def setup_pipeline_network(self, fluid_list):
"""Setup a pipeline network."""
self.nw = network(fluids=fluid_list)
self.nw.set_attr(p_unit='bar', T_unit='C', iterinfo=False)
# %% components
# main components
pu = pump('pump')
pi = pipe('pipeline')
es = heat_exchanger_simple('energy balance closing')
closer = cycle_closer('cycle closer')
pu_pi = connection(pu, 'out1', pi, 'in1')
pi_es = connection(pi, 'out1', es, 'in1')
es_closer = connection(es, 'out1', closer, 'in1')
closer_pu = connection(closer, 'out1', pu, 'in1')
self.nw.add_conns(pu_pi, pi_es, es_closer, closer_pu)
# %% parametrization of components
pu.set_attr(eta_s=0.7)
pi.set_attr(pr=0.95, L=100, ks=1e-5, D='var', Q=0)
es.set_attr(pr=1)
# %% parametrization of connections
pu_pi.set_attr(p=20, T=100, m=10, fluid={self.nw.fluids[0]: 1})
# %% solving
self.nw.solve('design')
def setup_clausius_rankine(self, fluid_list):
"""Setup a Clausius-Rankine cycle."""
self.nw = network(fluids=fluid_list)
self.nw.set_attr(p_unit='bar', T_unit='C', iterinfo=False)
# %% components
# main components
turb = turbine('turbine')
con = condenser('condenser')
pu = pump('pump')
steam_generator = heat_exchanger_simple('steam generator')
closer = cycle_closer('cycle closer')
# cooling water
so_cw = source('cooling water inlet')
si_cw = sink('cooling water outlet')
# %% connections
# main cycle
fs_in = connection(closer, 'out1', turb, 'in1', label='livesteam')
ws = connection(turb, 'out1', con, 'in1', label='wastesteam')
cond = connection(con, 'out1', pu, 'in1', label='condensate')
fw = connection(pu, 'out1', steam_generator, 'in1', label='feedwater')
fs_out = connection(steam_generator, 'out1', closer, 'in1')
self.nw.add_conns(fs_in, ws, cond, fw, fs_out)
# cooling water
cw_in = connection(so_cw, 'out1', con, 'in2')
cw_out = connection(con, 'out2', si_cw, 'in1')
self.nw.add_conns(cw_in, cw_out)
# %% parametrization of components
turb.set_attr(eta_s=0.9)
con.set_attr(pr1=1, pr2=0.99, ttd_u=5)
pu.set_attr(eta_s=0.7)
steam_generator.set_attr(pr=0.9)
# %% parametrization of connections
fs_in.set_attr(p=100, T=500, m=100, fluid={self.nw.fluids[0]: 1})
cw_in.set_attr(T=20, p=5, fluid={self.nw.fluids[0]: 1})
cw_out.set_attr(T=30)
# %% solving
self.nw.solve('design')
mass_flow_rate_brine = 190.1
mass_flow_rate_steam = 20.4
T_brine_in = 146.6
T_reinjection = 69.1
# cooling air part
mass_flow_rate_air = 6142
T_air = -4.7
p_air = 0.61
# calculation secondary variables
p_before_turbine = PropsSI('P', 'T', T_brine_in + 273.15 - 28, 'Q', 1,
'Isopentane') / 1e5
p_steam_in = PropsSI('P', 'T', T_brine_in + 273.15, 'Q', 1, 'water') / 1e5
# main components
evaporator = evaporator('evaporator')
pump_c = pump('condensate pump')
merge = merge('geo-fluid merge point')
preheater = heat_exchanger('preheater')
turbine = turbine('turbine')
ihe = heat_exchanger('internal heat exchanger')
condenser = condenser('condenser')
pump = pump('feeding pump')
# working fluid
source_wf = source('working fluid source')
sink_wf = sink('working fluid sink')
close_cycle = cycle_closer('cycle closer before preheater')
#brine
source_s = source('steam source')
source_b = source('brine source')
sink_s = sink('steam sink')
sink_b = sink('brine sink')
