def create_comps(self):
self.comps['splitter'] = splitter(self.label + '_splitter')
self.comps['merge'] = merge(self.label + '_merge')
for i in range(self.num_branch):
j = str(i)
self.comps['valve_' + j] = valve(self.label + '_valve_' + j)
def create_comps(self):
for i in range(self.num_consumer - 1):
j = str(i)
self.comps['feed_' + j] = pipe(self.label + '_pipe feed_' + j)
self.comps['return_' + j] = pipe(self.label + '_pipe return_' + j)
for i in range(self.num_consumer):
j = str(i)
self.comps['splitter_' + j] = splitter(self.label + '_splitter_' +
j)
self.comps['merge_' + j] = merge(self.label + '_merge_' + j)
self.comps['consumer_' +
j] = heat_exchanger_simple(self.label + '_consumer_' +
j)
self.comps['valve_' + j] = valve(self.label + '_valve_' + j)
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)
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')
# %% connections
# consumer system
cf = sink('consumer feed flow')
lt_si = sink('low temp sink')
lt_so = source('low temp source')
# low temp water system
pu = pump('pump')
# consumer system
cd = condenser('condenser')
dhp = pump('district heating pump')
cons = heat_exchanger_simple('consumer')
# evaporator system
va = valve('valve')
dr = drum('drum')
ev = heat_exchanger('evaporator')
erp = pump('evaporator reciculation pump')
# compressor-system
cp = compressor('compressor')
# %% connections
# consumer system
c_in_cd = connection(cc, 'out1', cd, 'in1')
cb_dhp = connection(cb, 'out1', dhp, '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)
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')
source_ca_2 = source('cooling air source 2')
sink_ca_2 = sink('cooling air sink 2')
#brine
# 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')
# vorläufige ZU Source und Sink
w = source('ZU Dampf Kalt')
z = sink('ZU Dampf Warm')
# Frischdampf-Senke
fs_sink = sink('Frischdampf Senke')
from tespy.connections import connection, bus, ref
import matplotlib.pyplot as plt
import pandas as pd
import numpy as np
# %% network
fluids = ['water']
nw = network(fluids=fluids, p_unit='bar', T_unit='C', h_unit='kJ / kg')
# %% components
# turbine part
valve_turb = valve('turbine inlet valve')
turbine_hp = turbine('high pressure turbine')
split = splitter('extraction splitter')
turbine_lp = turbine('low pressure turbine')
# condenser and preheater
cond = condenser('condenser')
preheater = condenser('preheater')
merge_ws = merge('waste steam merge')
valve_pre = valve('preheater valve')
# feed water
pump = pump('pump')
steam_generator = heat_exchanger_simple('steam generator')
closer = cycle_closer('cycle closer')
fluids = ['water']
nw = network(fluids=fluids, p_unit='bar', T_unit='C', h_unit='kJ / kg')
# %% components
# turbine part
turb_hp = turbine('high pressure turbine')
split = splitter('extraction splitter')
turb_lp = turbine('low pressure turbine')
# condenser and preheater
cond = condenser('condenser')
preheat = condenser('preheater')
mer = merge('waste steam merge')
val = valve('valve')
# feed water
pu = pump('pump')
sg = heat_exchanger_simple('steam generator')
closer = cycle_closer('cycle closer')
# source and sink for cooling water
dh_in = source('district heating backflow')
dh_out = sink('district heating feedflow')
# %% connections
# turbine part
cc_turb_hp = connection(closer, 'out1', turb_hp, 'in1')
