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cpgui_cycle3.py
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cpgui_cycle3.py
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# -*- coding: utf-8 -*-
#
import sys
from tkinter import *
from tkinter import ttk
import CoolProp
from CoolProp.CoolProp import PropsSI
from cpgui_all import *
import gettext
import numpy as np
from PIL import ImageTk, Image
from scipy.optimize import bisect
class cpg_cycle3(myDialog):
def __init__(self, GridFrame,Caller,Debug=False):
#
self.initcomplete=False
#
self.Caller=Caller
#
# by module translations
self.language=cpgui_language
localedir=find_data_file('locale')
self.lang = gettext.translation('cpg_cycle2', localedir=localedir, languages=[self.language])
self.lang.install()
#
self.Debug=Debug
#
#########################################################################################################################
# add all input variables to the following list
self.VarVal ={
't0':268.15,
'dt0h':10,
'Q0':35000,
'T_gc_out':273.15+40,
'hp':10000000,
'mp': 5500000,
'sl_dth':10,
'comp_lambda':0.87,
'comp_eta':0.769
}
# create data structure like below to generate input form
self.InputPanels ={'Evaporator':{'Title':_('Evaporator'),
'row':1, # row of Evaporator Frame in InputFrame
'col':1, # coloumn of Evaporator Frame in InputFrame
'order':['t0','dt0h','Q0'], # Input fields order of appearance
't0':[_('Temperature'),self.VarVal['t0'],GUI_UNIT('T'),'T'], # Input fields, Label, Variable to change, Unit Label / this List will be extended by a tkinter StringVar for callback on change
'dt0h':[_('Superheat'),self.VarVal['dt0h'],GUI_UNIT('dT'),'dT'],
'Q0':[_('Capacity'),self.VarVal['Q0'],GUI_UNIT('P'),'P'],
},
'Gascooler':{'Title':_('Gascooler'),
'row':1,
'col':2,
'order':['T_gc_out','hp','empty'],
'T_gc_out':[_('T. out'),self.VarVal['T_gc_out'],GUI_UNIT('T'),'T'],
'hp':[_('High pressure'),self.VarVal['hp'],GUI_UNIT('p'),'p'],
'empty':[' '],
},
'Receiver':{'Title':_('Receiver'),
'row':1,
'col':3,
'order':['mp','empty','empty'],
'mp':[_('Middle pressure'),self.VarVal['mp'],GUI_UNIT('p'),'p'],
'empty':[' '],
},
'Pipes':{'Title':_('Suction line SL'),
'row':2,
'col':2,
'order':['sl_dth'],
'sl_dth':[_('SL superheat'),self.VarVal['sl_dth'],GUI_UNIT('dT'),'dT'],
},
'Compressor':{'Title':_('Compressor'),
'row':2,
'col':1,
'order':['comp_eta','comp_lambda'],
'comp_eta':[_('Isentropic efficiency'),self.VarVal['comp_eta'],GUI_UNIT('eta'),'eta'],
'comp_lambda':[_('Volumetric efficiency'),self.VarVal['comp_lambda'],GUI_UNIT('eta'),'eta'],
},
}
#################################################################################################################################
#
self.dialogframe=GridFrame
#
self.Caller=Caller
self.ref=Caller.get_ref()
#
self.frameborder=5
#
self.statetext=' '
#
self.InfoDict={'1' :('1', _('Compressor intake =M ')),
'2s' :('2s', _('Isentropic compression')),
'2' :('2', _('Real compression')),
'3' :('3', _('Gascooler out')),
'A' :('A', _('High pressure controller')),