from CoolProp.CoolProp import PropsSI
import numpy as np
from tespy.tools import logger
import logging
mypath = logger.define_logging(
log_path=True, log_version=True, timed_rotating={'backupCount': 4},
screen_level=logging.WARNING, screen_datefmt = "no_date")
fluids = ['water', 'Isopentane']
nw = network(fluids=fluids)
nw.set_attr(p_unit='bar', T_unit='C', h_unit='kJ / kg')
# components
# main components
evaporator = evaporator('evaporator')
pump = pump('condensate pump')
merge = merge('geo-fluid merge point')
# working fluid
source_wf = source('working fluid source')
sink_wf = sink('working fluid sink')
#brine
source_s = source('steam source')
source_b = source('brine source')
sink_s = sink('steam sink')
sink_b = sink('brine sink')
# connections
# main cycle
scr_s_merge = connection(source_s, 'out1', merge, 'in1')
scr_b_merge = connection(source_b, 'out1', merge, 'in2')
def __init__(self):
self.nw = network(
fluids=['BICUBIC::water'],
p_unit='bar', T_unit='C', h_unit='kJ / kg',
iterinfo=False)
# components
# main cycle
eco = heat_exchanger_simple('economizer')
eva = heat_exchanger_simple('evaporator')
sup = heat_exchanger_simple('superheater')
cc = cycle_closer('cycle closer')
hpt = turbine('high pressure turbine')
sp1 = splitter('splitter 1', num_out=2)
mpt = turbine('mid pressure turbine')
sp2 = splitter('splitter 2', num_out=2)
lpt = turbine('low pressure turbine')
con = condenser('condenser')
pu1 = pump('feed water pump')
fwh1 = condenser('feed water preheater 1')
fwh2 = condenser('feed water preheater 2')
dsh = desuperheater('desuperheater')
me2 = merge('merge2', num_in=2)
pu2 = pump('feed water pump 2')
pu3 = pump('feed water pump 3')
me = merge('merge', num_in=2)
# cooling water
cwi = source('cooling water source')
cwo = sink('cooling water sink')
# connections
# main cycle
cc_hpt = connection(cc, 'out1', hpt, 'in1', label='feed steam')
hpt_sp1 = connection(hpt, 'out1', sp1, 'in1', label='extraction1')
sp1_mpt = connection(sp1, 'out1', mpt, 'in1', state='g')
mpt_sp2 = connection(mpt, 'out1', sp2, 'in1', label='extraction2')
sp2_lpt = connection(sp2, 'out1', lpt, 'in1')
lpt_con = connection(lpt, 'out1', con, 'in1')
con_pu1 = connection(con, 'out1', pu1, 'in1')
pu1_fwh1 = connection(pu1, 'out1', fwh1, 'in2')
fwh1_me = connection(fwh1, 'out2', me, 'in1', state='l')
me_fwh2 = connection(me, 'out1', fwh2, 'in2', state='l')
fwh2_dsh = connection(fwh2, 'out2', dsh, 'in2', state='l')
dsh_me2 = connection(dsh, 'out2', me2, 'in1')
me2_eco = connection(me2, 'out1', eco, 'in1', state='l')
eco_eva = connection(eco, 'out1', eva, 'in1')
eva_sup = connection(eva, 'out1', sup, 'in1')
sup_cc = connection(sup, 'out1', cc, 'in1')
self.nw.add_conns(cc_hpt, hpt_sp1, sp1_mpt, mpt_sp2, sp2_lpt,
lpt_con, con_pu1, pu1_fwh1, fwh1_me, me_fwh2,
fwh2_dsh, dsh_me2, me2_eco, eco_eva, eva_sup, sup_cc)
# cooling water
cwi_con = connection(cwi, 'out1', con, 'in2')
con_cwo = connection(con, 'out2', cwo, 'in1')
self.nw.add_conns(cwi_con, con_cwo)
# preheating
sp1_dsh = connection(sp1, 'out2', dsh, 'in1')
dsh_fwh2 = connection(dsh, 'out1', fwh2, 'in1')
fwh2_pu2 = connection(fwh2, 'out1', pu2, 'in1')
pu2_me2 = connection(pu2, 'out1', me2, 'in2')
