessageType.Error, message) |
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def bd_cal(self, pf, acv): |
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from AppDocData import AppDocData |
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try:
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bdcvdp = [None, None, None] |
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bdcvdp[0] = ((1.1135 * ( |
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(self.extras[self.items[acv]] if self.extras[self.items[acv]] else 0) / 100 + 1)) ** 2 - 1) * pf |
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bdcvdp[1] = pf / 3 |
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pressure_unit = self.units['Pressure'] |
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if pressure_unit == 'kg/cm2': |
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bdcvdp[2] = 0.7 |
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elif pressure_unit == 'psi': |
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bdcvdp[2] = 0.7 / 1.033 * 14.7 |
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elif pressure_unit == 'bar': |
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bdcvdp[2] = 0.7 / 1.033 * 1.013 |
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elif pressure_unit == 'mmHg': |
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bdcvdp[2] = 0.7 / 1.033 * 760 |
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elif pressure_unit == 'kPa': |
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bdcvdp[2] = 0.7 / 1.033 * 101.325 |
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elif pressure_unit == 'MPa': |
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bdcvdp[2] = 0.7 / 1.033 * 0.101325 |
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max_dp = max(bdcvdp[0], bdcvdp[1]) |
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if max_dp < bdcvdp[2]: |
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max_dp = bdcvdp[2]
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self.pressure_drops[self.items[acv]] = max_dp |
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except Exception as ex: |
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from App import App |
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message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename, |
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sys.exc_info()[-1].tb_lineno)
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App.mainWnd().addMessage.emit(MessageType.Error, message) |
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def final_loss_input(self): |
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pass
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def loss_input(self): |
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try:
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hole_start, hole_end = self.fill_start, self.fill_end |
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line_loss = 0
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# 라인(suc)
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for i in range(1, hole_start + 1, 3): |
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line_loss = line_loss + self.pressure_drops[self.items[i]] |
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self.suction_line_friction_loss = line_loss
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line_loss = 0
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for i in range(len(self.items) - 2, hole_start + 2, -3): |
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if i == 3: |
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break
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if self.items[i] in self.pressure_drops and self.pressure_drops[self.items[i]]: |
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line_loss += self.pressure_drops[self.items[i]] |
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self.discharge_line_friction_loss = line_loss
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line_loss = 0
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self.line_total_friction_loss = self.suction_line_friction_loss + self.discharge_line_friction_loss |
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# 기기(suc)
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dev_loss = 0
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for i in range(2, hole_start - 1, 3): |
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name = str(self.items[i])[:3] |
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if name == 'R_P' or name == 'L_P' or name == 'V_P' or name == 'R_K' or name == 'L_K' or name == 'CV_': |
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pass
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else:
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dev_loss += self.pressure_drops[self.items[i]] |
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self.suction_device_loss = dev_loss
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# 기기(dis)
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dev_loss = 0
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for i in range(len(self.items) - 4, hole_start + 3, -3): |
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name = str(self.items[i])[:3] |
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if name == 'R_P' or name == 'L_P' or name == 'V_P' or name == 'R_K' or name == 'L_K' or name == 'CV_': |
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pass
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else:
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dev_loss += self.pressure_drops[self.items[i]] if self.items[i] in self.pressure_drops else 0 |
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self.discharge_device_loss = dev_loss
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self.total_device_loss = self.discharge_device_loss + self.suction_device_loss |
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# 스태틱(suc)
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stat_loss = 0
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for i in range(0, hole_start - 3, 3): |
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stat_loss += self.pressure_drops[self.items[i]] |
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self.total_suction_loss = stat_loss
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# 스태틱(dis)
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stat_loss = 0
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for i in range(len(self.items) - 3, hole_start, -3): |
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stat_loss += self.pressure_drops[self.items[i]] |
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self.total_discharge_loss = stat_loss
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except Exception as ex: |
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from App import App |
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message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename, |
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sys.exc_info()[-1].tb_lineno)
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App.mainWnd().addMessage.emit(MessageType.Error, message) |
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def discharge_cal(self, calc_cnt=1): |
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try:
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if len(self.items) == 3: |
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# 장치 2개와 Line 1개로 구성된 경우
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self.discharge_den(1) # (1) density 입력 |
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self.discharge_static_cal(1) # (2) static P를 계산 |
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# (3) pressure drop 계산
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# liquid 인 경우 stream 시트로부터 del.P를 입력해줌.
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# vapor인 경우 압력강하를 계산해주고 넣어주는 모듈
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if self.items[1].data.phase_type == 'Liquid' or self.items[1].data.phase_type == 'Mixed': |
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self.pressure_drops[self.items[1]] = self.items[1].data.pressure_drop_friction |
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self.discharge_p_cal(1, calc_cnt) |
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|
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elif self.items[1].data.phase_type == 'Vapor': |
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self.discharge_vapor_factor_length(1) |
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self.discharge_p_cal(1, calc_cnt) |
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self.fill_end = 3 |
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else:
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for i in range(len(self.items) - 2, 1, -3): # backward |
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self.discharge_den(i) # (1) density 입력 |
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self.discharge_static_cal(i) # (2) static P를 계산 |
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|
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# (3) pressure drop 계산
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# liquid 인 경우 stream 시트로부터 del.P를 입력해줌.
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# vapor인 경우 압력강하를 계산해주고 넣어주는 모듈
|
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if self.items[i].data.phase_type == 'Liquid' or self.items[i].data.phase_type == 'Mixed': |
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self.pressure_drops[self.items[i]] = self.items[i].data.pressure_drop_friction |
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asd = self.discharge_p_cal(i, calc_cnt)
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if asd == 0: |
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break
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elif self.items[i].data.phase_type == 'Vapor': |
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self.discharge_vapor_factor_length(i)
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asd = self.discharge_p_cal(i, calc_cnt)
|
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if asd == 0: |
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break
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|
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self.fill_end = i
|
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except Exception as ex: |
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from App import App |
| 350 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
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sys.exc_info()[-1].tb_lineno)
|
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App.mainWnd().addMessage.emit(MessageType.Error, message) |
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|
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def discharge_vapor_factor_length(self, i): |
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try:
|
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# '입력된 vapor의 압력과 밀도를 가지고 끊어서 계산하는 factor를 적용했을때 length가 얼마나 나오는지 판별하는 것.
