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Solver_compressor.py
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Solver_compressor.py
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from PyQt5.QtCore import QObject, pyqtSignal
import time
import CoolProp as CP
from GUI_functions import load_refrigerant_list
from backend.CompressorPHY import CompressorPHYClass
from backend.CompressorAHRI import CompressorAHRIClass
from backend.Functions import get_AS
class solver(QObject):
finished = pyqtSignal(tuple)
terminal_message = pyqtSignal(str)
def __init__(self,compressor,options,parent=None):
super(solver, self).__init__(parent)
ref_list = load_refrigerant_list()
if not ref_list[0]:
raise
ref_list = ref_list[1]
ref = options['Ref']
AS = get_AS(options['Backend'],ref,None)
if AS[0]:
self.AS = AS[1]
else:
pass
if options['inlet_cond'] == 0:
self.cond_in = 0
self.P_in = options['inlet_pressure']
self.T_in = options['inlet_temperature']
elif options['inlet_cond'] == 1:
self.cond_in = 1
self.P_in = options['inlet_pressure']
self.Q_in = options['inlet_quality']
elif options['inlet_cond'] == 2:
self.cond_in = 2
self.Q_in = options['inlet_quality']
self.T_in = options['inlet_temperature']
elif options['inlet_cond'] == 3:
self.cond_in = 3
self.P_in = options['inlet_pressure']
self.T_diff_in = options['inlet_temp_diff']
elif options['inlet_cond'] == 4:
self.cond_in = 4
self.T_in = options['inlet_temperature']
self.T_diff_in = options['inlet_temp_diff']
if options['outlet_cond'] == 0:
self.cond_out = 0
self.P_out = options['outlet_pressure']
elif options['outlet_cond'] == 1:
self.cond_out = 1
self.T_out = options['outlet_temperature']
if compressor.Comp_model == "physics":
self.Compressor = CompressorPHYClass()
self.Compressor.name = compressor.Comp_name
self.Compressor.fp = compressor.Comp_fp
self.Compressor.Vdot_ratio_P = compressor.Comp_ratio_P
self.Compressor.Vdot_ratio_M = compressor.Comp_ratio_M
self.Compressor.Displacement = compressor.Comp_vol
self.Compressor.act_speed = compressor.Comp_speed
self.Compressor.Elec_eff = compressor.Comp_elec_eff
self.Compressor.isen_eff = compressor.isentropic_exp
self.Compressor.vol_eff = compressor.vol_exp
self.Compressor.F_factor = compressor.F_factor
self.Compressor.SH_type = compressor.SH_type
if compressor.SH_type == 0:
self.Compressor.SH_Ref = compressor.SH_Ref
elif compressor.SH_type == 1:
self.Compressor.Suction_Ref = compressor.Suction_Ref
elif compressor.Comp_model == "map":
self.Compressor = CompressorAHRIClass()
self.Compressor.name = compressor.Comp_name
self.Compressor.M = compressor.map_data.M_coeffs
self.Compressor.P = compressor.map_data.P_coeffs
self.Compressor.Speeds = compressor.map_data.Speeds
self.Compressor.fp = compressor.Comp_fp
self.Compressor.Vdot_ratio_P = compressor.Comp_ratio_P
self.Compressor.Vdot_ratio_M = compressor.Comp_ratio_M
self.Compressor.Displacement = compressor.Comp_vol
if compressor.map_data.std_type == 0:
self.Compressor.SH_Ref = compressor.map_data.std_sh
elif compressor.map_data.std_type == 1:
self.Compressor.Suction_Ref = compressor.map_data.std_suction
self.Compressor.act_speed = compressor.Comp_speed
self.Compressor.Unit_system = compressor.unit_system
self.Compressor.Elec_eff = compressor.Comp_elec_eff
self.Compressor.F_factor = compressor.map_data.F_value
elif compressor.Comp_model == "10coefficients":
self.Compressor = CompressorAHRIClass()
self.Compressor.name = compressor.Comp_name
self.Compressor.M = compressor.M
self.Compressor.P = compressor.P
self.Compressor.Speeds = compressor.speeds
self.Compressor.fp = compressor.Comp_fp
self.Compressor.Vdot_ratio_P = compressor.Comp_ratio_P
self.Compressor.Vdot_ratio_M = compressor.Comp_ratio_M
self.Compressor.Displacement = compressor.Comp_vol
if compressor.std_type == 0:
self.Compressor.SH_Ref = compressor.std_sh
elif compressor.std_type == 1:
self.Compressor.Suction_Ref = compressor.std_suction
self.Compressor.act_speed = compressor.Comp_speed
self.Compressor.Unit_system = compressor.unit_system
self.Compressor.Elec_eff = compressor.Comp_elec_eff
self.Compressor.F_factor = compressor.Comp_AHRI_F_value
def run(self):
self.terminal_message.emit("Checked inputs")
time.sleep(0.1)
self.terminal_message.emit("Trying to solve compressor")
time.sleep(0.1)
result = self.solve()
if result[0]:
self.finished.emit((1,"Simulation finished",result[1]))
else:
self.finished.emit((0,result[1]))
def solve(self):
try:
if self.cond_in == 0:
self.AS.update(CP.PT_INPUTS,self.P_in,self.T_in)
self.h_in = self.AS.hmass()
elif self.cond_in == 1:
self.AS.update(CP.PQ_INPUTS,self.P_in,self.Q_in)
self.h_in = self.AS.hmass()
elif self.cond_in == 2:
self.AS.update(CP.QT_INPUTS,self.Q_in,self.T_in)
self.P_in = self.AS.p()
self.h_in = self.AS.hmass()
elif self.cond_in == 3:
self.AS.update(CP.PQ_INPUTS,self.P_in,1.0)
T_in = self.AS.T()
self.AS.update(CP.PT_INPUTS,self.P_in,T_in+self.T_diff_in)
self.h_in = self.AS.hmass()
elif self.cond_in == 4:
self.AS.update(CP.QT_INPUTS,1.0, self.T_in)
self.P_in = self.AS.p()
self.AS.update(CP.PT_INPUTS,self.P_in,self.T_in+self.T_diff_in)
self.h_in = self.AS.hmass()
if self.cond_out == 1:
self.AS.update(CP.QT_INPUTS,0.0,self.T_out)
self.P_out = self.AS.p()
if self.P_out <= self.P_in:
return (0, "Outlet refrigerant pressure should be higher than inlet refrigerant pressure")
params={
'Pin_r': self.P_in,
'Pout_r': self.P_out,
'hin_r': self.h_in,
'AS':self.AS,
}
self.Compressor.Update(**params)
self.Compressor.Calculate()
return (1,self.Compressor)
except:
import traceback
print(traceback.format_exc())
if self.Compressor.terminate:
return (0,"user terminated simulation")
else:
return (0,"Failed to solve Compressor")