def test_network_network_consistency_inlets():
nw = nwk.network(['water'])
merge = cmp.merge('merge')
sink = cmp.sink('label')
a = con.connection(merge, 'out1', sink, 'in1')
nw.add_conns(a)
nw.check_network()
def create_comps(self):
self.inlet = cmp.subsys_interface(label=self.label + '_inlet',
num_inter=self.num_branch + 1)
self.outlet = cmp.subsys_interface(label=self.label + '_outlet',
num_inter=self.num_branch + 1)
self.splitter = cmp.splitter(label=self.label + '_splitter')
self.merge = cmp.merge(label=self.label + '_merge')
self.valve = []
for i in range(self.num_branch):
j = str(i)
self.valve += [
cmp.valve(label=self.label + '_valve_' + j, mode='man')
]
def create_comps(self):
self.num_i = 1
self.num_o = 1
self.inlet = cmp.subsys_interface(label=self.label + '_inlet',
num_inter=self.num_i)
self.outlet = cmp.subsys_interface(label=self.label + '_outlet',
num_inter=self.num_o)
self.splitter = []
self.merge = []
self.heat_ex = []
self.valve = []
self.pipe_feed = []
self.pipe_back = []
for i in range(self.num_consumer - 1):
j = str(i)
self.splitter += [
cmp.splitter(label=self.label + '_splitter_' + j)
]
self.merge += [cmp.merge(label=self.label + '_merge_' + j)]
self.heat_ex += [
cmp.heat_exchanger_simple(label=self.label +
'_heat exchanger_' + j,
mode='man')
]
self.valve += [
cmp.valve(label=self.label + '_valve_' + j, mode='man')
]
self.pipe_feed += [
cmp.pipe(label=self.label + '_pipe feed_' + j,
offdesign=['kA'])
]
self.pipe_back += [
cmp.pipe(label=self.label + '_pipe back_' + j,
offdesign=['kA'])
]
self.heat_ex += [
cmp.heat_exchanger_simple(label=self.label + '_heat exchanger_' +
str(i + 1),
mode='man')
]
nw = nwk.network(fluids=fluids, p_unit='bar', T_unit='C', h_unit='kJ / kg') # %% components # turbine part valve_turb = cmp.valve(label='valve_turb') turbine_hp = cmp.turbine(label='turbine_hp') split = cmp.splitter(label='splitter1') turbine_lp = cmp.turbine(label='turbine_lp') # condenser and preheater condenser = cmp.condenser(label='condenser') preheater = cmp.condenser(label='preheater') valve_pre = cmp.valve(label='valve_pre') valve = cmp.valve(label='valve1') merge = cmp.merge(label='merge1') # feed water pump = cmp.pump(label='pump') steam_generator = cmp.heat_exchanger_simple(label='steam generator') # sources and sinks source = cmp.source(label='source') sink = cmp.sink(label='sink') # for cooling water source_cw = cmp.source(label='source_cw') sink_cw = cmp.sink(label='sink_cw') # %% connections
pu = cmp.pump('pump')
sp = cmp.splitter('splitter', num_out=3)
# bhe:
bhe_name = 'BHE1'
assert 'BHE1' in bhe_name, "BHE should be named with 'BHE1'"
bhe1 = cmp.heat_exchanger_simple(bhe_name)
bhe_name = 'BHE2'
assert 'BHE2' in bhe_name, "BHE should be named with 'BHE2'"
bhe2 = cmp.heat_exchanger_simple(bhe_name)
bhe_name = 'BHE3'
assert 'BHE3' in bhe_name, "BHE should be named with 'BHE3'"
bhe3 = cmp.heat_exchanger_simple(bhe_name)
mg = cmp.merge('merge', num_in=3)
cons = cmp.heat_exchanger_simple('consumer')
# connections
# inlet
fc_pu = con.connection(fc_in, 'out1', pu, 'in1')
pu_sp = con.connection(pu, 'out1', sp, 'in1')
sp_bhe1 = con.connection(sp, 'out1', bhe1, 'in1')
sp_bhe2 = con.connection(sp, 'out2', bhe2, 'in1')
sp_bhe3 = con.connection(sp, 'out3', bhe3, 'in1')
bhe1_mg = con.connection(bhe1, 'out1', mg, 'in1')
bhe2_mg = con.connection(bhe2, 'out1', mg, 'in2')
# %% network
btes = nwk.network(fluids=['water'],
T_unit='C',
p_unit='bar',
h_unit='kJ / kg')
# %% components
# cycle closer (from consumer)
fc_in = cmp.source('from consumer inflow')
fc_out = cmp.sink('from consumer outflow')
sp = cmp.splitter('splitter')
mg = cmp.merge('merge')
# two btes subsystems (pipes in parallel flow):
# 10 pipes for outer ring, 5 pipes inner ring
bo = bp('btes outer', 4)
bi = bp('btes inner', 2)
# circulation pump and consumer
pump = cmp.pump('circulation pump')
cons = cmp.heat_exchanger_simple('consumer')
# %% connections
# inlet
fc_sp = con.connection(fc_in, 'out1', sp, 'in1')
sp_bo = con.connection(sp, 'out1', bo.inlet, 'in1')
def setup_network_individual_offdesign(self):
"""
Set up network for individual offdesign tests.