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|
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# pipe dia 가져오기
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ida = self.items[i].data.inside_pipe_size
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pipe_diameter_unit = self.units['Pipe_Diameter'] |
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if pipe_diameter_unit == 'in': |
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ida = ida * 0.0254
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elif pipe_diameter_unit == 'mm': |
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ida = ida / 1000
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|
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# 'mass 가져오기 기준 kg/h
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mass = self.items[i].data.flowrate_mass
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flowrate_mass_unit = self.units['Flowrate_Mass'] |
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if flowrate_mass_unit == 'kg/h': |
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mass = mass |
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elif flowrate_mass_unit == 'g/min': |
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mass = mass * 60 / 1000 |
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elif flowrate_mass_unit == 'lb/h': |
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mass = mass * 0.453592
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elif flowrate_mass_unit == 't/h': |
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mass = mass * 1000
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|
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# 'g 구하기 (kg/m2/s)
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g = mass / 3600 / (3.1415 * ida ** 2 / 4) |
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|
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density2 = self.density_elevations[self.items[i]] |
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# '속도 계산 (m/s)
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velocity = 4 * mass / density2 / 3.1415 / ida ** 2 / 3600 |
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|
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# 'Mach Number 계산
|
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# 'k 가져오기
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k = self.items[i].data.specific_heat_ratio
|
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|
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# temp 가져오기
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temp = self.items[i].data.temperature
|
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# 'temp를 kalvin으로 맞추기
|
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temp_unit = self.units['Temperature'] |
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if temp_unit == '℃': |
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temp = temp + 273.15
|
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elif temp_unit == '℉': |
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temp = (temp - 32) / 1.8 + 273.15 |
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|
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# 'MW 가져오기
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mw = self.items[i].data.molecular_weight
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|
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mach = velocity / ((k * 9.80665 * 847.28 * temp / mw) ** 0.5) |
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|
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# '부피유량 계산
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volume = mass / density2 |
| 405 |
|
| 406 |
# '현재 volume은 m3/h임. 부피유량 단위에 맞춰 뿌려줌
|
| 407 |
flowrate_volume_unit = self.units['Flowrate_Volume'] |
| 408 |
if flowrate_volume_unit == 'm3/h': |
| 409 |
self.items[i].data.flowrate_volume = round(volume, 3) |
| 410 |
elif flowrate_volume_unit == 'l/min': |
| 411 |
self.items[i].data.flowrate_volume = round(volume / 60 * 1000, 3) |
| 412 |
elif flowrate_volume_unit == 'ft3/h': |
| 413 |
self.items[i].data.flowrate_volume = round(volume * 35.3147, 3) |
| 414 |
elif flowrate_volume_unit == 'USgpm': |
| 415 |
self.items[i].data.flowrate_volume = round(volume * 4.40287, 3) |
| 416 |
elif flowrate_volume_unit == 'BPSD': |
| 417 |
self.items[i].data.flowrate_volume = round(volume * 150.955, 3) |
| 418 |
|
| 419 |
# ' viscosity 유닛 변환 (모두 kg/m.s로 바꿀것임)
|
| 420 |
viscosity = self.items[i].data.viscosity
|
| 421 |
viscosity_unit = self.units['Viscosity'] |
| 422 |
if viscosity_unit == 'kg/m.sec': |
| 423 |
viscosity = viscosity |
| 424 |
elif viscosity_unit == 'cP': |
| 425 |
viscosity = viscosity * 0.001
|
| 426 |
elif viscosity_unit == 'kg/m.h': |
| 427 |
viscosity = viscosity / 3600
|
| 428 |
elif viscosity_unit == 'lb/ft.s': |
| 429 |
viscosity = viscosity * 1.48816
|
| 430 |
|
| 431 |
# density case에 따라 re계산
|
| 432 |
density_unit = self.units['Density'] |
| 433 |
if density_unit == 'kg/m3': |
| 434 |
reynolds = ida * velocity * density2 / viscosity |
| 435 |
elif density_unit == 'lb/ft3': |
| 436 |
reynolds = ida * velocity * (density2 * 16.0185) / viscosity
|
| 437 |
|
| 438 |
# roughness를 m로 바꿔줌
|
| 439 |
rough = self.items[i].data.roughness
|
| 440 |
roughness_unit = self.units['Roughness'] |
| 441 |
if roughness_unit == 'm': |
| 442 |
rough = rough |
| 443 |
elif roughness_unit == 'ft': |
| 444 |
rough = rough * 0.3048
|
| 445 |
elif roughness_unit == 'in': |
| 446 |
rough = rough * 0.0254
|
| 447 |
elif roughness_unit == 'mm': |
| 448 |
rough = rough * 0.001
|
| 449 |
|
| 450 |
# ' reynolds수에 따라 Fanning/Chen friction factor 계산
|
| 451 |
if reynolds <= 2100: |
| 452 |
f = 4 * 16 / reynolds |
| 453 |
else:
|
| 454 |
af = math.log(rough / ida / 3.7 + (6.7 / reynolds) ** 0.9) / math.log(10) |
| 455 |
f = (-2 * (math.log(rough / 3.7 / ida - 5.02 / reynolds * af) / math.log(10))) ** (-2) |
| 456 |
|
| 457 |
self.items[i].data.friction_factor = f
|
| 458 |
|
| 459 |
# '속도와 mach 수 입력
|
| 460 |
velocity_unit = self.units['Velocity'] |
| 461 |
if velocity_unit == 'm/s': |
| 462 |
self.items[i].data.velocity = round(velocity, 3) |
| 463 |
elif velocity_unit == 'ft/s': |
| 464 |
self.items[i].data.velocity = round(velocity * 3.28084, 3) |
| 465 |
|
| 466 |
self.items[i].data.reynolds = round(mach, 5) |
| 467 |
|
| 468 |
Ref_baro = self.get_barometric_pressure()
|
| 469 |
press2 = self.pressures[self.items[i + 1]] |
| 470 |
|
| 471 |
# 'pressure를 k.g.a로 맞춤
|
| 472 |
pressure_unit = self.units['Pressure'] |
| 473 |
if pressure_unit == 'kg/cm2': |
| 474 |
press2 = press2 + Ref_baro |
| 475 |
elif pressure_unit == 'psi': |
| 476 |
press2 = press2 / 14.7 * 1.033 + Ref_baro |
| 477 |
elif pressure_unit == 'atm': |
| 478 |
press2 = press2 * 1.033 + Ref_baro
|
| 479 |
elif pressure_unit == 'bar': |
| 480 |
press2 = press2 / 1.013 * 1.033 + Ref_baro |
| 481 |
elif pressure_unit == 'mmHg': |
| 482 |
press2 = press2 / 760 * 1.033 + Ref_baro |