'4' :('4', _('Inlet middle pressure receiver')),
'C' :('C', _('Middle pressure receiver')),
'5' :('5', _('Liquid out middle pressure receiver')),
'6' :('6', _('Flashgas middle pressure receiver')),
'B' :('B', _('middle pressure controller')),
'7' :('7', _('Evaporator entry')),
'8' :('8', _('Exit evaporator')),
'9' :('9', _('Exit middle pressure controller')),
'10' :('10', _('End of suction line')),
'M' :('M', _('Mixing point 9 + 10 ')),
'order' :('1','2s','2','3','A','4','C','5','6','B','7','8','9','10','M'),
}
# Frames for input and output
self.InputFrame= LabelFrame(self.dialogframe,relief=GROOVE,bd=self.frameborder,text=_('Cycle inputs'),font=("Arial", 10, "bold"))
self.InputFrame.grid(row=1,column=1,padx=8,pady=5,sticky=W)
self.OutputFrame= LabelFrame(self.dialogframe,relief=GROOVE,bd=self.frameborder,text=_('Cycle outputs'),font=("Arial", 10,"bold"))
self.OutputFrame.grid(row=3,column=1,padx=8,pady=5,sticky=EW,rowspan=10,columnspan=3)
#
# create Inputs form
#
for key in self.InputPanels :
self.GridInputPanel(self.InputFrame,key,Debug=False)
#
self.Button_1 = Button(self.InputFrame,text=_(' Calculate '),font=("Arial", 12, "bold") )
self.Button_1.grid(row=2,rowspan=1,column=3,pady=5,sticky=W,padx=8)
self.Button_1.bind("<ButtonRelease-1>", self.calculate)
#
# Output
#
self.out_nb = ttk.Notebook(self.OutputFrame)
self.out_nb.pack(fill = 'both', expand = 1, padx = 5, pady = 5)
#
self.tab1_frame = ttk.Frame(self.OutputFrame)
self.tab2_frame = ttk.Frame(self.OutputFrame)
self.tab3_frame = ttk.Frame(self.OutputFrame)
# tab 1 cycle display and selection
self.out_nb.add(self.tab1_frame,text=_('Cycle information'))
#
self.InfoFrame= LabelFrame(self.tab1_frame,relief=GROOVE,bd=self.frameborder,text=_('Statepoints'),font=("Arial", 10, "bold"))
self.InfoFrame.grid(row=1,column=1,padx=8,pady=5,sticky=W)
inforow=1
for point in self.InfoDict['order']:
pl=Label(self.InfoFrame,text='{:<10}'.format(self.InfoDict[point][0]),font=("Arial", 10) )
pl.grid(row=inforow,rowspan=1,column=1,pady=2,sticky=W,padx=2)
tl=Label(self.InfoFrame,text='{:<35}'.format(self.InfoDict[point][1]),font=("Arial", 10) )
tl.grid(row=inforow,rowspan=1,column=2,pady=2,sticky=W,padx=2)
inforow+=1
self.cycle1png=find_data_file('co2-abb-5.png')
imgfile = Image.open(self.cycle1png)
render = ImageTk.PhotoImage(imgfile)
img = Label(self.tab1_frame, image=render)
img.image = render
img.grid(row=1,column=2,pady=5,sticky=NS,padx=8)
#
self.out_nb.add(self.tab2_frame,text=_('Output table'))
#
self.statetext=' '
lbframe1 = Frame( self.tab2_frame )
self.Text_1_frame = lbframe1
scrollbar1 = Scrollbar(lbframe1, orient=VERTICAL)
self.Text_1 = Text(lbframe1, width="110", height="25", yscrollcommand=scrollbar1.set)
scrollbar1.config(command=self.Text_1.yview)
scrollbar1.pack(side=RIGHT, fill=Y)
self.Text_1.pack(side=LEFT, fill=BOTH, expand=1)
self.Text_1_frame.grid(row=1,column=1,columnspan=1,padx=2,sticky=W+E,pady=4)
self.Text_1.delete(1.0, END)
#
self.out_nb.bind_all("<<NotebookTabChanged>>", self.tabChangedEvent)