sp2_fwh1 = connection(sp2, 'out2', fwh1, 'in1')
fwh1_pu3 = connection(fwh1, 'out1', pu3, 'in1')
pu3_me = connection(pu3, 'out1', me, 'in2')
self.nw.add_conns(sp1_dsh, dsh_fwh2, fwh2_pu2, pu2_me2,
sp2_fwh1, fwh1_pu3, pu3_me)
# busses
# power bus
self.power = bus('power')
self.power.add_comps(
{'comp': hpt, 'char': -1}, {'comp': mpt, 'char': -1},
{'comp': lpt, 'char': -1}, {'comp': pu1, 'char': -1},
{'comp': pu2, 'char': -1}, {'comp': pu3, 'char': -1})
# heating bus
self.heat = bus('heat')
self.heat.add_comps(
{'comp': eco, 'char': 1}, {'comp': eva, 'char': 1},
{'comp': sup, 'char': 1})
self.nw.add_busses(self.power, self.heat)
# parametrization
# components
hpt.set_attr(eta_s=0.9)
mpt.set_attr(eta_s=0.9)
lpt.set_attr(eta_s=0.9)
pu1.set_attr(eta_s=0.8)
pu2.set_attr(eta_s=0.8)
pu3.set_attr(eta_s=0.8)
eco.set_attr(pr=0.99)
eva.set_attr(pr=0.99)
sup.set_attr(pr=0.99)
con.set_attr(pr1=0.99, pr2=0.99, ttd_u=5)
fwh1.set_attr(pr1=0.99, pr2=0.99, ttd_u=5)
fwh2.set_attr(pr1=0.99, pr2=0.99, ttd_u=5)
dsh.set_attr(pr1=0.99, pr2=0.99)
# connections
eco_eva.set_attr(x=0)
eva_sup.set_attr(x=1)
cc_hpt.set_attr(m=200, T=650, p=100, fluid={'water': 1})
hpt_sp1.set_attr(p=20)
mpt_sp2.set_attr(p=3)
lpt_con.set_attr(p=0.05)
cwi_con.set_attr(T=20, p=10, fluid={'water': 1})
mass_flow_rate_air = 6142
T_air = -4.7
p_air = 0.61
# calculation secondary variables
p_before_turbine = PropsSI('P', 'T', T_brine_in + 273.15 - 26, 'Q', 1, 'Isopentane')/1e5
# basic network
nw = network(fluids=fluids)
nw.set_attr(p_unit='bar', T_unit='C', h_unit='kJ / kg')
# main components
condenser = condenser('condenser')
ihe = heat_exchanger('internal heat exchanger')
pump = pump('feeding pump')
turbine = turbine('turbine')
preh = heat_exchanger('preheater')
evap = heat_exchanger('evaporator')
# cooling air
source_ca = source('cooling air source')
sink_ca = sink('cooling air sink')
#brine
source_b = source('brine source')
sink_b = sink('brine sink')
# working fluid
close_cycle = cycle_closer('cycle closer before turbine')
nw = network(fluids=['water', 'NH3'], T_unit='C', p_unit='bar',
h_unit='kJ / kg', m_unit='kg / s')
# %% components
# sources & sinks
c_in = source('coolant in')
cons_closer = cycle_closer('consumer cycle closer')
va = sink('valve')
# consumer system
cd = condenser('condenser')
rp = pump('recirculation pump')
cons = heat_exchanger_simple('consumer')
# %% connections
# consumer system
c_in_cd = connection(c_in, 'out1', cd, 'in1')
close_rp = connection(cons_closer, 'out1', rp, 'in1')
rp_cd = connection(rp, 'out1', cd, 'in2')
cd_cons = connection(cd, 'out2', cons, 'in1')
cons_close = connection(cons, 'out1', cons_closer, 'in1')
nw.add_conns(c_in_cd, close_rp, rp_cd, cd_cons, cons_close)
mass_flow_rate_brine = 3.4199e2
T_brine_in = 146.6
p_brine_in = 9.4
T_brine_out = 69.1
# basic network
nw = network(fluids=fluids)
nw.set_attr(p_unit='bar', T_unit='C', h_unit='kJ / kg')
# main components
cond1 = condenser('condenser 1')
cond2 = condenser('condenser 2')
ihe1 = heat_exchanger('internal heat exchanger 1')
ihe2 = heat_exchanger('internal heat exchanger 2')
pu1 = pump('feeding pump 1')
pu2 = pump('feeding pump 2')
turb1 = turbine('turb 1')
turb2 = turbine('turb 2')