| 483 |
elif pressure_unit == 'kPa': |
| 484 |
press2 = press2 / 101.325 * 1.033 + Ref_baro |
| 485 |
elif pressure_unit == 'MPa': |
| 486 |
press2 = press2 / 0.101325 * 1.033 + Ref_baro |
| 487 |
|
| 488 |
press1est = press2 / 0.95 # HY_Calc_sht.Cells(2, 1) |
| 489 |
|
| 490 |
z = self.items[i].data.compress_factor
|
| 491 |
density1est = press1est * mw / 0.08206 / temp / z / 1.033 |
| 492 |
|
| 493 |
# ' 라인 길이 도출 (m)
|
| 494 |
estlength = (((press1est ** 2 - press2 ** 2) * mw / g ** 2 / 0.08206 / 1.033 ** 2 / temp / z * 101325) - ( |
| 495 |
2 * math.log(density1est / density2))) * ida / f
|
| 496 |
|
| 497 |
# '라인 길이를 유닛에 맞춰서 변환
|
| 498 |
length_unit = self.units['Length'] |
| 499 |
if length_unit == 'm': |
| 500 |
estlength = estlength |
| 501 |
elif length_unit == 'in': |
| 502 |
estlength = estlength * 39.3701
|
| 503 |
elif length_unit == 'ft': |
| 504 |
estlength = estlength * 3.28084
|
| 505 |
elif length_unit == 'yd': |
| 506 |
estlength = estlength * 1.09361
|
| 507 |
elif length_unit == 'mile': |
| 508 |
estlength = estlength * 0.000621371
|
| 509 |
elif length_unit == 'mm': |
| 510 |
estlength = estlength * 1000
|
| 511 |
|
| 512 |
equivalent_length = self.get_equivalent_length(i)
|
| 513 |
if estlength > equivalent_length:
|
| 514 |
# '주어진 길이를 가지고 압력 강하를 계산하는 모듈이 들어가야함 (safe)
|
| 515 |
# ' length 여유 있음. 한번에 isothermal 식으로 계산
|
| 516 |
self.discharge_vap_dp_cal1(i, press2, g, mw, temp, f, z, ida)
|
| 517 |
else:
|
| 518 |
# '끊어서 계산하는 모듈이 들어가야함
|
| 519 |
# 'length 여유 없음. 압력 재계산->밀도 재계산->re, f 재계산->압력 재계산 체계로 가야함
|
| 520 |
self.discharge_vap_dp_cal2(i, press2, g, mw, temp, f, z, ida)
|
| 521 |
|
| 522 |
except Exception as ex: |
| 523 |
from App import App |
| 524 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 525 |
sys.exc_info()[-1].tb_lineno)
|
| 526 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 527 |
|
| 528 |
def discharge_vap_dp_cal1(self, i, press2, g, mw, temp, f, z, ida): |
| 529 |
try:
|
| 530 |
# 끊은 결과 length가 여유가 있음. 그래서 단순 계산하는 모듈
|
| 531 |
length = self.get_equivalent_length(i)
|
| 532 |
|
| 533 |
# length를 m로 변환
|
| 534 |
length_unit = self.units['Length'] |
| 535 |
if length_unit == 'm': |
| 536 |
length = length |
| 537 |
elif length_unit == 'in': |
| 538 |
length = length * 0.0254
|
| 539 |
elif length_unit == 'ft': |
| 540 |
length = length * 0.3048
|
| 541 |
elif length_unit == 'yd': |
| 542 |
length = length * 0.9144
|
| 543 |
elif length_unit == 'mile': |
| 544 |
length = length * 1609.34
|
| 545 |
elif length_unit == 'mm': |
| 546 |
length = length * 0.001
|
| 547 |
|
| 548 |
# Newton's Rule에 따라
|
| 549 |
press1 = self.Vap_Discharge_1(press2, g, mw, temp, f, z, ida, length)
|
| 550 |
pressure_unit = self.units['Pressure'] |
| 551 |
if pressure_unit == 'kg/cm2': |
| 552 |
self.pressure_drops[self.items[i]] = press1 - press2 |
| 553 |
elif pressure_unit == 'psi': |
| 554 |
self.pressure_drops[self.items[i]] = (press1 - press2) / 1.033 * 14.7 |
| 555 |
elif pressure_unit == 'atm': |
| 556 |
self.pressure_drops[self.items[i]] = (press1 - press2) / 1.033 |
| 557 |
elif pressure_unit == 'bar': |
| 558 |
self.pressure_drops[self.items[i]] = (press1 - press2) / 1.033 * 1.033 |
| 559 |
elif pressure_unit == 'mmHg': |
| 560 |
self.pressure_drops[self.items[i]] = (press1 - press2) / 1.033 * 760 |
| 561 |
elif pressure_unit == 'kPa': |
| 562 |
self.pressure_drops[self.items[i]] = (press1 - press2) / 1.033 * 101.325 |
| 563 |
elif pressure_unit == 'MPa': |
| 564 |
self.pressure_drops[self.items[i]] = (press1 - press2) / 10.33 * 0.101325 |
| 565 |
|
| 566 |
self.discharge_p_cal(i)
|
| 567 |
|
| 568 |
except Exception as ex: |
| 569 |
from App import App |
| 570 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 571 |
sys.exc_info()[-1].tb_lineno)
|
| 572 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 573 |
|
| 574 |
def discharge_vap_dp_cal2(self, i, press2, g, mw, temp, f, z, ida): |
| 575 |
try:
|
| 576 |
# ' 끊은 결과 length 여유가 없음, 고로 물성치 (밀도) 를 재계산해주어야 함
|
| 577 |
# ' 모든 물성들은 배열로 작성해야함
|
| 578 |
# ' 좌표 추적/설정
|
| 579 |
self.pressure_drops[self.items[i]] = 0 |
| 580 |
pass
|
| 581 |
except Exception as ex: |
| 582 |
from App import App |
| 583 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 584 |
sys.exc_info()[-1].tb_lineno)
|
| 585 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 586 |
|
| 587 |
def Vap_Discharge_1(self, p2, g, mw, temp, f, z, id, L_eq): |
| 588 |
try:
|
| 589 |
R = 0.08206
|
| 590 |
|
| 591 |
Tmp_Const = 101325 * mw / (1.033 ** 2 * (g ** 2) * R * temp * z) |
| 592 |
Tmp_Const2 = id / f
|
| 593 |
pressure_unit = self.units['Pressure'] |
| 594 |
if pressure_unit == 'kg/cm2': |
| 595 |
const_iteration = 5
|
| 596 |
elif pressure_unit == 'psi': |
| 597 |
const_iteration = 75
|
| 598 |
elif pressure_unit == 'atm': |
| 599 |
const_iteration = 5
|
| 600 |
elif pressure_unit == 'bar': |
| 601 |
const_iteration = 5
|
| 602 |
elif pressure_unit == 'mmHg': |
| 603 |
const_iteration = 3800
|
| 604 |
elif pressure_unit == 'kPa': |
| 605 |
const_iteration = 506
|
| 606 |
elif pressure_unit == 'MPa': |
| 607 |
const_iteration = 0.5
|
| 608 |
|
| 609 |
x2 = p2 + const_iteration |
| 610 |
delta_x_past = 0
|
| 611 |
|
| 612 |
loop = True
|
| 613 |
while loop:
|
| 614 |
X = x2 |
| 615 |
f_x = (Tmp_Const2 * (Tmp_Const * (X ** 2 - p2 ** 2) - 2 * math.log(X / p2))) - L_eq |
| 616 |
df_x = 2 * Tmp_Const2 * (Tmp_Const * X - 1 / X) |
| 617 |
x2 = X - (f_x / df_x) |
| 618 |
delta_x = x2 - X |
| 619 |
if abs(delta_x_past) == abs(delta_x): |
| 620 |
break
|
| 621 |
|
| 622 |
delta_x_past = delta_x |
| 623 |
|
| 624 |
if delta_x == 0 or x2 < 0: |
| 625 |
loop = False
|
| 626 |
|
| 627 |
return x2
|
| 628 |
|
| 629 |
except Exception as ex: |
| 630 |
from App import App |
| 631 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 632 |
sys.exc_info()[-1].tb_lineno)
|
| 633 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 634 |
|
| 635 |
def get_equivalent_length(self, i): |
| 636 |
try:
|
| 637 |
if self.items[i].data.equivalent_length_input: |
| 638 |
return self.items[i].data.equivalent_length_input |
| 639 |
else:
|
| 640 |
return self.items[i].data.equivalent_length_cal |
| 641 |
except Exception as ex: |
| 642 |
from App import App |
| 643 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 644 |
sys.exc_info()[-1].tb_lineno)
|
| 645 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 646 |
|
| 647 |
def suction_cal(self, calc_cnt=1): |
| 648 |
try:
|
| 649 |
for i in range(1, len(self.items) - 1, 3): |
| 650 |
self.suction_find_line(i)
|
| 651 |
self.suction_static_cal(i) # static P를 계산해줌 |
| 652 |
|
| 653 |
# 라인이 liquid 인지 vapor인지 판별
|
| 654 |
if self.items[i].data.phase_type == 'Liquid' or self.items[i].data.phase_type == 'Mixed': |
| 655 |
# liquid 인 경우 stream 데이타로부터 del.P를 입력해줌.
|
| 656 |
self.pressure_drops[self.items[i]] = self.items[i].data.pressure_drop_friction |
| 657 |
res = self.suction_p_cal(i, calc_cnt)
|
| 658 |
if res == 0: |
| 659 |
break
|
| 660 |
elif self.items[i].data.phase_type == 'Vapor': |
| 661 |