self.initcomplete=True
def GridInputPanel(self,GridFrame,PanelKey,Debug=False,tfont=("Arial", 10, "bold"),font=("Arial", 10)):
#
LineList=self.InputPanels[PanelKey]['order']
GIPanel=LabelFrame(GridFrame,relief=GROOVE,bd=5,text=self.InputPanels[PanelKey]['Title'])
GIPanel.grid(row=self.InputPanels[PanelKey]['row'],column=self.InputPanels[PanelKey]['col'],padx=8,pady=5,sticky=W)
#
i=1
for k in self.InputPanels[PanelKey]['order'] :
if self.InputPanels[PanelKey][k][0] != ' ' :
self.InputPanels[PanelKey][k].append(StringVar())
outval=SI_TO(self.InputPanels[PanelKey][k][-2], self.InputPanels[PanelKey][k][1])
#print('cycle 1 : GridInputPanel : SI_TO : ',outval)
#self.InputPanels[PanelKey][k][-1].set('%f'%self.InputPanels[PanelKey][k][1])
self.InputPanels[PanelKey][k][-1].set(outval)
self.InputPanels[PanelKey][k][-1].trace("w", lambda name, index, mode, var=self.InputPanels[PanelKey][k][-1],quantity=self.InputPanels[PanelKey][k][-2], key=k: self.GridInputPanelUpdate(var, key, quantity))
Label(GIPanel, text=self.InputPanels[PanelKey][k][0],font=font).grid(column=1, row=i,padx=8,pady=5,sticky=W)
Entry(GIPanel, width=15, textvariable=self.InputPanels[PanelKey][k][-1],font=font).grid(column=2, row=i,padx=8,pady=5,sticky=W)
Label(GIPanel, text=self.InputPanels[PanelKey][k][2],font=font).grid(column=3, row=i,padx=8,pady=5,sticky=W)
else :
Label(GIPanel, text=' ',font=font).grid(column=1, row=i,padx=8,pady=5,sticky=W)
#
i+=1
#
def GridInputPanelUpdate(self, sv,key,quantity):
#print(sv, key, sv.get(),quantity)
#self.VarVal[key]=sv.get()
try :
self.VarVal[key]=TO_SI(quantity,float(sv.get().replace(',','.')))
except ValueError :
pass
#print( key,self.VarVal[key])
def tabChangedEvent(self,event):
self.ref='CO2'
def calculate(self,event):
#
self.ref='CO2'
#
t0 = self.VarVal['t0'] # Evaporation temperature in K
dt0h = self.VarVal['dt0h'] # Superheat in K
Q0 = self.VarVal['Q0'] # refrigeration capacity in W
T_gc_out = self.VarVal['T_gc_out'] # Gascooler outlet temperature in K
hp = self.VarVal['hp'] # High pressure
mp = self.VarVal['mp'] # Middle pressure
sl_dth = self.VarVal['sl_dth'] # superheat suction line in K
comp_eta = self.VarVal['comp_eta'] # Compressor isentropic efficiency
comp_lambda = self.VarVal['comp_lambda'] # Compressor volumetric efficiency
#
self.statetext=_('Cycle with middle pressure receiver, statepoint Table for %s\n\n')%self.ref
self.statetext+=(" Point | t | p | v | h | s | x | Description \n")
self.datarow= " %6s | %6.2f | %6.2f | %10.5f | %7.2f | %7.4f | %7s | %s \n"
self.statetext+=" | {} | {} | {} | {} | {} | {} | \n".format(GUI_UNIT('T'),GUI_UNIT('p'),GUI_UNIT('v'),GUI_UNIT('H'),GUI_UNIT('S'),GUI_UNIT('Q'),)
self.statetext+= "-------------------------------------------------------------------------------------------------\n"
self.row={}
#
### Gascooler Exit #########################################
#
name='3'
p3=hp
t3=T_gc_out
h3=PropsSI('H','P',p3,'T',t3,self.ref)
v3=1/PropsSI('D','T',t3,'P',p3,self.ref)
s3=PropsSI('S','T',t3,'P',p3,self.ref)