val1 = valve('control valve 1')
val2 = valve('control valve 2')
spl = splitter('main cycle splitter')
mer = merge('main cycle merge')
preh = heat_exchanger('preheater')
evap = heat_exchanger('evaporator')
# cooling air
source_ca_1 = source('cooling air source 1')
sink_ca_1 = sink('cooling air sink 1')
# sources & sinks
cool_closer = cycle_closer('coolant cycle closer')
cons_closer = cycle_closer('consumer cycle closer')
amb_in = source('source ambient')
amb_out = sink('sink ambient')
ic_in = source('source intercool')
ic_out = sink('sink intercool')
# consumer system
cd = condenser('condenser')
rp = pump('recirculation pump')
cons = heat_exchanger_simple('consumer')
cp1 = sink('compressor 1')
# consumer system
cd = condenser('condenser')
rp = pump('recirculation pump')
cons = heat_exchanger_simple('consumer')
# evaporator system
va = valve('valve')
dr = drum('drum')
ev = heat_exchanger('evaporator')
pump,
splitter,
merge,
heat_exchanger_simple,
cycle_closer,
)
from tespy.tools import char_line, dc_cc
import numpy as np
# %% network
btes = network(fluids=["water"], T_unit="K", p_unit="bar", h_unit="kJ / kg")
# %% components
fc = cycle_closer("cycle closer")
pu = pump("pump")
sp = splitter("splitter", num_out=3)
# bhe:
bhe1 = heat_exchanger_simple("BHE1")
bhe2 = heat_exchanger_simple("BHE2")
bhe3 = heat_exchanger_simple("BHE3")
mg = merge("merge", num_in=3)
cons = heat_exchanger_simple("consumer")
## components paramerization
# pump
# flow_char
# provide volumetric flow in m^3 / s
x = np.array(
# gas turbine part
air_source = source('air source')
air_compressor = compressor('air compressor')
combustion_chamber = combustion_chamber('combustion chamber')
fuel_source = source('fuel source')
gas_turbine = turbine('gas turbine')
steam_generator = heat_exchanger('steamgenerator')
exhaust_gas = sink('exhaust gas')
# steam turbine part
fs_source = source('steam source')
steam_turbine = turbine('steam turbine')
dh_heat_exchanger = heat_exchanger('district heating heat exchanger')
pump = pump('pump')
fs_sink = sink('steam sink')
steam_cycle_closer = cycle_closer('steam cycle closer')
# district heating part
dh_source = source('district heating source')
dh_sink = sink('district heating sink')
# %% connections
# gas turbine part
air_source.air_compressor = connection(air_source, 'out1', air_compressor,
'in1')
air_compressor.combustion_chamber = connection(air_compressor, 'out1',
combustion_chamber, 'in1')
class HeatPump(object):
# define the structure of heat pump
# %% network
nw = network(fluids=['water', 'NH3', 'air'],
T_unit='C',
p_unit='bar',
h_unit='kJ / kg',
m_unit='kg / s')
# %% components
# sources & sinks
cc = cycle_closer('coolant cycle closer')
cb = source('consumer back flow')
cf = sink('consumer feed flow')
amb = source('ambient air')
amb_out1 = sink('sink ambient 1')
amb_out2 = sink('sink ambient 2')
# ambient air system
sp = splitter('splitter')
pu = pump('pump')
# consumer system
cd = condenser('condenser')
dhp = pump('district heating pump')
cons = heat_exchanger_simple('consumer')
# evaporator system
ves = valve('valve')
dr = drum('drum')
ev = heat_exchanger('evaporator')
su = heat_exchanger('superheater')
erp = pump('evaporator reciculation pump')