# vapor인 경우 압력강하를 계산해주고 넣어주는 모듈
|
| 662 |
self.suction_vapor_factor_length(i)
|
| 663 |
res = self.suction_p_cal(i, calc_cnt)
|
| 664 |
if res == 0: |
| 665 |
break
|
| 666 |
|
| 667 |
self.fill_start = i
|
| 668 |
except Exception as ex: |
| 669 |
from App import App |
| 670 |
message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 671 |
sys.exc_info()[-1].tb_lineno)
|
| 672 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 673 |
|
| 674 |
def suction_find_line(self, i): |
| 675 |
self.extras[self.items[i]] = self.items[i].data.phase_type |
| 676 |
if self.items[i].data.phase_type == 'Liquid' or self.items[i].data.phase_type == 'Mixed': |
| 677 |
self.density_elevations[self.items[i]] = self.items[i].data.density |
| 678 |
elif self.items[i].data.phase_type == 'Vapor': |
| 679 |
self.suction_vapor_density(i)
|
| 680 |
else:
|
| 681 |
raise ValueError('You have to input the properties of stream <{}>\nCalculation will be terminated !'.format( |
| 682 |
self.items[i].data.stream_no))
|
| 683 |
|
| 684 |
def suction_vapor_density(self, i): |
| 685 |
try:
|
| 686 |
|
| 687 |
Ref_baro = self.get_barometric_pressure()
|
| 688 |
press2 = self.pressures[self.items[i - 1]] |
| 689 |
|
| 690 |
# '여기에 아래의 p를 이용하여 density를 넣는 항을 만들어줘야함 (완료)
|
| 691 |
# 'pressure를 k.g.a로 맞춤
|
| 692 |
pressure_unit = self.units['Pressure'] |
| 693 |
if pressure_unit == 'kg/cm2': |
| 694 |
press2 = press2 + Ref_baro |
| 695 |
elif pressure_unit == 'psi': |
| 696 |
press2 = press2 / 14.7 * 1.033 + Ref_baro |
| 697 |
elif pressure_unit == 'atm': |
| 698 |
press2 = press2 * 1.033 + Ref_baro
|
| 699 |
elif pressure_unit == 'bar': |
| 700 |
press2 = press2 / 1.013 * 1.033 + Ref_baro |
| 701 |
elif pressure_unit == 'mmHg': |
| 702 |
press2 = press2 / 760 * 1.033 + Ref_baro |
| 703 |
elif pressure_unit == 'kPa': |
| 704 |
press2 = press2 / 101.325 * 1.033 + Ref_baro |
| 705 |
elif pressure_unit == 'MPa': |
| 706 |
press2 = press2 / 0.101325 * 1.033 + Ref_baro |
| 707 |
|
| 708 |
# temp 가져오기
|
| 709 |
temp = self.items[i].data.temperature
|
| 710 |
# 'temp를 kalvin으로 맞추기
|
| 711 |
temp_unit = self.units['Temperature'] |
| 712 |
if temp_unit == '℃': |
| 713 |
temp = temp + 273.15
|
| 714 |
elif temp_unit == '℉': |
| 715 |
temp = (temp - 32) / 1.8 + 273.15 |
| 716 |
|
| 717 |
# 'MW 가져오기
|
| 718 |
mw = self.items[i].data.molecular_weight
|
| 719 |
|
| 720 |
# 'Z 가져오기
|
| 721 |
z = self.items[i].data.compress_factor
|
| 722 |
|
| 723 |
# 밀도 계산
|
| 724 |
density2 = press2 * mw / 0.08206 / temp / z / 1.033 |
| 725 |
|
| 726 |
# '밀도 입력
|
| 727 |
density_unit = self.units['Density'] |
| 728 |
if density_unit == 'kg/m3': |
| 729 |
density2 = density2 |
| 730 |
elif density_unit == 'lb/ft3': |
| 731 |
density2 = density2 * 0.062428
|
| 732 |
|
| 733 |
self.density_elevations[self.items[i]] = density2 |
| 734 |
except Exception as ex: |
| 735 |
from App import App |
| 736 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 737 |
sys.exc_info()[-1].tb_lineno)
|
| 738 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 739 |
|
| 740 |
def suction_static_cal(self, i): |
| 741 |
try:
|
| 742 |
if self.items[i].data.phase_type == 'Mixed': |
| 743 |
pass # TODO: |
| 744 |
else:
|
| 745 |
density_unit = self.units['Density'] |
| 746 |
if density_unit == 'kg/m3': |
| 747 |
density2 = self.density_elevations[self.items[i]] |
| 748 |
else:
|
| 749 |
density2 = self.density_elevations[self.items[i]] * 16.0185 # lb/ft3 |
| 750 |
|
| 751 |
# 2 elevation 받음
|
| 752 |
length_unit = self.units['Length'] |
| 753 |
if length_unit == 'm': |
| 754 |
el1 = self.density_elevations[self.items[i - 1]] |
| 755 |
el2 = self.density_elevations[self.items[i + 1]] |
| 756 |
elif length_unit == 'in': |
| 757 |
el1 = self.density_elevations[self.items[i - 1]] * 0.0254 |
| 758 |
el2 = self.density_elevations[self.items[i + 1]] * 0.0254 |
| 759 |
elif length_unit == 'ft': |
| 760 |
el1 = self.density_elevations[self.items[i - 1]] * 0.3048 |
| 761 |
el2 = self.density_elevations[self.items[i + 1]] * 0.3048 |
| 762 |
elif length_unit == 'yd': |
| 763 |
el1 = self.density_elevations[self.items[i - 1]] * 0.9144 |
| 764 |
el2 = self.density_elevations[self.items[i + 1]] * 0.9144 |
| 765 |
elif length_unit == 'mm': |
| 766 |
el1 = self.density_elevations[self.items[i - 1]] * 0.001 |
| 767 |
el2 = self.density_elevations[self.items[i + 1]] * 0.001 |
| 768 |
else: # mile |
| 769 |
el1 = self.density_elevations[self.items[i - 1]] * 1609.34 |
| 770 |
el2 = self.density_elevations[self.items[i + 1]] * 1609.34 |
| 771 |
|
| 772 |
# 3. static head 계산
|
| 773 |
stat_dp = (el2 - el1) * density2 / 1000 * 9.80665 / 101.325 # atm으로 계산된 dp |
| 774 |
|
| 775 |
# 4. 압력 유닛에 맞춰 뿌리기
|
| 776 |
pressure_unit = self.units['Pressure'] |
| 777 |
if pressure_unit == 'kg/cm2': |
| 778 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 1.033 |
| 779 |
elif pressure_unit == 'psi': |
| 780 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 14.7 |
| 781 |
elif pressure_unit == 'atm': |
| 782 |
self.pressure_drops[self.items[i - 1]] = stat_dp |
| 783 |
elif pressure_unit == 'bar': |
| 784 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 1.013 |
| 785 |
elif pressure_unit == 'mmHg': |
| 786 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 760 |
| 787 |
elif pressure_unit == 'kPa': |
| 788 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 101.325 |
| 789 |
elif pressure_unit == 'MPa': |
| 790 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 0.101325 |
| 791 |
except Exception as ex: |
| 792 |
from App import App |
| 793 |
message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 794 |
sys.exc_info()[-1].tb_lineno)
|
| 795 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 796 |
|
| 797 |
def p_eq_input(self): |
| 798 |
try:
|
| 799 |
# 시작, 끝 기기의 pressure와 elevation을 구한다
|
| 800 |
self.pressures[self.items[0]] = self.items[0].data.pressure |
| 801 |
self.density_elevations[self.items[0]] = self.items[0].data.elevation |
| 802 |
self.pressures[self.items[-1]] = self.items[-1].data.pressure |
| 803 |
self.density_elevations[self.items[-1]] = self.items[-1].data.elevation |
| 804 |
|
| 805 |
if len(self.items) == 3: |
| 806 |
# 장치 2개와 Line 1개로 구성된 경우
|
| 807 |
pass
|
| 808 |
else:
|
| 809 |
for i in range(2, len(self.items) - 3, 3): |
| 810 |
dp_eq = str(self.items[i])[:3] |
| 811 |
if dp_eq == 'HEX' or dp_eq == 'M_D' or dp_eq == 'M_R': |
| 812 |
dp_eq = str(self.items[i])[:3] |
| 813 |
|
| 814 |
# pressure drop
|
| 815 |
if self.items[i].data.pressure_drop is not None: |
| 816 |
self.pressure_drops[self.items[i]] = self.items[i].data.pressure_drop |
| 817 |
if not self.items[i].data.pressure_drop: |
| 818 |
pass
|
| 819 |
|
| 820 |
# elevation
|
| 821 |
if dp_eq[:3] == 'M_R': |
| 822 |
self.density_elevations[self.items[i]] = self.items[i].data.elevation |
| 823 |
self.density_elevations[self.items[i + 1]] = self.items[i + 1].data.elevation |
| 824 |
else:
|
| 825 |
self.density_elevations[self.items[i]] = self.items[i].data.elevation |
| 826 |
self.density_elevations[self.items[i + 1]] = self.items[i + 1].data.elevation |