x3=' '
self.row[name]=self.datarow%(self.InfoDict[name][0],SI_TO('T',t3),SI_TO('p',p3),v3,SI_TO('H',h3),SI_TO('S',s3),x3,self.InfoDict[name][1])
#
### Middle pressure receiver inlet #########################################
#
name='4'
p4=mp
t4=PropsSI('T','P',p4,'Q',0,self.ref)
h4=h3
v4=1/PropsSI('D','P',p4,'H',h4,self.ref)
s4=PropsSI('S','P',p4,'H',h4,self.ref)
x4=PropsSI('Q','P',p4,'H',h4,self.ref)
self.row[name]=self.datarow%(self.InfoDict[name][0],SI_TO('T',t4),SI_TO('p',p4),v4,SI_TO('H',h4),SI_TO('S',s4),'%5.4f'%x4,self.InfoDict[name][1])
#
### Middle pressure receiver Liquid out #########################################
#
name='5'
p5=mp
t5=PropsSI('T','P',p5,'Q',0,self.ref)
h5=PropsSI('H','P',p5,'Q',0,self.ref)
v5=1/PropsSI('D','P',p5,'Q',0,self.ref)
s5=PropsSI('S','P',p5,'Q',0,self.ref)
x5=' '
self.row[name]=self.datarow%(self.InfoDict[name][0],SI_TO('T',t5),SI_TO('p',p5),v5,SI_TO('H',h5),SI_TO('S',s5),x5,self.InfoDict[name][1])
#
### Middle pressure receiver Gas out #########################################
#
name='6'
p6=mp
t6=PropsSI('T','P',p6,'Q',1,self.ref)
v6=1/PropsSI('D','P',p6,'Q',1,self.ref)
h6=PropsSI('H','P',p6,'Q',1,self.ref)
s6=PropsSI('S','P',p6,'Q',1,self.ref)
x6=' '
self.row[name]=self.datarow%(self.InfoDict[name][0],SI_TO('T',t6),SI_TO('p',p6),v6,SI_TO('H',h6),SI_TO('S',s6),x6,self.InfoDict[name][1])
#
### Evaporator entry #########################################
#
name='7'
p7=PropsSI('P','T',t0,'Q',0,self.ref)
t7=t0
h7=h5
v7=1/PropsSI('D','P',p7,'H',h7,self.ref)
s7=PropsSI('S','P',p7,'H',h7,self.ref)
x7=PropsSI('Q','P',p7,'H',h7,self.ref)
self.row[name]=self.datarow%(self.InfoDict[name][0],SI_TO('T',t7),SI_TO('p',p7),v7,SI_TO('H',h7),SI_TO('S',s7),'%5.4f'%x7,self.InfoDict[name][1])
#
### Evaporator out #########################################
#
name='8'
p8=p7
t8=t7+dt0h
h8=PropsSI('H','P',p8,'T',t8,self.ref)
v8=1/PropsSI('D','P',p8,'H',h8,self.ref)
s8=PropsSI('S','P',p8,'H',h8,self.ref)
x8=' '
self.row[name]=self.datarow%(self.InfoDict[name][0],SI_TO('T',t8),SI_TO('p',p8),v8,SI_TO('H',h8),SI_TO('S',s8),x8,self.InfoDict[name][1])
#
### Exit middle pressure controller #########################################
#
name='9'
p9=p8
h9=h6
t9=t7
v9=1/PropsSI('D','P',p9,'H',h9,self.ref)
s9=PropsSI('S','P',p9,'H',h9,self.ref)
x9=PropsSI('Q','P',p9,'H',h9,self.ref)
self.row[name]=self.datarow%(self.InfoDict[name][0],SI_TO('T',t9),SI_TO('p',p9),v9,SI_TO('H',h9),SI_TO('S',s9),'%5.4f'%x9,self.InfoDict[name][1])
#
### Suction line out #########################################
#
name='10'
p10=p8
t10=t8+sl_dth
h10=PropsSI('H','P',p10,'T',t10,self.ref)
v10=1/PropsSI('D','P',p10,'H',h10,self.ref)
s10=PropsSI('S','P',p10,'H',h10,self.ref)
x10=' '
self.row[name]=self.datarow%(self.InfoDict[name][0],SI_TO('T',t10),SI_TO('p',p10),v10,SI_TO('H',h10),SI_TO('S',s10),x10,self.InfoDict[name][1])
#
### compressor inlet #########################################
#
name='1'
massflow_evaporator = Q0 /(h8-h7)
massflow_compressor = massflow_evaporator/(1-x4)
