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MPComplex2.py
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MPComplex2.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Fri Jun 10 21:24:36 2022
@author: tufanakba
LP - HP turbo model
MG connected to LP
"""
import openmdao.api as om
import pycycle.api as pyc
from py_Receiver import py_Receiver
from components.comp_map import AXI5
from components.MG3 import MG
class Complex2(pyc.Cycle):
def initialize(self):
# Initialize the model here by setting option variables such as a switch for design vs off-des cases
self.options.declare('setting_mode', default='T4', values=['T4', 'nozzle'])
super().initialize()
def setup(self):
design = self.options['design']
self.add_subsystem('fc', pyc.FlightConditions())
self.add_subsystem('inlet', pyc.Inlet())
# TODO: set maps here and assign the comp.s
comp_map = AXI5
turb_map = pyc.LPT2269
self.add_subsystem('LPcomp', pyc.Compressor(map_data=comp_map, map_extrap=True), promotes_inputs = [('Nmech','LP_Nmech')])
self.add_subsystem('HPcomp', pyc.Compressor(map_data=comp_map, map_extrap=True), promotes_inputs =[('Nmech','HP_Nmech')])
self.add_subsystem('rec', py_Receiver())
self.add_subsystem('HPturb', pyc.Turbine(map_data=turb_map, map_extrap=True), promotes_inputs =[('Nmech','HP_Nmech')])
self.add_subsystem('LPturb', pyc.Turbine(map_data=turb_map, map_extrap=True), promotes_inputs =[('Nmech','LP_Nmech')])
self.add_subsystem('nozz', pyc.Nozzle(nozzType='CD', lossCoef='Cv'))
self.add_subsystem('MG', MG(), promotes_inputs=[('n','LP_Nmech')])
self.add_subsystem('HPshaft', pyc.Shaft(num_ports=2), promotes_inputs =[('Nmech','HP_Nmech')])
self.add_subsystem('LPshaft', pyc.Shaft(num_ports=2), promotes_inputs =[('Nmech','LP_Nmech')])
self.pyc_connect_flow('fc.Fl_O', 'inlet.Fl_I', connect_w=False)
self.pyc_connect_flow('inlet.Fl_O', 'LPcomp.Fl_I')
self.pyc_connect_flow('LPcomp.Fl_O', 'HPcomp.Fl_I')
self.pyc_connect_flow('HPcomp.Fl_O', 'rec.Fl_I')
self.pyc_connect_flow('rec.Fl_O', 'HPturb.Fl_I')
self.pyc_connect_flow('HPturb.Fl_O', 'LPturb.Fl_I')
self.pyc_connect_flow('LPturb.Fl_O', 'nozz.Fl_I')
self.connect('HPcomp.trq', 'HPshaft.trq_0')
self.connect('HPturb.trq', 'HPshaft.trq_1')
# self.connect('shaft.trq_net', 'MG.trq')
self.connect('LPcomp.trq', 'LPshaft.trq_0')
self.connect('LPturb.trq', 'LPshaft.trq_1')
self.connect('LPshaft.trq_net', 'MG.trq')
self.connect('fc.Fl_O:stat:P', 'nozz.Ps_exhaust')
balance = self.add_subsystem('balance', om.BalanceComp())
if design:
balance.add_balance('LPturb_PR', val=3., lower=2., upper=5., eq_units='W', rhs_name='pwr_target')
self.connect('balance.LPturb_PR', 'LPturb.PR')
self.connect('MG.P_el', 'balance.lhs:LPturb_PR')
balance.add_balance('W', lower=0.0001, upper=0.01, units='lbm/s', eq_units='degC', rhs_name='T4_target')
self.connect('balance.W', 'inlet.Fl_I:stat:W')
self.connect('rec.Fl_O:tot:T', 'balance.lhs:W')
balance.add_balance('HPturb_PR', val=2.0, lower=1.25, upper=2.9, eq_units='hp', rhs_val=0.)
