process_water_streams = (stream.biodiesel_wash_water,
stream.cooling_tower_makeup_water,
stream.boiler_makeup_water)
makeup_water = Stream('makeup_water', price=0.000254)
process_water = Stream('process_water')
pws_indices = [i.index('Water') for i in process_water_streams]
pws_flow_index_pairs = tuple(zip([i._mol for i in process_water_streams], pws_indices))
def update_water():
process_water._mol[0] = sum([i[j] for i,j in pws_flow_index_pairs])
CWP = ChilledWaterPackage('CWP')
PWC = ProcessWaterCenter('PWC',
ins=('recycle_water', makeup_water),
outs=process_water)
S601 = Splitter('S601', ins=process_water, outs=process_water_streams,
split=(1,), order=('Water',))
UO = find.unit
area_500 = System('area_500', (BT,))
area_600 = System('area_600', (CT, CWP, PWC, S601))
# %% Set up system
connect_sugar = Junction(sugar, sugar_solution, ('Water', 'Glucose', 'Sucrose'))
connect_lipid = Junction(lipid, oil, ('Lipid',))
lipidcane_sys = System('lipidcane_sys',
network=pretreatment_sys.network
+ (connect_sugar, connect_lipid)
+ area_300.network
+ area_400.network,
facilities=(CWP, BT, CT, update_water, PWC))
units = lipidcane_sys._costunits
# Gasoline
denature = Stream('denaturant',
Octane=230.69,
units='kg/hr',
price=price['Gasoline'])
# Yeast
S144 = Stream('yeast', Water=24700, DryYeast=10300, units='kg/hr')
# Ethanol product
ethanol = Stream('ethanol', price=price['Ethanol'])
# %% Units
# Split sugar solution
P16 = Splitter('P16', split=0.265)
# Concentrate sugars
P15 = MultiEffectEvaporator(
'P15',
component='Water', # component being evaporated
P=(101325, 73581, 50892, 32777, 20000),
V=0.95248) # fraction evaporated
P15.components['condenser'].U = 1.85
# Note: value of steam ~ 6.86 for the following
# (101325, 73580.467, 50891.17, 32777.406, 19999.925, 11331.5),
# Mix sugar solutions
P17 = Mixer('P17')
# Cool for fermentation
yeast = Stream('yeast', Water=24700, DryYeast=10300,
units='kg/hr')
# Sugar Stream (from Pretreatment section)
sugar_solution = Stream('sugar_solution', Glucose=1888.23, H3PO4=0,
Sucrose=21399.94, Water=264523.53,
units='kg/hr', T=99+273.15)
# Ethanol product
ethanol = Stream('ethanol', price=price['Ethanol'])
# %% Units
# Split sugar solution
S301 = Splitter('S301',
split=0.265)
# Concentrate sugars
F301 = MultiEffectEvaporator('F301',
component='Water', # component being evaporated
P=(101325, 73581, 50892, 32777, 20000),
V=0.95248) # fraction evaporated
F301.components['condenser'].U = 1.85
# Note: value of steam ~ 6.86 for the following
# (101325, 73580.467, 50891.17, 32777.406, 19999.925, 11331.5),
# Mix sugar solutions
M301 = Mixer('M301')
# Cool for fermentation
H301 = HXutility('H301', T=295.15)
# Remove solids as filter cake
C202 = RVF('C202',
outs=('filte_cake', ''),
moisture_content=0.80,
split=(0.85, 0.85, 0.85, 0.01, 0.85, 0.85, 0.01),
order=('Ash', 'CaO', 'Cellulose', 'Glucose', 'Hemicellulose',
'Lignin', 'Sucrose'))
P203 = Pump('P203')
# Separate oil and sugar
T207 = MixTank('T207', outs=('', ''))
split = np.zeros(len(pretreatment_species), float)
index = pretreatment_species.indices(('Lipid', 'Water'))
split[index] = (1, 0.0001)
T207._split = split
T207._run = lambda: Splitter._run(T207)
del split, index
# Cool the oil
H203 = HXutility('H203', T=343.15)
# Screen out small fibers from sugar stream
S202 = VibratingScreen('S202',
outs=('', 'fiber_fines'),
split=1 - np.array(
(0, 0, 0, 1, 0.002, 0, 0, 0, 0, 0.002, 0.002)),
order=psp2)
sugar = S202 - 0
S202.mesh_opening = 2
# Add distilled water to wash lipid