massflow_flashgas = massflow_compressor - massflow_evaporator
#
p1=p10
h1=(massflow_evaporator * h10 + massflow_flashgas * h9 ) / massflow_compressor
t1=PropsSI('T','P',p1,'H',h1,self.ref)
v1=1/PropsSI('D','H',h1,'P',p1,self.ref)
h1=PropsSI('H','H',h1,'P',p1,self.ref)
s1=PropsSI('S','H',h1,'P',p1,self.ref)
x1=PropsSI('Q','P',p1,'H',h1,self.ref)
if x1 == -1 :
x8 =' '
xx1 ='sh. gas'
if x1 >=0 and x1 <=1 :
xx1 = '%5.4f'%x1
self.row[name]=self.datarow%(self.InfoDict[name][0],SI_TO('T',t1),SI_TO('p',p1),v1,SI_TO('H',h1),SI_TO('S',s1),xx1,self.InfoDict[name][1])
#
### isentropic compression #########################################
#
name='2s'
p2s=hp
s2s=s1
t2s=PropsSI('T','P',p2s,'S',s2s,self.ref)
v2s=1/PropsSI('D','T',t2s,'P',p2s,self.ref)
h2s=PropsSI('H','T',t2s,'P',p2s,self.ref)
x2s=' '
self.row[name]=self.datarow%(self.InfoDict[name][0],SI_TO('T',t2s),SI_TO('p',p2s),v2s,SI_TO('H',h2s),SI_TO('S',s2s),x2s,self.InfoDict[name][1])
#
### real compression #########################################
#
name='2'
p2=hp
#
isentropic_work = h2s-h1
real_work = isentropic_work / comp_eta
#
h2= h1 + real_work
#
t2=PropsSI('T','P',p2,'H',h2,self.ref)
v2=1/PropsSI('D','T',t2,'P',p2,self.ref)
s2=PropsSI('S','T',t2,'P',p2,self.ref)
x2=' '
self.row[name]=self.datarow%(self.InfoDict[name][0],SI_TO('T',t2),SI_TO('p',p2),v2,SI_TO('H',h2),SI_TO('S',s2),x2,self.InfoDict[name][1])
#
for point in self.InfoDict['order']:
try :
self.statetext+=self.row[point]
except KeyError :
pass
#
# from here units need to be fixed
#
self.statetext+=_('\nPower calculations | Key performance values\n')
self.statetext+=_('Evaporator %8.2f kW | Pressure ratio %8.2f \n')%(SI_TO('P',Q0),(p2/p1))
self.statetext+=_('Gascooler %8.2f kW | Pressure difference %8.2f %s\n')%(((h2-h3)*massflow_compressor/1000),SI_TO('p',p2-p1),GUI_UNIT('p'))
self.statetext+=_('Compressor %8.2f kW \n\n')%((real_work*massflow_compressor/1000))
self.statetext+=_('Mass flow Evaporator %5.5f kg/s | Mass flow flashgas %8.6f kg/s \n')%(massflow_evaporator,massflow_flashgas)
self.statetext+=_('Mass flow Compressor %5.5f kg/s | Volume flow Compressor %8.4f m³/h \n')%(massflow_compressor,(massflow_compressor*3600)/(comp_lambda/v1))
#self.statetext+=_('Compressor %8.2f kW | Volumetric capacity %8.2f kJ/m³ \n')%(((h2-h1)*self.mdot),(SI_TO('P',self.Q0)/(v1*self.mdot*1000)))
#self.statetext+=_(' | COP %8.2f \n')%(SI_TO('P',self.Q0)/((h2-h1)*self.mdot))
#
self.Text_1.delete(1.0, END)
self.Text_1.insert(END, self.statetext)
self.out_nb.select(1)
self.Text_1.delete(1.0, END)
self.Text_1.insert(END, self.statetext)
self.out_nb.select(1)
def Update(self):
#
pass
class _Testdialog:
def __init__(self, master):
frame = Frame(master)
frame.pack()
self.Caller = master
self.x, self.y, self.w, self.h = -1,-1,-1,-1
#
self.ref='R134a'
#
App=cpg_cycle3(frame,self,Debug=True)
def get_ref(self):
return 'R134a'
def get_language(self):
return 'de'
def main():
root = Tk()
app = _Testdialog(root)
root.mainloop()
if __name__ == '__main__':
main()