self.connect('balance.HPturb_PR', 'HPturb.PR')
self.connect('HPshaft.pwr_net', 'balance.lhs:HPturb_PR')
else:
balance.add_balance('LP_Nmech', units='rpm', lower=10000., upper=17250., eq_units='W', rhs_name='pwr_target')
self.connect('balance.LP_Nmech', 'LP_Nmech')
self.connect('MG.P_el', 'balance.lhs:LP_Nmech')
balance.add_balance('HP_Nmech', lower=20000., upper=29000., units='rpm', eq_units='hp', rhs_val=0.)
self.connect('balance.HP_Nmech', 'HP_Nmech')
self.connect('HPshaft.pwr_net', 'balance.lhs:HP_Nmech')
# balance.add_balance('Q_Solar', val=1000., upper=1100, lower=500, units='W',)
# self.connect('balance.Q_solar', 'rec.Q_Solar_In')
# self.connect('src_name', 'balance.lhs:Q_Solar')
if self.options['setting_mode'] == 'T4':
# Nozzle alanı ile receiver outlet temperature'u korole etmek gerekecek! 1050 W'dan işlemek mantıklı!
balance.add_balance('W', lower=0.0001, upper=0.01, units='lbm/s', eq_units='degC', rhs_val=1000,
rhs_name='T4_target')
# 1020'de çalışıyor
self.connect('balance.W', 'inlet.Fl_I:stat:W')
self.connect('rec.Fl_O:tot:T', 'balance.lhs:W')
if self.options['setting_mode'] == 'nozzle':
# balance.add_balance('W', lower=0.0001, upper=0.01, units='lbm/s', eq_units='inch**2')
# self.connect('balance.W', 'inlet.Fl_I:stat:W')
# self.connect('nozz.Throat:stat:area', 'balance.lhs:W')
balance.add_balance('W', lower=0.0001, upper=0.01, units='lbm/s', eq_units=None, rhs_val=2.0)
self.connect('balance.W', 'inlet.Fl_I:stat:W')
self.connect('LPcomp.map.RlineMap', 'balance.lhs:W')
self.set_order(['fc', 'inlet', 'LPcomp', 'HPcomp', 'rec', 'HPturb','LPturb', 'nozz','HPshaft','LPshaft', 'MG', 'balance'])
newton = self.nonlinear_solver = om.NewtonSolver()
newton.options['atol'] = 1e-6
newton.options['rtol'] = 1e-6
newton.options['iprint'] = 2
newton.options['maxiter'] = 50
newton.options['solve_subsystems'] = True
newton.options['max_sub_solves'] = 100
newton.options['reraise_child_analysiserror'] = False
# Stall definition
newton.options['stall_limit'] = 4
newton.options['stall_tol'] = 1e-5
newton.linesearch = om.ArmijoGoldsteinLS()
newton.linesearch.options['iprint'] = 1
newton.linesearch.options['maxiter'] = 4
newton.linesearch.options['rho'] = 0.85 # work on impact of rho 0.85 for sample brayton
# TODO: Make this false later
newton.linesearch.options['print_bound_enforce']=False
self.linear_solver = om.DirectSolver()
super().setup()
class MPComplex2(pyc.MPCycle):
def setup(self):
self.pyc_add_pnt('DESIGN', Complex2(design=True))
# for inlet area calculation MN must be set
self.set_input_defaults('DESIGN.inlet.MN', 0.0250)
self.set_input_defaults('DESIGN.LPcomp.MN', 0.030)
self.set_input_defaults('DESIGN.HPcomp.MN', 0.040)
self.set_input_defaults('DESIGN.rec.MN', 0.04)
self.set_input_defaults('DESIGN.HPturb.MN', 0.03)
self.set_input_defaults('DESIGN.LPturb.MN', 0.02)
# design point:
self.set_input_defaults('DESIGN.HP_Nmech', 25000.0, units='rpm')
self.set_input_defaults('DESIGN.LP_Nmech', 15000.0, units='rpm')
self.pyc_add_cycle_param('nozz.Cv', 0.99)
self.od_MNs = 0.000001
self.od_alts = 0.0
# Trials
self.od_pts = ['Od170','Od170nozzle']
self.od_pwrs = [170.,170.,180., 100.]
