2.53.9 release; fix gas fed bioreactor bug

Author: yoelcortes

How2STEAM

@@ -13,7 +13,7 @@
 
 """
 from __future__ import annotations
-__version__ = '2.53.8'
+__version__ = '2.53.9'
 
 #: Chemical engineering plant cost index (defaults to 567.5 at 2017).
 CE: float = 567.5 

biosteam/__init__.py

@@ -667,7 +667,6 @@ class GasFedBioreactor(AbstractStirredTankReactor):
     default_methods = AeratedBioreactor.default_methods
     get_kLa = AeratedBioreactor.get_kLa
     get_agitation_power = AeratedBioreactor.get_agitation_power
-    _run_vent = AeratedBioreactor._run_vent
 
     def _init(self, 
             gas_substrates, 
@@ -790,6 +789,11 @@ def _load_gas_feeds(self):
         for i in self.gas_coolers: i.simulate()
         self.sparger.simulate()
 
+    def _run_vent(self, vent, effluent):
+        vent.copy_flow(self.sparged_gas)
+        vent.imol[self.gas_substrates] = 0
+        aeration.vent_broth(vent, effluent)
+    
     def _run(self):
         variable_gas_feeds = self.variable_gas_feeds
         vent, effluent = self.outs
@@ -809,7 +813,6 @@ def _run(self):
             effluent.mix_from(liquid_feeds, energy_balance=False)
             effluent.set_flow(STRs, units='mol/s', key=self.gas_substrates)
             self._run_reactions(effluent)
-            vent.empty()
             self._run_vent(vent, effluent)
         elif variable_gas_feeds:
             # Solve gas flow rates to meet titer.

biosteam/units/aerated_bioreactor.py

@@ -0,0 +1,6 @@
+{
+  "path": "../../How2STEAM/case_studies/Bioreactor_modeling.ipynb",
+  "extra-media": [
+      "../../How2STEAM/case_studies/mass_transfer.png"
+  ]
+}

docs/tutorial/Bioreactor_modeling.nblink

@@ -11,7 +11,7 @@
     name='biosteam',
     packages=['biosteam'],
     license='MIT',
-    version='2.53.8',
+    version='2.53.9',
     description='The Biorefinery Simulation and Techno-Economic Analysis Modules',
     long_description=open('README.rst', encoding='utf-8').read(),
     author='Yoel Cortes-Pena',