OARO 1D documentation

docs/technical_reference/unit_models/index.rst

@@ -19,6 +19,7 @@ Unit Models
    uv_aop
    gac
    osmotically_assisted_reverse_osmosis_0D
+   osmotically_assisted_reverse_osmosis_1D
    anaerobic_digestor
    ion_exchange_0D
    membrane_distillation_0D

docs/technical_reference/unit_models/osmotically_assisted_reverse_osmosis_0D.rst

@@ -16,29 +16,26 @@ This osmotically assisted reverse osmosis (OARO) unit model
 
 Degrees of Freedom
 ------------------
-Aside from the inlet feed state variables (i.e. temperature, pressure, component flowrates), the OARO model has
-at least 5 degrees of freedom that should be fixed for the unit to be fully specified. Unlike RO, which only
+Aside from the feed-side and permeate-side inlet state variables (i.e. temperature, pressure, component flowrates), the OARO model has
+at least 4 degrees of freedom that should be fixed for the unit to be fully specified. Unlike RO, which only
 accounts for concentration polarization on the feed side, the OARO model includes a structural parameter
 variable, which is used to calculate the membrane-interface concentration on the permeate side.
 
-
 Typically, the following variables are fixed for the OARO model, in addition to state variables at the inlet:
     * membrane water permeability, A
     * membrane salt permeability, B
-    * permeate pressure
     * membrane area
     * structural parameter
 
 On the other hand, configuring the OARO unit to calculate concentration polarization effects, mass transfer
 coefficient, and pressure drop would result in 6 additional degrees of freedom. In this case, in addition to the
 previously fixed variables, we typically fix the following variables to fully specify the unit:
 
-    * feed-spacer porosity
-    * feed-channel height
-    * feed-velocity
-    * permeate-space porosity
-    * permeate-channel height
-    * membrane length *or* membrane width *or* inlet Reynolds number
+    * feed-side spacer porosity
+    * feed-side channel height
+    * permeate-side space porosity
+    * permeate-side channel height
+    * feed-side Reynolds number *or* water mass recovery
 
 Model Structure
 ------------------

docs/technical_reference/unit_models/osmotically_assisted_reverse_osmosis_1D.rst

@@ -0,0 +1,76 @@
+Osmotically Assisted Reverse Osmosis (1D)
+=========================================
+This osmotically assisted reverse osmosis (OARO) unit model
+   * is 1-dimensional
+   * supports a single liquid phase only
+   * supports steady-state only
+   * is based on the solution-diffusion model and film theory
+   * assumes isothermal conditions
+   * assumes the feed-side flows in the forward direction
+   * assumes the permeate-side flows in the backwards direction
+
+.. index::
+   pair: watertap.unit_models.osmotically_assisted_reverse_osmosis_1D;osomtically_assisted_reverse_osmosis_1D
+
+.. currentmodule:: watertap.unit_models.osmotically_assisted_reverse_osmosis_1D
+
+Degrees of Freedom
+------------------
+Aside from the feed-side and permeate-side inlet state variables (i.e. temperature, pressure, component flowrates), the OARO model has
+at least 4 degrees of freedom that should be fixed for the unit to be fully specified. Unlike RO, which only
+accounts for concentration polarization on the feed side, the OARO model includes a structural parameter
+variable, which is used to calculate the membrane-interface concentration on the permeate side.
+
+Typically, the following variables are fixed for the OARO model, in addition to state variables at the inlet:
+    * membrane water permeability, A
+    * membrane salt permeability, B
+    * membrane area
+    * structural parameter
+
+On the other hand, configuring the OARO unit to calculate concentration polarization effects, mass transfer
+coefficient, and pressure drop would result in 6 additional degrees of freedom. In this case, in addition to the
+previously fixed variables, we typically fix the following variables to fully specify the unit:
+
+    * feed-side spacer porosity
+    * feed-side channel height
+    * permeate-side space porosity
+    * permeate-side channel height
+    * feed-side Reynolds number *or* water mass recovery
+
+Model Structure
+------------------
+This OARO model consists of a separate MembraneChannel1DBlock for the feed-side and the permeate-side of the OARO unit.
+
+* The feed-side includes StateBlocks indexed by time and space (feed_side.properties[t, x]) which are used for mass, energy, and momentum balances, and additional StateBlocks for the conditions at the membrane interface (feed_side.properties_interface[t, x]).
+* The permeate-side includes StateBlocks indexed by time and space (permeate-side.properties[t, x]) which are used for mass, energy, and momentum balances, and additional StateBlocks for the conditions at the membrane interface (permeate-side.properties_interface[t, x]).
+
+Sets
+----
+.. csv-table::
+   :header: "Description", "Symbol", "Indices"
+
+   "Time", ":math:`t`", "[0]"
+   "Inlet/outlet", ":math:`x`", "['in', 'out']"
+   "Phases", ":math:`p`", "['Liq']"
+   "Components", ":math:`j`", "['H2O', 'NaCl']*"
+
+\*Solute depends on the imported property model; example shown here is for the NaCl property model.
+
+.. _1doaro_variables:
+
+Variables
+----------
+
+Refer to the :any:`0doaro_variables` section in the  0D OARO model.
+
+.. _1doaro_equations:
+
+Equations
+-----------
+
+Refer to the :any:`0doaro_equations` section in the  0D OARO model.
+
+Class Documentation
+-------------------
+
+* :mod:`watertap.unit_models.osmotically_assisted_reverse_osmosis_1D`