| 827 |
|
| 828 |
if dp_eq[:3] == 'L_P' or dp_eq[:3] == 'R_P' or dp_eq[:3] == 'V_P' or dp_eq[:3] == 'R_K': |
| 829 |
self.extras[self.items[i]] = self.items[i].data.over_design_cv \ |
| 830 |
if self.items[i].data.over_design_cv else 0 |
| 831 |
elif dp_eq[:3] == 'CV_': |
| 832 |
self.extras[self.items[i]] = self.items[i].data.over_design_cv \ |
| 833 |
if self.items[i].data.over_design_cv else 0 |
| 834 |
self.extras[self.items[i + 1]] = None # TODO: |
| 835 |
except Exception as ex: |
| 836 |
from App import App |
| 837 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 838 |
sys.exc_info()[-1].tb_lineno)
|
| 839 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 840 |
|
| 841 |
def discharge_den(self, i): |
| 842 |
try:
|
| 843 |
self.extras[self.items[i]] = self.items[i].data.phase_type |
| 844 |
# 1. density 받음
|
| 845 |
if self.items[i].data.phase_type == 'Liquid' or self.items[i].data.phase_type == 'Mixed': |
| 846 |
self.density_elevations[self.items[i]] = self.items[i].density |
| 847 |
elif self.items[i].data.phase_type == 'Vapor': |
| 848 |
self.discharge_vapor_density(i)
|
| 849 |
except Exception as ex: |
| 850 |
from App import App |
| 851 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 852 |
sys.exc_info()[-1].tb_lineno)
|
| 853 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 854 |
|
| 855 |
def get_barometric_pressure(self): |
| 856 |
try:
|
| 857 |
unit = self.units['Pressure'] |
| 858 |
if unit == 'kg/cm2': |
| 859 |
barometric_pressure = 1.033
|
| 860 |
elif unit == 'bar': |
| 861 |
barometric_pressure = 1.01325
|
| 862 |
elif unit == 'psi': |
| 863 |
barometric_pressure = 14.7
|
| 864 |
elif unit == 'mmHg': |
| 865 |
barometric_pressure = 760
|
| 866 |
elif unit == 'kPa': |
| 867 |
barometric_pressure = 101.325
|
| 868 |
elif unit == 'MPa': |
| 869 |
barometric_pressure = 0.101325
|
| 870 |
|
| 871 |
return barometric_pressure
|
| 872 |
except Exception as ex: |
| 873 |
from App import App |
| 874 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 875 |
sys.exc_info()[-1].tb_lineno)
|
| 876 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 877 |
|
| 878 |
def discharge_vapor_density(self, i): |
| 879 |
try:
|
| 880 |
Ref_baro = self.get_barometric_pressure()
|
| 881 |
press2 = self.pressures[self.items[i + 1]] |
| 882 |
|
| 883 |
# '여기에 아래의 p를 이용하여 density를 넣는 항을 만들어줘야함
|
| 884 |
# 'pressure를 k.g.a로 맞춤
|
| 885 |
pressure_unit = self.units['Pressure'] |
| 886 |
if pressure_unit == 'kg/cm2': |
| 887 |
press2 = press2 + Ref_baro |
| 888 |
elif pressure_unit == 'psi': |
| 889 |
press2 = press2 / 14.7 * 1.033 + Ref_baro |
| 890 |
elif pressure_unit == 'atm': |
| 891 |
press2 = press2 * 1.033 + Ref_baro
|
| 892 |
elif pressure_unit == 'bar': |
| 893 |
press2 = press2 / 1.013 * 1.033 + Ref_baro |
| 894 |
elif pressure_unit == 'mmHg': |
| 895 |
press2 = press2 / 760 * 1.033 + Ref_baro |
| 896 |
elif pressure_unit == 'kPa': |
| 897 |
press2 = press2 / 101.325 * 1.033 + Ref_baro |
| 898 |
elif pressure_unit == 'MPa': |
| 899 |
press2 = press2 / 0.101325 * 1.033 + Ref_baro |
| 900 |
|
| 901 |
# temp 가져오기
|
| 902 |
temp = self.items[i].data.temperature
|
| 903 |
# 'temp를 kalvin으로 맞추기
|
| 904 |
temp_unit = self.units['Temperature'] |
| 905 |
if temp_unit == '℃': |
| 906 |
temp = temp + 273.15
|
| 907 |
elif temp_unit == '℉': |
| 908 |
temp = (temp - 32) / 1.8 + 273.15 |
| 909 |
|
| 910 |
# 'MW 가져오기
|
| 911 |
mw = self.items[i].data.molecular_weight
|
| 912 |
|
| 913 |
# 'Z 가져오기
|
| 914 |
z = self.items[i].data.compress_factor
|
| 915 |
|
| 916 |
# 밀도 계산
|
| 917 |
density2 = press2 * mw / 0.08206 / temp / z / 1.033 |
| 918 |
|
| 919 |
# '밀도 입력
|
| 920 |
density_unit = self.units['Density'] |
| 921 |
if density_unit == 'kg/m3': |
| 922 |
density2 = density2 |
| 923 |
elif density_unit == 'lb/ft3': |
| 924 |
density2 = density2 * 0.062428
|
| 925 |
|
| 926 |
self.density_elevations[self.items[i]] = density2 |
| 927 |
except Exception as ex: |
| 928 |
from App import App |
| 929 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 930 |
sys.exc_info()[-1].tb_lineno)
|
| 931 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 932 |
|
| 933 |
def discharge_static_cal(self, i): |
| 934 |
""" (2) static P를 계산 """
|
| 935 |
|
| 936 |
try:
|
| 937 |
if self.items[i].data.phase_type == 'Mixed': |
| 938 |
self.pressure_drops[self.items[i - 1]] = self.items[i].data.pressure_drop_static |
| 939 |
else:
|
| 940 |
# 1. density 받음
|
| 941 |
density_unit = self.units['Density'] |
| 942 |
if density_unit == 'kg/m3': |
| 943 |
density2 = self.density_elevations[self.items[i]] |
| 944 |
else:
|
| 945 |
density2 = self.density_elevations[self.items[i]] * 16.0185 # lb/ft3 |
| 946 |
|
| 947 |
# 2 elevation 받음
|
| 948 |
length_unit = self.units['Length'] |
| 949 |
if length_unit == 'm': |
| 950 |
el1 = self.density_elevations[self.items[i - 1]] |
| 951 |
el2 = self.density_elevations[self.items[i + 1]] |
| 952 |
elif length_unit == 'in': |
| 953 |
el1 = self.density_elevations[self.items[i - 1]] * 0.0254 |
| 954 |
el2 = self.density_elevations[self.items[i + 1]] * 0.0254 |
| 955 |
elif length_unit == 'ft': |
| 956 |
el1 = self.density_elevations[self.items[i - 1]] * 0.3048 |
| 957 |
el2 = self.density_elevations[self.items[i + 1]] * 0.3048 |
| 958 |
elif length_unit == 'yd': |
| 959 |
el1 = self.density_elevations[self.items[i - 1]] * 0.9144 |
| 960 |
el2 = self.density_elevations[self.items[i + 1]] * 0.9144 |
| 961 |
elif length_unit == 'mm': |
| 962 |
el1 = self.density_elevations[self.items[i - 1]] * 0.001 |
| 963 |
el2 = self.density_elevations[self.items[i + 1]] * 0.001 |
| 964 |
else: # mile |
| 965 |
el1 = self.density_elevations[self.items[i - 1]] * 1609.34 |
| 966 |
el2 = self.density_elevations[self.items[i + 1]] * 1609.34 |
| 967 |
|
| 968 |
# 3. static head 계산
|
| 969 |
stat_dp = (el2 - el1) * density2 / 1000 * 9.80665 / 101.325 # atm으로 계산된 dp |
| 970 |
|
| 971 |
# 4. 압력 유닛에 맞춰 뿌리기
|
| 972 |
pressure_unit = self.units['Pressure'] |
| 973 |
if pressure_unit == 'kg/cm2': |
| 974 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 1.033 |
| 975 |
elif pressure_unit == 'psi': |
| 976 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 14.7 |
| 977 |
elif pressure_unit == 'atm': |
| 978 |
self.pressure_drops[self.items[i - 1]] = stat_dp |
| 979 |
elif pressure_unit == 'bar': |
| 980 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 1.013 |
| 981 |
elif pressure_unit == 'mmHg': |
| 982 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 760 |
| 983 |
elif pressure_unit == 'kPa': |
| 984 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 101.325 |
| 985 |
elif pressure_unit == 'MPa': |
| 986 |
self.pressure_drops[self.items[i - 1]] = stat_dp * 0.101325 |
| 987 |
except Exception as ex: |
| 988 |
from App import App |
| 989 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 990 |
sys.exc_info()[-1].tb_lineno)
|
| 991 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 992 |
|
| 993 |
def suction_vapor_factor_length(self, i): |
| 994 |
try:
