# -*- coding: utf-8 -*-
# BioSTEAM: The Biorefinery Simulation and Techno-Economic Analysis Modules
# Copyright (C) 2020-2023, Yoel Cortes-Pena <yoelcortes@gmail.com>
#
# This module is under the UIUC open-source license. See
# github.com/BioSTEAMDevelopmentGroup/biosteam/blob/master/LICENSE.txt
# for license details.
"""
"""
import biosteam as bst
cost = bst.decorators.cost
__all__ = ('ProcessWaterCenter',)
[docs]
@cost('Makeup water flow rate', 'Makeup water pump',
CE=551, kW=20*0.7457, cost=6864, S=155564, n=0.8, BM=3.1)
@cost('Process water flow rate', 'Process water pump',
CE=551, kW=75*0.7457, cost=15292, S=518924, n=0.8, BM=3.1)
@cost('Process water flow rate', 'Tank',
CE=522, cost=250e3, S=451555, n=0.7, BM=1.7)
class ProcessWaterCenter(bst.Facility):
"""
Create a ProcessWaterCenter object that takes care of balancing the amount
of make-up process and reverse osmosis (RO) -grade water required for the
process. The capital cost and power are based on the flow rate of process
and make-up water as given in[1]_.
Parameters
----------
ins :
[0] Recycled RO-grade water.
[1] Make-up RO-grade water.
[2] Recycled process water.
[3] Make-up process water.
outs :
[0] RO-grade water.
[1] Process water.
[2] Excess water.
makeup_water_streams : List[Stream], optional
All inlet RO-grade water streams.
Defaults to boiler and cooling tower make-up water streams at run time.
process_water_streams : List[Stream], optional
All inlet process water streams (excluding makeup water streams).
Defaults to all fresh process water streams within the system at
run time.
reverse_osmosis_water_price : float, optional
Defaults to 5.6e-4 USD/kg.
process_water_price : float, optional
Defaults to 2.7e-4 USD/kg.
Notes
-----
Default prices for the RO-grade and process water are 0.56 and 0.27 USD/m3
as given in Table 17.1 of [2]_.
References
----------
.. [1] Humbird, D., Davis, R., Tao, L., Kinchin, C., Hsu, D., Aden, A.,
Dudgeon, D. (2011). Process Design and Economics for Biochemical
Conversion of Lignocellulosic Biomass to Ethanol: Dilute-Acid
Pretreatment and Enzymatic Hydrolysis of Corn Stover
(No. NREL/TP-5100-47764, 1013269). https://doi.org/10.2172/1013269
.. [2] Seider, W. D., Lewin, D. R., Seader, J. D., Widagdo, S., Gani,
R., & Ng, M. K. (2017). Product and Process Design Principles. Wiley.
Cost Accounting and Capital Cost Estimation (Chapter 16)
"""
ticket_name = 'PWC'
network_priority = 2
_N_ins = 4
_N_outs = 3
_units = {'Makeup water flow rate': 'kg/hr',
'Process water flow rate': 'kg/hr'}
def _init(self,
makeup_water_streams=None,
process_water_streams=None,
reverse_osmosis_water_price=None,
process_water_price=None
):
if process_water_streams and makeup_water_streams:
process_water_streams = list(process_water_streams)
for i in makeup_water_streams:
if i in process_water_streams: process_water_streams.remove(i)
self.makeup_water_streams = makeup_water_streams
self.process_water_streams = process_water_streams
self.define_utility('Reverse osmosis water', self.makeup_reverse_osmosis_grade_water)
self.define_utility('Process water', self.makeup_process_water)
if reverse_osmosis_water_price: self.reverse_osmosis_water_price = reverse_osmosis_water_price
if process_water_price: self.process_water_price = process_water_price
@property
def reverse_osmosis_water_price(self):
"""[Float] Price of reverse osmosis-grade water, same as `bst.stream_utility_prices['Reverse osmosis water']`."""
return bst.stream_utility_prices['Reverse osmosis water']
@reverse_osmosis_water_price.setter
def reverse_osmosis_water_price(self, new_price):
bst.stream_utility_prices['Reverse osmosis water'] = new_price
@property
def process_water_price(self):
"""[Float] Price of process water, same as `bst.stream_utility_prices['Process water']`."""
return bst.stream_utility_prices['Process water']
@process_water_price.setter
def process_water_price(self, new_price):
bst.stream_utility_prices['Process water'] = new_price
@property
def recycled_reverse_osmosis_grade_water(self):
return self.ins[0]
@property
def makeup_reverse_osmosis_grade_water(self):
return self.ins[1]
@property
def recycled_process_water(self):
return self.ins[2]
@property
def makeup_process_water(self):
return self.ins[3]
@property
def reverse_osmosis_grade_water(self):
return self.outs[0]
@property
def process_water(self):
return self.outs[1]
@property
def excess_water(self):
return self.outs[2]
def _assert_compatible_property_package(self): pass
def update_process_water(self):
process_water_streams = self.process_water_streams
if process_water_streams is None:
self.process_water_streams = process_water_streams = bst.get_fresh_process_water_streams()
process_water = sum([stream.imol['7732-18-5'] for stream in process_water_streams])
self.process_water.imol['7732-18-5'] = process_water
def update_reverse_osmosis_grade_water(self):
makeup_water_streams = self.makeup_water_streams
if makeup_water_streams is None:
self.makeup_water_streams = makeup_water_streams = [
i.makeup_water for i in self.system.facilities
if hasattr(i, 'makeup_water')
]
self.reverse_osmosis_grade_water.imol['7732-18-5'] = sum([stream.imol['7732-18-5'] for stream in makeup_water_streams])
def _run(self):
self.update_reverse_osmosis_grade_water()
self.update_process_water()
s_recycle_rev_os, s_rev_os_makeup, s_recycle_process, s_process_makeup = self._ins
rrogw = s_recycle_rev_os.imol['7732-18-5']
rpw = s_recycle_process.imol['7732-18-5']
pw = self.process_water.imol['7732-18-5']
rogw = self.reverse_osmosis_grade_water.imol['7732-18-5']
mrogw = rogw - rrogw
if mrogw >= 0.:
s_rev_os_makeup.imol['7732-18-5'] = mrogw
else:
s_rev_os_makeup.imol['7732-18-5'] = 0.
rpw -= mrogw # Unused RO-grade water is added to recycled process water
mpw = pw - rpw
if mpw >= 0.:
s_process_makeup.imol['7732-18-5'] = mpw
self.excess_water.imol['7732-18-5'] = 0.
else:
s_process_makeup.imol['7732-18-5'] = 0.
self.excess_water.imol['7732-18-5'] = -mpw # Excess recycled water
Design = self.design_results
Design['Process water flow rate'] = (
self.excess_water.imol['7732-18-5'] + self.process_water.imol['7732-18-5']
) * 18.015
Design['Makeup water flow rate'] = (
s_process_makeup.imol['7732-18-5']
) * 18.015