# compressor-system
cp1 = compressor('compressor 1')
cp2 = compressor('compressor 2')
ic = heat_exchanger('intercooler')
# %% connections
# consumer system
c_in_cd = connection(cc, 'out1', cd, 'in1')
cb_dhp = connection(cb, 'out1', dhp, 'in1')
dhp_cd = connection(dhp, 'out1', cd, 'in2')
cd_cons = connection(cd, 'out2', cons, 'in1')
cons_cf = connection(cons, 'out1', cf, 'in1')
nw.add_conns(c_in_cd, cb_dhp, dhp_cd, cd_cons, cons_cf)
# connection condenser - evaporator system
cd_ves = connection(cd, 'out1', ves, 'in1')
nw.add_conns(cd_ves)
# evaporator system
ves_dr = connection(ves, 'out1', dr, 'in1')
dr_erp = connection(dr, 'out1', erp, 'in1')
erp_ev = connection(erp, 'out1', ev, 'in2')
ev_dr = connection(ev, 'out2', dr, 'in2')
dr_su = connection(dr, 'out2', su, 'in2')
nw.add_conns(ves_dr, dr_erp, erp_ev, ev_dr, dr_su)
amb_p = connection(amb, 'out1', pu, 'in1')
p_sp = connection(pu, 'out1', sp, 'in1')
sp_su = connection(sp, 'out1', su, 'in1')
su_ev = connection(su, 'out1', ev, 'in1')
ev_amb_out = connection(ev, 'out1', amb_out1, 'in1')
nw.add_conns(amb_p, p_sp, sp_su, su_ev, ev_amb_out)
# connection evaporator system - compressor system
su_cp1 = connection(su, 'out2', cp1, 'in1')
nw.add_conns(su_cp1)
# compressor-system
cp1_he = connection(cp1, 'out1', ic, 'in1')
he_cp2 = connection(ic, 'out1', cp2, 'in1')
cp2_c_out = connection(cp2, 'out1', cc, 'in1')
sp_ic = connection(sp, 'out2', ic, 'in2')
ic_out = connection(ic, 'out2', amb_out2, 'in1')
nw.add_conns(cp1_he, he_cp2, sp_ic, ic_out, cp2_c_out)
def __init__(self, q, eff, Temp):
r"""
:param Temp:
:param q: q output
:param eff: efficient of each part in pump
"""
self.q = q
self.eff = eff
self.Temp = Temp
def caculation(self):
self.set_attr()
HeatPump.nw.solve('design')
P = [
HeatPump.cp1.P.val, HeatPump.cp2.P.val, HeatPump.erp.P.val,
HeatPump.pu.P.val
]
P_total = sum(map(abs, P))
P = list(map(abs, P))
COP = self.q / P_total
# T = [HeatPump.su_cp1.T.val, HeatPump.cp2_c_out.T.val, HeatPump.cd_ves.T.val, HeatPump.su_ev.T.val]
# p = [HeatPump.su_cp1.p.val, HeatPump.cp2_c_out.p.val, HeatPump.cd_ves.p.val, HeatPump.su_ev.p.val,
# HeatPump.cp1_he.p.val]
return P, P_total, COP
def set_attr(self):
r"""
# %% set the attribution of the heat pump
:return: heat output of the heat pump
"""
HeatPump.cd.set_attr(pr1=0.99,
pr2=0.99,
ttd_u=15,
design=['pr2', 'ttd_u'],
offdesign=['zeta2', 'kA'])
HeatPump.dhp.set_attr(eta_s=self.eff,
design=['eta_s'],
offdesign=['eta_s_char'])
HeatPump.cons.set_attr(pr=0.99, design=['pr'], offdesign=['zeta'])
# water pump
HeatPump.pu.set_attr(eta_s=self.eff,
design=['eta_s'],
offdesign=['eta_s_char'])
# evaporator system
kA_char1 = ldc('heat exchanger', 'kA_char1', 'DEFAULT', char_line)
kA_char2 = ldc('heat exchanger', 'kA_char2', 'EVAPORATING FLUID',
char_line)
HeatPump.ev.set_attr(pr1=0.98,
pr2=0.99,
ttd_l=5,
kA_char1=kA_char1,
kA_char2=kA_char2,
design=['pr1', 'ttd_l'],
offdesign=['zeta1', 'kA'])
HeatPump.su.set_attr(pr1=0.98,
pr2=0.99,
ttd_u=2,
design=['pr1', 'pr2', 'ttd_u'],
offdesign=['zeta1', 'zeta2', 'kA'])
HeatPump.erp.set_attr(eta_s=self.eff,
design=['eta_s'],
offdesign=['eta_s_char'])
# compressor system
HeatPump.cp1.set_attr(eta_s=self.eff,
