Development of two-phase flow regime specific pressure drop models for proton exchange membrane fuel cells
| Autor: | Erica Eggleton, Lifeng Zhang, Ryan Anderson |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Pressure drop
Renewable Energy Sustainability and the Environment Chemistry Isothermal flow Flow (psychology) Analytical chemistry Energy Engineering and Power Technology Proton exchange membrane fuel cell Mechanics Condensed Matter Physics Fuel Technology Relative humidity Two-phase flow Current (fluid) Current density |
| Zdroj: | International Journal of Hydrogen Energy. 40:1173-1185 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2014.11.032 |
| Popis: | Water is an inevitable byproduct in proton exchange membrane fuel cells that can lead to complex two-phase flow throughout the cell's components, including the flow field channels utilized for gas delivery. A modified Lockhart–Martinelli (LM) approach based on unique water introduction through the gas diffusion layer is used here to predict the gas–liquid pressure drop in these channels by modifying the Chisholm parameter C. This paper exclusively uses experimental data of two-phase flow multipliers from four sources in the literature, all of which are obtained from active fuel cell operation. C does not appear to change strongly as a function of temperature, relative humidity, or air stoichiometry, but does vary significantly with the current density. This is especially true at low current densities ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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