A computational fluid dynamics analysis of heat transfer in an air-cooled proton exchange membrane fuel cell with transient boundary conditions

Alexander Lind, Chungen Yin, Torsten Berning

Research output: Contribution to journalConference article in JournalResearchpeer-review

Abstract

Turbulence-inducing grids can enhance heat transfer in air-cooled proton exchange membrane fuel cells and help to increase the fuel cell performance. In this computational fluid dynamics analysis, the distance between the turbulence grid and the cathode inlet was first varied, and then a transient sinusoidal inlet velocity around the previously investigated steady-state inlet velocity was applied because the heat transfer coefficient is known to increase in pulsating flow. Results indicate that the best distance between the grid and the cathode inlet is the closest at 2.5 mm which is in good agreement with prior experiments. The transient effects are small but show an additional cooling effect.

Original languageEnglish
JournalECS Transactions
Volume98
Issue number9
Pages (from-to)255-263
Number of pages9
ISSN1938-6737
DOIs
Publication statusPublished - 2020
EventPacific Rim Meeting on Electrochemical and Solid State Science 2020, PRiME 200 - Honolulu, United States
Duration: 4 Oct 20209 Oct 2020

Conference

ConferencePacific Rim Meeting on Electrochemical and Solid State Science 2020, PRiME 200
CountryUnited States
CityHonolulu
Period04/10/202009/10/2020

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