"""
so = cmp.source('source')
sp = cmp.splitter('splitter', num_out=2)
self.pump1 = cmp.pump('pump 1')
self.sc1 = cmp.solar_collector('collector field 1')
v1 = cmp.valve('valve1')
self.pump2 = cmp.pump('pump 2')
self.sc2 = cmp.solar_collector('collector field 2')
v2 = cmp.valve('valve2')
me = cmp.merge('merge', num_in=2)
si = cmp.sink('sink')
self.pump1.set_attr(eta_s=0.8,
design=['eta_s'],
offdesign=['eta_s_char'])
self.pump2.set_attr(eta_s=0.8,
design=['eta_s'],
offdesign=['eta_s_char'])
self.sc1.set_attr(pr=0.95,
lkf_lin=3.33,
lkf_quad=0.011,
A=1252,
E=700,
Tamb=20,
design=['pr'],
offdesign=['zeta'])
self.sc2.set_attr(pr=0.95,
lkf_lin=3.5,
lkf_quad=0.011,
A=700,
E=800,
Tamb=20,
design=['pr'],
offdesign=['zeta'])
fl = {
'N2': 0,
'O2': 0,
'Ar': 0,
'INCOMP::DowQ': 0,
'H2O': 1,
'NH3': 0,
'CO2': 0,
'CH4': 0
}
inlet = con.connection(so, 'out1', sp, 'in1', T=50, p=3, fluid=fl)
outlet = con.connection(me, 'out1', si, 'in1', p=3)
sp_p1 = con.connection(sp, 'out1', self.pump1, 'in1')
p1_sc1 = con.connection(self.pump1, 'out1', self.sc1, 'in1')
self.sc1_v1 = con.connection(self.sc1, 'out1', v1, 'in1', p=3.1, T=90)
v1_me = con.connection(v1, 'out1', me, 'in1')
self.sp_p2 = con.connection(sp, 'out2', self.pump2, 'in1')
self.p2_sc2 = con.connection(self.pump2, 'out1', self.sc2, 'in1')
self.sc2_v2 = con.connection(self.sc2, 'out1', v2, 'in1', p=3.1, m=0.1)
v2_me = con.connection(v2, 'out1', me, 'in2')
self.nw.add_conns(inlet, outlet, sp_p1, p1_sc1, self.sc1_v1, v1_me,
self.sp_p2, self.p2_sc2, self.sc2_v2, v2_me)
# define unit systems and fluid property ranges
nw = nwk.network(fluids=fluid_list, p_unit='bar', T_unit='C',
p_range=[0.5, 10], T_range=[10, 1200])
# %% components
# sinks & sources
amb = cmp.source('ambient')
sf = cmp.source('fuel')
fg = cmp.sink('flue gas outlet')
cw_in1 = cmp.source('cooling water inlet1')
cw_in2 = cmp.source('cooling water inlet2')
cw_out1 = cmp.sink('cooling water outlet1')
cw_out2 = cmp.sink('cooling water outlet2')
split = cmp.splitter('splitter')
merge = cmp.merge('merge')
# combustion chamber
chp = cmp.cogeneration_unit(label='cogeneration unit')
# %% connections
amb_comb = con.connection(amb, 'out1', chp, 'in3')
sf_comb = con.connection(sf, 'out1', chp, 'in4')
comb_fg = con.connection(chp, 'out3', fg, 'in1')
nw.add_conns(sf_comb, amb_comb, comb_fg)
cw1_chp1 = con.connection(cw_in1, 'out1', chp, 'in1')
cw2_chp2 = con.connection(cw_in2, 'out1', chp, 'in2')
def mass_flow():
mf = parameters_data.Q/(4.19*(parameters_data.Td - parameters_data.Tc))
e_w = (hlp.h_pT(100000, 318, 'H2O'))
e_c = (hlp.h_pT(100000, 281, 'H2O'))
mfc = (100-(e_w*mf))/(e_c-e_w)
mfw = mf-mfc
return mfc, mfw
mass_flow_data = mass_flow()
hw_in = cmp.source('hot water')
ww_out = cmp.sink('warm water out')
cc_in = cmp.source('cold water in')
m = cmp.merge('merge', num_in=2)
# connections
lin1 = con.connection(hw_in, 'out1', m, 'in1')
lin2 = con.connection(cc_in, 'out1', m, 'in2')
lin3 = con.connection(m, 'out1', ww_out, 'in1')
nw.add_conns(lin1, lin2, lin3)
# connection parametrization
lin1.set_attr(fluid={'H2O': 1}, T=parameters_data.Tw, m=mass_flow_data[0])
lin2.set_attr(fluid={'H2O': 1}, T=parameters_data.Tc, m=mass_flow_data[1])
lin3.set_attr(T=parameters_data.Td)
# solve
nw.solve('design')