design=['eta_s'],
offdesign=['eta_s_char'])
HeatPump.cp2.set_attr(eta_s=self.eff,
pr=3,
design=['eta_s'],
offdesign=['eta_s_char'])
HeatPump.ic.set_attr(pr1=0.99,
pr2=0.98,
design=['pr1', 'pr2'],
offdesign=['zeta1', 'zeta2', 'kA'])
# %% connection parametrization
# condenser system
HeatPump.c_in_cd.set_attr(fluid={'air': 0, 'NH3': 1, 'water': 0})
HeatPump.cb_dhp.set_attr(T=20,
p=10,
fluid={
'air': 0,
'NH3': 0,
'water': 1
})
HeatPump.cd_cons.set_attr(T=self.Temp)
HeatPump.cons_cf.set_attr(h=ref(HeatPump.cb_dhp, 1, 0),
p=ref(HeatPump.cb_dhp, 1, 0))
# evaporator system cold side
HeatPump.erp_ev.set_attr(m=ref(HeatPump.ves_dr, 1.25, 0), p0=5)
HeatPump.su_cp1.set_attr(p0=5, h0=1700)
# evaporator system hot side
# pumping at constant rate in partload
HeatPump.amb_p.set_attr(T=12,
p=2,
fluid={
'air': 0,
'NH3': 0,
'water': 1
},
offdesign=['v'])
HeatPump.sp_su.set_attr(offdesign=['v'])
HeatPump.ev_amb_out.set_attr(p=2, T=9, design=['T'])
# compressor-system
HeatPump.he_cp2.set_attr(Td_bp=5, p0=20, design=['Td_bp'])
HeatPump.ic_out.set_attr(T=15, design=['T'])
# %% key paramter
HeatPump.cons.set_attr(Q=self.q)
import numpy as np
# %% network
btes = network(fluids=['water'],
T_unit='K',
p_unit='bar',
h_unit='kJ / kg',
T_range=[273.25, 373.15],
p_range=[1, 20],
h_range=[1, 1000])
# %% components
fc_in = source('from consumer inflow')
fc_out = sink('from consumer outflow')
pu = pump('pump')
sp = splitter('splitter', num_out=3)
# bhe:
bhe_name = 'BHE1'
assert 'BHE1' in bhe_name, "BHE should be named with 'BHE1'"
bhe1 = heat_exchanger_simple(bhe_name)
bhe_name = 'BHE2'
assert 'BHE2' in bhe_name, "BHE should be named with 'BHE2'"
bhe2 = heat_exchanger_simple(bhe_name)
bhe_name = 'BHE3'
assert 'BHE3' in bhe_name, "BHE should be named with 'BHE3'"
bhe3 = heat_exchanger_simple(bhe_name)
mg = merge('merge', num_in=3)
# sources & sinks
cc = cycle_closer('coolant cycle closer')
cb = source('consumer back flow')
cf = sink('consumer feed flow')
amb = source('ambient air')
amb_out1 = sink('sink ambient 1')
amb_out2 = sink('sink ambient 2')
# ambient air system
sp = splitter('splitter')
fan = compressor('fan')
# consumer system
cd = condenser('condenser')
dhp = pump('district heating pump')
cons = heat_exchanger_simple('consumer')
# evaporator system
ves = valve('valve')
dr = drum('drum')
ev = heat_exchanger('evaporator')
su = heat_exchanger('superheater')
erp = pump('evaporator reciculation pump')
# compressor-system
cp1 = compressor('compressor 1')
cp2 = compressor('compressor 2')
ic = heat_exchanger('intercooler')
CH4 = source('fuel source')
air = source('ambient air')
# waste heat recovery
suph = heat_exchanger('superheater')
evap = heat_exchanger('evaporator')
dr = drum('drum')
eco = heat_exchanger('economizer')
dh_whr = heat_exchanger('waste heat recovery')
ch = sink('chimney')
# steam turbine part
turb = turbine('steam turbine')
cond = condenser('condenser')
pu = pump('feed water pump')
cc = cycle_closer('ls cycle closer')
# district heating
dh_in = source('district heating backflow')
dh_out = sink('district heating feedflow')
# %% connections
# gas turbine part
c_in = connection(air, 'out1', comp, 'in1')
c_out = connection(comp, 'out1', c_c, 'in1')