|
| 995 |
# '입력된 vapor의 압력과 밀도를 가지고 끊어서 계산하는 factor를 적용했을때 length가 얼마나 나오는지 판별하는 것.
|
| 996 |
|
| 997 |
# pipe dia 가져오기
|
| 998 |
ida = self.items[i].data.inside_pipe_size
|
| 999 |
pipe_diameter_unit = self.units['Pipe_Diameter'] |
| 1000 |
if pipe_diameter_unit == 'in': |
| 1001 |
ida = ida * 0.0254
|
| 1002 |
elif pipe_diameter_unit == 'mm': |
| 1003 |
ida = ida / 1000
|
| 1004 |
|
| 1005 |
# 'mass 가져오기 기준 kg/h
|
| 1006 |
mass = self.items[i].data.flowrate_mass
|
| 1007 |
flowrate_mass_unit = self.units['Flowrate_Mass'] |
| 1008 |
if flowrate_mass_unit == 'kg/h': |
| 1009 |
mass = mass |
| 1010 |
elif flowrate_mass_unit == 'g/min': |
| 1011 |
mass = mass * 60 / 1000 |
| 1012 |
elif flowrate_mass_unit == 'lb/h': |
| 1013 |
mass = mass * 0.453592
|
| 1014 |
elif flowrate_mass_unit == 't/h': |
| 1015 |
mass = mass * 1000
|
| 1016 |
|
| 1017 |
# 'g 구하기 (kg/m2/s)
|
| 1018 |
g = mass / 3600 / (3.1415 * ida ** 2 / 4) |
| 1019 |
|
| 1020 |
density2 = self.density_elevations[self.items[i]] |
| 1021 |
# '속도 계산 (m/s)
|
| 1022 |
velocity = 4 * mass / density2 / 3.1415 / ida ** 2 / 3600 |
| 1023 |
|
| 1024 |
# 'Mach Number 계산
|
| 1025 |
# 'k 가져오기
|
| 1026 |
k = self.items[i].data.specific_heat_ratio
|
| 1027 |
|
| 1028 |
# temp 가져오기
|
| 1029 |
temp = self.items[i].data.temperature
|
| 1030 |
# 'temp를 kalvin으로 맞추기
|
| 1031 |
temp_unit = self.units['Temperature'] |
| 1032 |
if temp_unit == '℃': |
| 1033 |
temp = temp + 273.15
|
| 1034 |
elif temp_unit == '℉': |
| 1035 |
temp = (temp - 32) / 1.8 + 273.15 |
| 1036 |
|
| 1037 |
# 'MW 가져오기
|
| 1038 |
mw = self.items[i].data.molecular_weight
|
| 1039 |
|
| 1040 |
mach = velocity / ((k * 9.80665 * 847.28 * temp / mw) ** 0.5) |
| 1041 |
|
| 1042 |
# '부피유량 계산
|
| 1043 |
volume = mass / density2 |
| 1044 |
|
| 1045 |
# '현재 volume은 m3/h임. 부피유량 단위에 맞춰 뿌려줌
|
| 1046 |
flowrate_volume_unit = self.units['Flowrate_Volume'] |
| 1047 |
if flowrate_volume_unit == 'm3/h': |
| 1048 |
self.items[i].data.flowrate_volume = round(volume, 3) |
| 1049 |
elif flowrate_volume_unit == 'l/min': |
| 1050 |
self.items[i].data.flowrate_volume = round(volume / 60 * 1000, 3) |
| 1051 |
elif flowrate_volume_unit == 'ft3/h': |
| 1052 |
self.items[i].data.flowrate_volume = round(volume * 35.3147, 3) |
| 1053 |
elif flowrate_volume_unit == 'USgpm': |
| 1054 |
self.items[i].data.flowrate_volume = round(volume * 4.40287, 3) |
| 1055 |
elif flowrate_volume_unit == 'BPSD': |
| 1056 |
self.items[i].data.flowrate_volume = round(volume * 150.955, 3) |
| 1057 |
|
| 1058 |
viscosity = self.items[i].data.viscosity
|
| 1059 |
# ' viscosity 유닛 변환 (모두 kg/m.s로 바꿀것임)
|
| 1060 |
viscosity_unit = self.units['Viscosity'] |
| 1061 |
if viscosity_unit == 'kg/m.sec': |
| 1062 |
viscosity = viscosity |
| 1063 |
elif viscosity_unit == 'cP': |
| 1064 |
viscosity = viscosity * 0.001
|
| 1065 |
elif viscosity_unit == 'kg/m.h': |
| 1066 |
viscosity = viscosity / 3600
|
| 1067 |
elif viscosity_unit == 'lb/ft.s': |
| 1068 |
viscosity = viscosity * 1.48816
|
| 1069 |
|
| 1070 |
# density case에 따라 re계산
|
| 1071 |
density_unit = self.units['Density'] |
| 1072 |
if density_unit == 'kg/m3': |
| 1073 |
reynolds = ida * velocity * density2 / viscosity |
| 1074 |
elif density_unit == 'lb/ft3': |
| 1075 |
reynolds = ida * velocity * (density2 * 16.0185) / viscosity
|
| 1076 |
|
| 1077 |
# roughness를 m로 바꿔줌
|
| 1078 |
rough = self.items[i].data.roughness
|
| 1079 |
roughness_unit = self.units['Roughness'] |
| 1080 |
if roughness_unit == 'm': |
| 1081 |
rough = rough |
| 1082 |
elif roughness_unit == 'ft': |
| 1083 |
rough = rough * 0.3048
|
| 1084 |
elif roughness_unit == 'in': |
| 1085 |
rough = rough * 0.0254
|
| 1086 |
elif roughness_unit == 'mm': |
| 1087 |
rough = rough * 0.001
|
| 1088 |
|
| 1089 |
# ' reynolds수에 따라 Fanning/Chen friction factor 계산
|
| 1090 |
if reynolds <= 2100: |
| 1091 |
f = 4 * 16 / reynolds |
| 1092 |
else:
|
| 1093 |
af = math.log(rough / ida / 3.7 + (6.7 / reynolds) ** 0.9) / math.log(10) |
| 1094 |
f = (-2 * (math.log(rough / 3.7 / ida - 5.02 / reynolds * af) / math.log(10))) ** (-2) |
| 1095 |
|
| 1096 |
self.items[i].data.friction_factor = f
|
| 1097 |
|
| 1098 |
# '속도와 mach 수 입력
|
| 1099 |
velocity_unit = self.units['Velocity'] |
| 1100 |
if velocity_unit == 'm/s': |
| 1101 |
self.items[i].data.velocity = round(velocity, 3) |
| 1102 |
elif velocity_unit == 'ft/s': |
| 1103 |
self.items[i].data.velocity = round(velocity * 3.28084, 3) |
| 1104 |
|
| 1105 |
self.items[i].data.reynolds = round(mach, 5) |
| 1106 |
|
| 1107 |
Ref_baro = self.get_barometric_pressure()
|
| 1108 |
press2 = self.pressures[self.items[i - 1]] |
| 1109 |
|
| 1110 |
# pressure를 k.g.a로 맞춤
|
| 1111 |
pressure_unit = self.units['Pressure'] |
| 1112 |
if pressure_unit == 'kg/cm2': |
| 1113 |
press2 = press2 + Ref_baro |
| 1114 |
elif pressure_unit == 'psi': |
| 1115 |
press2 = press2 / 14.7 * 1.033 + Ref_baro |
| 1116 |
elif pressure_unit == 'atm': |
| 1117 |
press2 = press2 * 1.033 + Ref_baro
|
| 1118 |
elif pressure_unit == 'bar': |
| 1119 |
press2 = press2 / 1.013 * 1.033 + Ref_baro |
| 1120 |
elif pressure_unit == 'mmHg': |
| 1121 |
press2 = press2 / 760 * 1.033 + Ref_baro |
| 1122 |
elif pressure_unit == 'kPa': |
| 1123 |
press2 = press2 / 101.325 * 1.033 + Ref_baro |
| 1124 |
elif pressure_unit == 'MPa': |
| 1125 |
press2 = press2 / 0.101325 * 1.033 + Ref_baro |
| 1126 |
|
| 1127 |
press1est = press2 * 0.95 # HY_Calc_sht.Cells(2, 1) |
| 1128 |
|
| 1129 |
z = self.items[i].data.compress_factor
|
| 1130 |
density1est = press1est * mw / 0.08206 / temp / z / 1.033 |
| 1131 |
|
| 1132 |
# ' 라인 길이 도출 (m)
|
| 1133 |
estlength = abs(
|
| 1134 |
(((press1est ** 2 - press2 ** 2) * mw / g ** 2 / 0.08206 / 1.033 ** 2 / temp / z * 101325) - ( |
| 1135 |
2 * math.log(density1est / density2))) * ida / f)
|
| 1136 |
|
| 1137 |
# 라인 길이를 유닛에 맞춰서 변환
|
| 1138 |
length_unit = self.units['Length'] |
| 1139 |
if length_unit == 'm': |
| 1140 |
estlength = estlength |
| 1141 |
elif length_unit == 'in': |
| 1142 |
estlength = estlength * 39.3701
