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py_Receiver.py
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py_Receiver.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sun Feb 6 01:22:54 2022
@author: tufanakba
pyCycle class definition for receiver
"""
from pycycle.element_base import Element
import openmdao.api as om
import pycycle.api as pyc
from pycycle.flow_in import FlowIn
from pycycle.thermo.thermo import Thermo
from pycycle.passthrough import PassThrough
from receiver import ReceiverSubProblem
class py_Receiver(Element):
"""
A receiver design element that heats up the air and sizes the receiver.
--------------
Flow Stations
--------------
Fl_I
Fl_O
-------------
Design
-------------
inputs
--------
I_solar
r_1 & min. thickness
Mat.s
Max. T_allow
tol (as percentage)
m_dot
outputs
--------
t_RPC
t_INS
lenght
T_out
eff
-------------
Off-Design
-------------
inputs
--------
I_solar
dimensions
Mat.s
Max. T_allow
tol (as percentage)
m_dot
outputs
--------
T_out
eff
"""
def initialize(self):
self.options.declare('statics', default=True, desc='If True, calculate static properties.')
self.options.declare('opt',types=bool, default=False, desc='If True, optimizes the receiver, in design mode')
self.default_des_od_conns = [
# (design src, off-design target)
('Fl_O:stat:area', 'area')
]
self.options.declare('od_only', default=False, desc='For motoring prevents design mode')
super().initialize()
def pyc_setup_output_ports(self):
self.copy_flow('Fl_I', 'Fl_O')
def setup(self):
thermo_method = self.options['thermo_method']
thermo_data = self.options['thermo_data']
statics = self.options['statics']
design = self.options['design']
if self.options['od_only']:
design=False
opt = self.options['opt']
# elements = self.options['elements']
composition = self.Fl_I_data['Fl_I']
# Create inlet flow station
flow_in = FlowIn(fl_name='Fl_I')
self.add_subsystem('flow_in', flow_in, promotes=['Fl_I:tot:*', 'Fl_I:stat:*'])
if statics:
if design:
# Calculate static properties
# self._problem = prob = om.Problem()
# prob.driver = om.ScipyOptimizeDriver()
# prob.driver.options["optimizer"] = "SLSQP"
# prob.model.add_subsystem('rec', Receiver(),
# promotes_inputs=[('Mass_Flow', 'Fl_I:stat:W'),('cp','Fl_I:tot:Cp'),('T_fluid_in','Fl_I:tot:T'),'Tamb','Q_Solar_In'],
# promotes_outputs=[])
# prob.model.set_input_defaults('rec.L',0.6, units='m')
# prob.model.add_design_var('rec.L',lower = 0.02,upper = 0.07, units='m', scaler= 15)
# prob.model.add_objective('rec.eff_S2G',scaler=-1, adder=-1)#, adder=-1,scaler=100)#scaling should be increased
# prob.setup()
# prob.run_driver()
# self.add_subsystem('rec', Receiver(),
# promotes_inputs=[('Mass_Flow', 'Fl_I:stat:W'),('cp','Fl_I:tot:Cp'),('T_fluid_in','Fl_I:tot:T'),'Tamb','Q_Solar_In'],
# promotes_outputs=[])
self.add_subsystem('rec', ReceiverSubProblem(design=design,opt=opt),
promotes_inputs=[('Mass_Flow', 'Fl_I:stat:W'),('cp','Fl_I:tot:Cp'),('T_fluid_in','Fl_I:tot:T'),'Tamb','Q_Solar_In'],
promotes_outputs=['*'])
# Calculate real flow station properties
real_flow = Thermo(mode='total_TP', fl_name='Fl_O:tot',
method=thermo_method,
thermo_kwargs={'composition':composition,
'spec':thermo_data})
self.add_subsystem('real_flow', real_flow,
# promotes_inputs=[('T','Fl_I:tot:T'),('composition', 'Fl_I:tot:composition'),('P','Fl_I:tot:P')],
promotes_inputs=[('composition', 'Fl_I:tot:composition'),('P','Fl_I:tot:P')],
promotes_outputs=['Fl_O:*'])
self.connect('T_fluid_out', 'real_flow.T')
out_stat = Thermo(mode='static_MN', fl_name='Fl_O:stat',
method=thermo_method,
thermo_kwargs={'composition':composition,
'spec':thermo_data})
self.add_subsystem('out_stat', out_stat,
promotes_inputs=[('composition', 'Fl_I:tot:composition'), ('W', 'Fl_I:stat:W'), 'MN'],
promotes_outputs=['Fl_O:stat:*'])
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
else:
self.add_subsystem('rec', ReceiverSubProblem(design=design),
promotes_inputs=[('Mass_Flow', 'Fl_I:stat:W'),('cp','Fl_I:tot:Cp'),('T_fluid_in','Fl_I:tot:T'),'Tamb','Q_Solar_In'],
promotes_outputs=['*'])
# Calculate real flow station properties
real_flow = Thermo(mode='total_TP', fl_name='Fl_O:tot',
method=thermo_method,
thermo_kwargs={'composition':composition,
'spec':thermo_data})
self.add_subsystem('real_flow', real_flow,
promotes_inputs=[('composition', 'Fl_I:tot:composition'),('P','Fl_I:tot:P')],
promotes_outputs=['Fl_O:*'])
self.connect('T_fluid_out', 'real_flow.T')
# Calculate static properties
out_stat = Thermo(mode='static_A', fl_name='Fl_O:stat',
method=thermo_method,
thermo_kwargs={'composition':composition,
'spec':thermo_data})
prom_in = [('composition', 'Fl_I:tot:composition'),
('W', 'Fl_I:stat:W'),
'area']
prom_out = ['Fl_O:stat:*']
self.add_subsystem('out_stat', out_stat, promotes_inputs=prom_in,
promotes_outputs=prom_out)
self.connect('Fl_O:tot:S', 'out_stat.S')
self.connect('Fl_O:tot:h', 'out_stat.ht')
self.connect('Fl_O:tot:P', 'out_stat.guess:Pt')
self.connect('Fl_O:tot:gamma', 'out_stat.guess:gamt')
else:
self.add_subsystem('W_passthru', PassThrough('Fl_I:stat:W', 'Fl_O:stat:W', 0.0, units= "lbm/s"),
promotes=['*'])
super().setup()