self.Q_Solar = [970.,970.,1050., 750.]
setting_mode = ['T4','nozzle','T4', 'nozzle']
# self.od_pts = ['SelfSupplied','Motoring','Max_105', 'Min_75']
# self.od_pwrs = [170.,170.,170., 170.]
# self.Q_Solar = [900.,890.,960., 970.]
# setting_mode = ['nozzle','nozzle','T4', 'T4']
# self.od_pts = ['Min150','Min1502','Min1503','Min1504','Min1505']
# self.od_pwrs = [-10.,-0.,-10.,-10.,-10.]
# self.Q_Solar = [400.,400.,300.,200.,100.]
# setting_mode = ['nozzle','nozzle','nozzle','nozzle','nozzle']
# self.od_pts = ['Max200','Max190','Max180','Od170','Min160','Min150','Min140','Min130','Min120','Min110','Min100']
# self.od_pwrs = [200.,190.,180.,170.,160.,150.,140.,130.,120.,110.,100]
# self.Q_Solar = [1100.,1060.,1020.,980.,940.,890.,850.,800.,750.,710.,660.]
# setting_mode = ['T4','T4','T4','nozzle','nozzle','nozzle','nozzle','nozzle','nozzle','nozzle','nozzle']
# This area needs to be set according to od conditions and balances
for i, pt in enumerate(self.od_pts):
self.pyc_add_pnt(pt, Complex2(design=False, setting_mode=setting_mode[i]))
self.set_input_defaults(pt + '.fc.MN', val=self.od_MNs)
self.set_input_defaults(pt + '.fc.alt', self.od_alts, units='ft')
self.set_input_defaults(pt + '.balance.pwr_target', self.od_pwrs[i], units='W')
self.set_input_defaults(pt + '.rec.Q_Solar_In', self.Q_Solar[i], units='W')
# transfering design conditions to od.s
self.pyc_connect_des_od('LPcomp.s_PR', 'LPcomp.s_PR')
self.pyc_connect_des_od('LPcomp.s_Wc', 'LPcomp.s_Wc')
self.pyc_connect_des_od('LPcomp.s_eff', 'LPcomp.s_eff')
self.pyc_connect_des_od('LPcomp.s_Nc', 'LPcomp.s_Nc')
self.pyc_connect_des_od('HPcomp.s_PR', 'HPcomp.s_PR')
self.pyc_connect_des_od('HPcomp.s_Wc', 'HPcomp.s_Wc')
self.pyc_connect_des_od('HPcomp.s_eff', 'HPcomp.s_eff')
self.pyc_connect_des_od('HPcomp.s_Nc', 'HPcomp.s_Nc')
self.pyc_connect_des_od('LPturb.s_PR', 'LPturb.s_PR')
self.pyc_connect_des_od('LPturb.s_Wp', 'LPturb.s_Wp')
self.pyc_connect_des_od('LPturb.s_eff', 'LPturb.s_eff')
self.pyc_connect_des_od('LPturb.s_Np', 'LPturb.s_Np')
self.pyc_connect_des_od('HPturb.s_PR', 'HPturb.s_PR')
self.pyc_connect_des_od('HPturb.s_Wp', 'HPturb.s_Wp')
self.pyc_connect_des_od('HPturb.s_eff', 'HPturb.s_eff')
self.pyc_connect_des_od('HPturb.s_Np', 'HPturb.s_Np')
self.pyc_connect_des_od('inlet.Fl_O:stat:area', 'inlet.area')
self.pyc_connect_des_od('LPcomp.Fl_O:stat:area', 'LPcomp.area')
self.pyc_connect_des_od('HPcomp.Fl_O:stat:area', 'HPcomp.area')
self.pyc_connect_des_od('rec.Fl_O:stat:area', 'rec.area')
self.pyc_connect_des_od('LPturb.Fl_O:stat:area', 'LPturb.area')
self.pyc_connect_des_od('HPturb.Fl_O:stat:area', 'HPturb.area')
super().setup()