|
| 1143 |
elif length_unit == 'ft': |
| 1144 |
estlength = estlength * 3.28084
|
| 1145 |
elif length_unit == 'yd': |
| 1146 |
estlength = estlength * 1.09361
|
| 1147 |
elif length_unit == 'mile': |
| 1148 |
estlength = estlength * 0.000621371
|
| 1149 |
elif length_unit == 'mm': |
| 1150 |
estlength = estlength * 1000
|
| 1151 |
|
| 1152 |
equivalent_length = self.get_equivalent_length(i)
|
| 1153 |
if estlength > equivalent_length:
|
| 1154 |
# '주어진 길이를 가지고 압력 강하를 계산하는 모듈이 들어가야함 (safe)
|
| 1155 |
# ' length 여유 있음. 한번에 isothermal 식으로 계산
|
| 1156 |
self.suction_vap_dp_cal1(i, press2, g, mw, temp, f, z, ida)
|
| 1157 |
else:
|
| 1158 |
# '끊어서 계산하는 모듈이 들어가야함
|
| 1159 |
# 'length 여유 없음. 압력 재계산->밀도 재계산->re, f 재계산->압력 재계산 체계로 가야함
|
| 1160 |
self.suction_vap_dp_cal2(i, press2, g, mw, temp, f, z, ida)
|
| 1161 |
|
| 1162 |
except Exception as ex: |
| 1163 |
from App import App |
| 1164 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 1165 |
sys.exc_info()[-1].tb_lineno)
|
| 1166 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 1167 |
|
| 1168 |
def suction_vap_dp_cal2(self, i, press2, g, mw, temp, f, z, ida): |
| 1169 |
# 끊은 결과 length 여유가 없음, 고로 물성치 (밀도) 를 재계산해주어야 함
|
| 1170 |
|
| 1171 |
pass
|
| 1172 |
|
| 1173 |
def suction_vap_dp_cal1(self, i, press2, g, mw, temp, f, z, ida): |
| 1174 |
try:
|
| 1175 |
# 끊은 결과 length가 여유가 있음. 그래서 단순 계산하는 모듈
|
| 1176 |
length = self.get_equivalent_length(i)
|
| 1177 |
|
| 1178 |
# length를 m로 변환
|
| 1179 |
length_unit = self.units['Length'] |
| 1180 |
if length_unit == 'm': |
| 1181 |
length = length |
| 1182 |
elif length_unit == 'in': |
| 1183 |
length = length * 0.0254
|
| 1184 |
elif length_unit == 'ft': |
| 1185 |
length = length * 0.3048
|
| 1186 |
elif length_unit == 'yd': |
| 1187 |
length = length * 0.9144
|
| 1188 |
elif length_unit == 'mile': |
| 1189 |
length = length * 1609.34
|
| 1190 |
elif length_unit == 'mm': |
| 1191 |
length = length * 0.001
|
| 1192 |
|
| 1193 |
# Newton's Rule에 따라
|
| 1194 |
press1 = self.Vap_Suction_1(press2, g, mw, temp, f, z, ida, length)
|
| 1195 |
pressure_unit = self.units['Pressure'] |
| 1196 |
if pressure_unit == 'kg/cm2': |
| 1197 |
self.pressure_drops[self.items[i]] = press2 - press1 |
| 1198 |
elif pressure_unit == 'psi': |
| 1199 |
self.pressure_drops[self.items[i]] = (press2 - press1) / 1.033 * 14.7 |
| 1200 |
elif pressure_unit == 'atm': |
| 1201 |
self.pressure_drops[self.items[i]] = (press2 - press1) / 1.033 |
| 1202 |
elif pressure_unit == 'bar': |
| 1203 |
self.pressure_drops[self.items[i]] = (press2 - press1) / 1.033 * 1.033 |
| 1204 |
elif pressure_unit == 'mmHg': |
| 1205 |
self.pressure_drops[self.items[i]] = (press2 - press1) / 1.033 * 760 |
| 1206 |
elif pressure_unit == 'kPa': |
| 1207 |
self.pressure_drops[self.items[i]] = (press2 - press1) / 1.033 * 101.325 |
| 1208 |
elif pressure_unit == 'MPa': |
| 1209 |
self.pressure_drops[self.items[i]] = (press2 - press1) / 10.33 * 0.101325 |
| 1210 |
|
| 1211 |
self.suction_p_cal(i)
|
| 1212 |
except Exception as ex: |
| 1213 |
from App import App |
| 1214 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 1215 |
sys.exc_info()[-1].tb_lineno)
|
| 1216 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 1217 |
|
| 1218 |
def Vap_Suction_1(self, p2, g, mw, temp, f, z, id, L_eq): |
| 1219 |
try:
|
| 1220 |
R = 0.08206
|
| 1221 |
|
| 1222 |
Tmp_Const = 101325 * mw / (1.033 ** 2 * (g ** 2) * R * temp * z) |
| 1223 |
Tmp_Const2 = id / f
|
| 1224 |
|
| 1225 |
x2 = p2 |
| 1226 |
delta_x_past = 0
|
| 1227 |
|
| 1228 |
loop = True
|
| 1229 |
while loop:
|
| 1230 |
X = x2 |
| 1231 |
f_x = (Tmp_Const2 * (Tmp_Const * (p2 ** 2 - X ** 2) - 2 * math.log(p2 / X))) - L_eq |
| 1232 |
df_x = 2 * Tmp_Const2 * (1 / X - Tmp_Const * X) |
| 1233 |
x2 = X - (f_x / df_x) |
| 1234 |
delta_x = x2 - X |
| 1235 |
if abs(delta_x_past) == abs(delta_x): |
| 1236 |
break
|
| 1237 |
|
| 1238 |
delta_x_past = delta_x |
| 1239 |
|
| 1240 |
if delta_x == 0 or x2 < 0: |
| 1241 |
loop = False
|
| 1242 |
|
| 1243 |
return x2
|
| 1244 |
|
| 1245 |
except Exception as ex: |
| 1246 |
from App import App |
| 1247 |
message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 1248 |
sys.exc_info()[-1].tb_lineno)
|
| 1249 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 1250 |
|
| 1251 |
def suction_p_cal(self, i, calc_cnt=1): |
| 1252 |
res = 1
|
| 1253 |
|
| 1254 |
try:
|
| 1255 |
self.pressures[self.items[i]] = self.pressures[self.items[i - 1]] - self.pressure_drops[self.items[i - 1]] |
| 1256 |
|
| 1257 |
if self.pressures[self.items[i]] < 0: |
| 1258 |
pressure_unit = self.units['Pressure'] |
| 1259 |
if pressure_unit == 'kg/cm2': |
| 1260 |
pabsolute = self.pressures[self.items[i]] + 1.033 |
| 1261 |
elif pressure_unit == 'psi': |
| 1262 |
pabsolute = self.pressures[self.items[i]] + 14.7 |
| 1263 |
elif pressure_unit == 'atm': |
| 1264 |
pabsolute = self.pressures[self.items[i]] + 1 |
| 1265 |
elif pressure_unit == 'bar': |
| 1266 |
pabsolute = self.pressures[self.items[i]] + 1.013 |
| 1267 |
elif pressure_unit == 'mmHg': |
| 1268 |
pabsolute = self.pressures[self.items[i]] + 760 |
| 1269 |
elif pressure_unit == 'kPa': |
| 1270 |
pabsolute = self.pressures[self.items[i]] + 101.325 |
| 1271 |
elif pressure_unit == 'MPa': |
| 1272 |
pabsolute = self.pressures[self.items[i]] + 0.101325 |
| 1273 |
|
| 1274 |
if pabsolute < 0: |
| 1275 |
raise ValueError('The absolute pressure of {} is below 0.'.format(self.items[i])) |
| 1276 |
|
| 1277 |
if i < len(self.items) - 2: |
| 1278 |
self.pressures[self.items[i + 1]] = self.pressures[self.items[i]] - self.pressure_drops[self.items[i]] |
| 1279 |
if self.pressures[self.items[i + 1]] < 0: |
| 1280 |
pressure_unit = self.units['Pressure'] |
| 1281 |
if pressure_unit == 'kg/cm2': |
| 1282 |
pabsolute = self.pressures[self.items[i + 1]] + 1.033 |
| 1283 |
elif pressure_unit == 'psi': |
| 1284 |
pabsolute = self.pressures[self.items[i + 1]] + 14.7 |
| 1285 |
elif pressure_unit == 'atm': |
| 1286 |