fuel = connection(CH4, 'out1', c_c, 'in2')
gt_in = connection(c_c, 'out1', g_turb, 'in1')
gt_out = connection(g_turb, 'out1', suph, 'in1')
nw.add_conns(c_in, c_out, fuel, gt_in, gt_out)
def __init__(self, working_fluid):
self.working_fluid = working_fluid
fluids = ['water', self.working_fluid, 'air']
self.nw = network(fluids=fluids)
self.nw.set_attr(p_unit='bar', T_unit='C', h_unit='kJ / kg')
# geo parameters
geo_mass_flow = 210
geo_steam_share = 0.1
T_brine_in = 144.8
T_reinjection = 70.8
# ambient parameters
T_amb = 0
p_amb = 1
# main components
geo_steam = source('steam source')
geo_brine = source('brine source')
geo_reinjection = sink('reinjection well')
air_in = source('ambient air source')
air_out = sink('ambient air sink')
air_cond = condenser('main condenser')
orc_cc = cycle_closer('orc cycle closer')
evap_steam = condenser('steam evaporator')
evap_splitter = splitter('splitter evaporation')
evap_merge = merge('merge evaporation')
evap_steam = condenser('steam evaporator')
geo_steam_pump = pump('geosteam condensate pump')
evap_brine = heat_exchanger('brine evaporator')
dr = drum('drum')
eco = heat_exchanger('economiser')
feed_water_pump = pump('feed water pump')
geo_merge = merge('brine merge')
tur = turbine('turbine')
ls_valve = valve('live steam valve')
ihe = heat_exchanger('internal heat exchanger')
# busses
power_bus = bus('power output')
power_bus.add_comps({
'c': tur,
'char': -1
}, {
'c': feed_water_pump,
'char': -1
}, {
'c': geo_steam_pump,
'char': -1
})
geothermal_bus = bus('thermal input')
geothermal_bus.add_comps({
'c': eco,
'char': -1
}, {
'c': evap_brine,
'char': -1
}, {
'c': evap_steam,
'char': -1
})
self.nw.add_busses(power_bus, geothermal_bus)
# turbine to condenser
ls_in = connection(orc_cc, 'out1', ls_valve, 'in1')
lsv_tur = connection(ls_valve, 'out1', tur, 'in1')
tur_ihe = connection(tur, 'out1', ihe, 'in1')
ihe_cond = connection(ihe, 'out1', air_cond, 'in1')
self.nw.add_conns(ls_in, lsv_tur, tur_ihe, ihe_cond)
# condenser to steam generator
cond_fwp = connection(air_cond, 'out1', feed_water_pump, 'in1')
fwp_ihe = connection(feed_water_pump, 'out1', ihe, 'in2')
self.nw.add_conns(cond_fwp, fwp_ihe)
# steam generator
ihe_eco = connection(ihe, 'out2', eco, 'in2')
eco_dr = connection(eco, 'out2', dr, 'in1')
dr_esp = connection(dr, 'out1', evap_splitter, 'in1')
esp_eb = connection(evap_splitter, 'out1', evap_brine, 'in2')
esp_es = connection(evap_splitter, 'out2', evap_steam, 'in2')
eb_em = connection(evap_brine, 'out2', evap_merge, 'in1')
es_em = connection(evap_steam, 'out2', evap_merge, 'in2')
em_dr = connection(evap_merge, 'out1', dr, 'in2')
ls_out = connection(dr, 'out2', orc_cc, 'in1')
self.nw.add_conns(ihe_eco, eco_dr, dr_esp, esp_eb, esp_es, eb_em,
es_em, em_dr, ls_out)
# air cold side
air_cold = connection(air_in, 'out1', air_cond, 'in2')
air_hot = connection(air_cond, 'out2', air_out, 'in1')
self.nw.add_conns(air_cold, air_hot)
# geo source
gs_es = connection(geo_steam,
'out1',
evap_steam,
'in1',
label='geosteam')
es_gsp = connection(evap_steam, 'out1', geo_steam_pump, 'in1')
gsp_gm = connection(geo_steam_pump, 'out1', geo_merge, 'in1')
gb_eb = connection(geo_brine,
'out1',
evap_brine,
