Table of Contents
Using This Manual ........................................................................................................................................ v
1. The Contents of This Manual ................................................................................................................ v
2.The Contents of the Fluent Manuals ..................................................................................................... v
3.Typographical Conventions ................................................................................................................ vii
4. Mathematical Conventions ................................................................................................................ vii
5. Technical Support ............................................................................................................................. viii
1. Fuel Cell and Electrolysis Model Theory ................................................................................................. 1
1.1. Introduction ..................................................................................................................................... 1
1.1.1. Introduction to PEMFC ............................................................................................................. 2
1.1.2. Introduction to SOFC ............................................................................................................... 3
1.1.3. Introduction to Electrolysis ....................................................................................................... 3
1.2. Electrochemistry Modeling ............................................................................................................... 3
1.3. Current and Mass Conservation ......................................................................................................... 6
1.4. Heat Source ...................................................................................................................................... 7
1.5. Liquid Water Formation,Transport, and its Effects (PEMFC Only) ......................................................... 7
1.6. Properties ......................................................................................................................................... 8
1.7. Transient Simulations ...................................................................................................................... 10
1.8. Leakage Current (Cross-Over Current) ............................................................................................. 10
2. Using the Fuel Cell and Electrolysis Model ........................................................................................... 13
2.1. Introduction ................................................................................................................................... 13
2.2. Geometry Definition for the Fuel Cell and Electrolysis Model ............................................................ 13
2.3. Installing the Fuel Cell and Electrolysis Model .................................................................................. 14
2.4. Loading the Fuel Cell and Electrolysis Module .................................................................................. 14
2.5. Setting Up the Fuel Cell and Electrolysis Module .............................................................................. 14
2.6. Modeling Fuel Cells and Electrolysis ................................................................................................ 15
2.6.1. Specifying Model Options ...................................................................................................... 17
2.6.2. Specifying Model Parameters ................................................................................................. 19
2.6.3. Specifying Anode Properties .................................................................................................. 20
2.6.3.1. Specifying Current Collector Properties for the Anode .................................................... 21
2.6.3.2. Specifying Flow Channel Properties for the Anode ......................................................... 22
2.6.3.3. Specifying Porous Electrode Properties for the Anode .................................................... 23
2.6.3.4. Specifying Catalyst Layer Properties for the Anode ......................................................... 24
2.6.3.5. Specifying Cell Zone Conditions for the Anode ............................................................... 25
2.6.4. Specifying Electrolyte/Membrane Properties .......................................................................... 25
2.6.4.1. Specifying Cell Zone Conditions for the Membrane ........................................................ 26
2.6.5. Specifying Cathode Properties ................................................................................................ 26
2.6.5.1. Specifying Current Collector Properties for the Cathode ................................................. 26
2.6.5.2. Specifying Flow Channel Properties for the Cathode ....................................................... 27
2.6.5.3. Specifying Porous Electrode Properties for the Cathode ................................................. 28
2.6.5.4. Specifying Catalyst Layer Properties for the Cathode ...................................................... 29
2.6.5.5. Specifying Cell Zone Conditions for the Cathode ............................................................ 30
2.6.6. Setting Advanced Properties .................................................................................................. 30
2.6.6.1. Setting Contact Resistivities for the Fuel Cell and Electrolysis Model ................................ 30
2.6.6.2. Setting Coolant Channel Properties for the Fuel Cell and Electrolysis Model .................... 31
2.6.6.3. Managing Stacks for the Fuel Cell and Electrolysis Model ................................................ 32
2.6.7. Reporting on the Solution ...................................................................................................... 34
2.7. Modeling Current Collectors ........................................................................................................... 35
2.8. Fuel Cell and Electrolysis Model Boundary Conditions ...................................................................... 36
2.9. Solution Guidelines for the Fuel Cell and Electrolysis Model ............................................................. 37
2.10. Postprocessing the Fuel Cell and Electrolysis Model ....................................................................... 38
iii
Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.
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