pabsolute = self.pressures[self.items[i + 1]] + 1 |
| 1287 |
elif pressure_unit == 'bar': |
| 1288 |
pabsolute = self.pressures[self.items[i + 1]] + 1.013 |
| 1289 |
elif pressure_unit == 'mmHg': |
| 1290 |
pabsolute = self.pressures[self.items[i + 1]] + 760 |
| 1291 |
elif pressure_unit == 'kPa': |
| 1292 |
pabsolute = self.pressures[self.items[i + 1]] + 101.325 |
| 1293 |
elif pressure_unit == 'MPa': |
| 1294 |
pabsolute = self.pressures[self.items[i + 1]] + 0.101325 |
| 1295 |
|
| 1296 |
if pabsolute < 0: |
| 1297 |
raise ValueError('The absolute pressure of {} is below 0.'.format(self.items[i + 1])) |
| 1298 |
|
| 1299 |
if calc_cnt == 1: |
| 1300 |
if self.items[i + 1] in self.pressure_drops and self.pressure_drops[self.items[i + 1]] is not None: |
| 1301 |
name = str(self.items[i + 1])[:3] |
| 1302 |
if name == 'L_P' or name == 'R_P' or name == 'V_P' or name == 'R_K' or name == 'L_K': |
| 1303 |
self.pressures[self.items[i + 2]] = self.pressures[self.items[i + 1]] + \ |
| 1304 |
self.pressure_drops[self.items[i + 1]] |
| 1305 |
else:
|
| 1306 |
self.pressures[self.items[i + 2]] = self.pressures[self.items[i + 1]] - \ |
| 1307 |
self.pressure_drops[self.items[i + 1]] |
| 1308 |
else:
|
| 1309 |
res = 0
|
| 1310 |
elif calc_cnt == 2: |
| 1311 |
if self.items[i + 1] in self.pressure_drops and self.pressure_drops[self.items[i + 1]] is not None: |
| 1312 |
name = str(self.items[i + 1])[:3] |
| 1313 |
if name == 'CV_': |
| 1314 |
res = 0
|
| 1315 |
elif name == 'L_P' or name == 'R_P' or name == 'V_P' or name == 'R_K' or name == 'L_K': |
| 1316 |
self.pressures[self.items[i + 2]] = self.pressures[self.items[i + 1]] + \ |
| 1317 |
self.pressure_drops[self.items[i + 1]] |
| 1318 |
else:
|
| 1319 |
self.pressures[self.items[i + 2]] = self.pressures[self.items[i + 1]] - \ |
| 1320 |
self.pressure_drops[self.items[i + 1]] |
| 1321 |
else:
|
| 1322 |
res = 0
|
| 1323 |
except Exception as ex: |
| 1324 |
from App import App |
| 1325 |
message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 1326 |
sys.exc_info()[-1].tb_lineno)
|
| 1327 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 1328 |
|
| 1329 |
return res
|
| 1330 |
|
| 1331 |
def hole_p_cal(self, i): |
| 1332 |
res = 1
|
| 1333 |
|
| 1334 |
try:
|
| 1335 |
self.pressures[self.items[i]] = self.pressures[self.items[i + 1]] + self.pressure_drops[self.items[i]] \ |
| 1336 |
if not self.pressure_drops[self.items[i]] is None else 0 |
| 1337 |
|
| 1338 |
index = str(self.items[i - 2])[:3] |
| 1339 |
if i > 0: |
| 1340 |
self.pressures[self.items[i - 1]] = self.pressures[self.items[i]] + self.pressure_drops[ |
| 1341 |
self.items[i - 1]] |
| 1342 |
|
| 1343 |
if self.items[i - 2] in self.pressure_drops and self.pressure_drops[self.items[i - 2]] is not None: |
| 1344 |
if index == 'L_P' or index == 'R_P' or index == 'V_P' or index == 'R_K' or index == 'L_K': |
| 1345 |
self.pressures[self.items[i - 2]] = self.pressures[self.items[i - 1]] - \ |
| 1346 |
self.pressure_drops[self.items[i - 2]] |
| 1347 |
else:
|
| 1348 |
self.pressures[self.items[i - 2]] = self.pressures[self.items[i - 1]] + \ |
| 1349 |
self.pressure_drops[self.items[i - 2]] |
| 1350 |
else:
|
| 1351 |
# 여기에 그 루프는 그만 하는 로직을 넣어줘야함
|
| 1352 |
res = 0
|
| 1353 |
except Exception as ex: |
| 1354 |
from App import App |
| 1355 |
message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 1356 |
sys.exc_info()[-1].tb_lineno)
|
| 1357 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 1358 |
|
| 1359 |
return res
|
| 1360 |
|
| 1361 |
def discharge_p_cal(self, i, calc_cnt=1): |
| 1362 |
res = 1
|
| 1363 |
|
| 1364 |
try:
|
| 1365 |
pressure = 0 if self.pressures[self.items[i + 1]] is None else self.pressures[self.items[i + 1]] |
| 1366 |
pressure_drop = 0 if self.pressure_drops[self.items[i]] is None else self.pressure_drops[self.items[i]] |
| 1367 |
|
| 1368 |
self.pressures[self.items[i]] = pressure + pressure_drop |
| 1369 |
name = str(self.items[i - 2])[:3] |
| 1370 |
if i > 1: |
| 1371 |
self.pressures[self.items[i - 1]] = self.pressures[self.items[i]] + \ |
| 1372 |
self.pressure_drops[self.items[i - 1]] |
| 1373 |
|
| 1374 |
if calc_cnt == 1: |
| 1375 |
if self.items[i - 2] in self.pressure_drops and self.pressure_drops[self.items[i - 2]] is not None: |
| 1376 |
if name == 'L_P' or name == 'R_P' or name == 'V_P' or name == 'R_K' or name == 'L_K': |
| 1377 |
self.pressures[self.items[i - 2]] = self.pressures[self.items[i - 1]] - self.pressure_drops[ |
| 1378 |
self.items[i - 2]] |
| 1379 |
else:
|
| 1380 |
self.pressures[self.items[i - 2]] = self.pressures[self.items[i - 1]] + self.pressure_drops[ |
| 1381 |
self.items[i - 2]] |
| 1382 |
else:
|
| 1383 |
# 여기에 그 루프는 그만 하는 로직을 넣어줘야함
|
| 1384 |
res = 0
|
| 1385 |
elif calc_cnt == 2: |
| 1386 |
if self.items[i - 2] in self.pressure_drops and self.pressure_drops[self.items[i - 2]] is not None: |
| 1387 |
if name == 'CV_': |
| 1388 |
self.pressure_drops[self.items[i - 2]] = self.pressures[self.items[i - 2]] - \ |
| 1389 |
self.pressures[self.items[i - 1]] |
| 1390 |
res = 0
|
| 1391 |
elif name == 'L_P' or name == 'R_P' or name == 'V_P' or name == 'R_K' or name == 'L_K': |
| 1392 |
self.pressures[self.items[i - 2]] = self.pressures[self.items[i - 1]] - self.pressure_drops[ |
| 1393 |
self.items[i - 2]] |
| 1394 |
else:
|
| 1395 |
self.pressures[self.items[i - 2]] = self.pressures[self.items[i - 1]] + self.pressure_drops[ |
| 1396 |
self.items[i - 2]] |
| 1397 |
else:
|
| 1398 |
# 여기에 그 루프는 그만 하는 로직을 넣어줘야함
|
| 1399 |
res = 0
|
| 1400 |
except Exception as ex: |
| 1401 |
from App import App |
| 1402 |
message = 'error occurred({}) in {}:{}'.format(repr(ex), sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 1403 |
sys.exc_info()[-1].tb_lineno)
|
| 1404 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 1405 |
|
| 1406 |
return res
|
| 1407 |
|
| 1408 |
|
| 1409 |
class Transfer(QObject): |
| 1410 |
onRemoved = pyqtSignal(QGraphicsItem) |
| 1411 |
|
| 1412 |
def __init__(self, parent=None): |
| 1413 |
QObject.__init__(self, parent)
|