'in1',
label='geobrine')
eb_gm = connection(evap_brine, 'out1', geo_merge, 'in2')
self.nw.add_conns(gs_es, es_gsp, gsp_gm, gb_eb, eb_gm)
gm_eco = connection(geo_merge, 'out1', eco, 'in1')
eco_gr = connection(eco,
'out1',
geo_reinjection,
'in1',
label='reinjection')
self.nw.add_conns(gm_eco, eco_gr)
# fluid settings
ihe_eco.set_attr(fluid={self.working_fluid: 1, 'air': 0, 'water': 0})
air_cold.set_attr(fluid={self.working_fluid: 0, 'air': 1, 'water': 0})
gs_es.set_attr(fluid={self.working_fluid: 0, 'air': 0, 'water': 1})
gb_eb.set_attr(fluid={self.working_fluid: 0, 'air': 0, 'water': 1})
# connection parameters
ls_stable_p0 = PSI('P', 'T', T_brine_in + 273.15, 'Q', 1,
self.working_fluid) / 1e5
lsv_tur.set_attr(p0=ls_stable_p0)
ws_stable_h0 = (
PSI('H', 'T', T_amb + 273.15, 'Q', 1, self.working_fluid) + 0.5 *
(PSI('H', 'T', T_brine_in + 273.15, 'Q', 1, self.working_fluid) -
PSI('H', 'T', T_amb + 273.15, 'Q', 1, self.working_fluid))) / 1e3
tur_ihe.set_attr(h=ws_stable_h0)
ihe_cond.set_attr(
Td_bp=2,
design=['Td_bp'],
p0=PSI('P', 'T', T_amb + 273.15, 'Q', 1, self.working_fluid) / 1e5)
fwp_ihe.set_attr(h=ref(cond_fwp, 1, 1e3))
# steam generator
gs_es.set_attr(m=geo_mass_flow * geo_steam_share,
T=T_brine_in,
x=1,
p0=5)
gb_eb.set_attr(m=geo_mass_flow * (1 - geo_steam_share),
T=T_brine_in,
x=0)
em_dr.set_attr()
eb_em.set_attr(x=0.5)
es_em.set_attr(x=0.5, design=['x'])
eb_gm.set_attr(T=T_brine_in - 20)
eco_dr.set_attr(Td_bp=-2)
# main condenser
air_cold.set_attr(p=p_amb, T=T_amb)
air_hot.set_attr(T=15)
# component parameters
# turbines
tur.set_attr(design=['eta_s'], offdesign=['cone', 'eta_s_char'])
ls_valve.set_attr(pr=1, design=['pr'])
# condensing
ihe.set_attr(pr1=1, pr2=1, offdesign=['kA_char'])
air_cond.set_attr(pr1=1,
pr2=1,
ttd_u=10,
design=['ttd_u'],
offdesign=['kA_char'])
feed_water_pump.set_attr(design=['eta_s'], offdesign=['eta_s_char'])
# steam generator
evap_steam.set_attr(
pr1=0.99,
offdesign=['kA_char']) # no pr2 due to drum pressure balance
evap_brine.set_attr(
pr1=1, ttd_l=10,
offdesign=['kA_char']) # no pr2 due to drum pressure balance
eco.set_attr(pr1=1, pr2=1)
geo_steam_pump.set_attr(eta_s=0.75,
design=['eta_s'],
offdesign=['eta_s_char'])
self.nw.set_attr(iterinfo=False)
self.nw.solve('design')
self.nw.print_results()
tur.set_attr(eta_s=0.9)
feed_water_pump.set_attr(eta_s=0.75)
tur_ihe.set_attr(h=None)
fwp_ihe.set_attr(h=None)
eb_gm.set_attr(T=None)
fuel_source = source('fuel source')
combustion_air_source = source('ambient air')
rauchgas = sink('Rauchgas')
steam_generator_gas = heat_exchanger('Abhitzekessel')
# steam turbine part
fs_source = source('Frischdampf')
hp_turbine = turbine('Hochdruck Turbine')
splitter_1 = splitter('splitter hp-extraction')
lp_turbine = turbine('low pressure turbine')
merge = merge('Merge vor Kondensator')
condenser_stp = condenser('Kondensator')
pump = pump('Speisewasserpumpe')
# DH Network
dh_source = source('District Heating source')
dh_sink = sink('dh sink')
valve_1 = valve('valve 1')
dh_heater_2 = heat_exchanger('Dh_heater_2')
valve_2 = valve('valve 2')
dh_heater = condenser('dh heater 1')
# Kuehlwasser
cw_source = source('Kuehlwasser Einlass')
cw_sink = sink('Kuehlwasser Austritt')
