Contents Chapter 20: Modeling Fuel Cells | Print page 20.2. Fuel Cell and Electrolysis Model TheoryThis chapter presents the theoretical background for the Fuel Cell and Electrolysis modeling capabilities in Ansys Fluent.20.2.1. Introduction20.2.2. Electrochemistry Modeling20.2.3. Current and Mass Conservation20.2.4. Heat Source20.2.5. Liquid Water Formation, Transport, and its Effects (Low-Temperature PEMFC Only)20.2.6. Properties20.2.7. Transient Simulations20.2.8. Leakage Current (Cross-Over Current) « 20.1.9. Zones Where User-Defined Scalars Have Physically Meaningful Values 20.2.1. Introduction »