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Top and bottom chemicals for partition settler #173

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Top and bottom chemicals for partition settler #173

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22 changes: 15 additions & 7 deletions biosteam/units/liquid_liquid_extraction.py
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Original file line number Diff line number Diff line change
Expand Up @@ -750,33 +750,41 @@ class LiquidsPartitionSettler(LiquidsSettler):
partition_coefficients : 1d array, optional
Partition coefficients of chemicals in equilibrium (molar
composition ratio of the top fluid over the bottom fluid).
partition_IDs: tuple[str], optional
partition_IDs : tuple[str], optional
IDs of chemicals in equilibrium.

top_chemicals : tuple[str], optional
Chemicals that remain in the top fluid.
bottom_chemicals : tuple[str], optional
Chemicals that remain in the bottom fluid.
"""
line = 'Settler'
def __init__(self, ID='', ins=None, outs=(), thermo=None, *,
partition_coefficients, partion_IDs,
partition_coefficients, partition_IDs,
area_to_feed=0.1,
length_to_diameter=4,
vessel_material='Carbon steel',
vessel_type='Horizontal'):
vessel_type='Horizontal',
top_chemicals=None,
bottom_chemicals=None,
):
bst.Unit.__init__(self, ID, ins, outs, thermo)
self.vessel_material = vessel_material
self.vessel_type = vessel_type
self.length_to_diameter = length_to_diameter
self.area_to_feed = area_to_feed
self.partition_coefficients = partition_coefficients
self.partion_IDs = partion_IDs
self.partition_IDs = partition_IDs
self.top_chemicals = top_chemicals
self.bottom_chemicals = bottom_chemicals
self.reset_cache()

def reset_cache(self, isdynamic=None):
self._phi = None

def _run(self):
self._phi = sep.partition(*self.ins, *self.outs,
self.partion_IDs, self.partition_coefficients,
self._phi)
self.partition_IDs, self.partition_coefficients,
self._phi, self.top_chemicals, self.bottom_chemicals)

# %% Mixer-settlers

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