Numerical Investigation on Internal Structures of Ultra-Thin Heat Pipes for PEM Fuel Cells Cooling
نویسندگان
چکیده
Proton exchange membrane fuel cell (PEMFC) powered propulsion has gained increasing attention in urban air mobility applications recent years. Due to its high power density, ultra-thin heat pipe technology great potential for cooling PEMFCs, but optimizing the limited internal cavity of remains a significant challenge. In this study, three-dimensional multiphase model cooled PEMFC is built evaluate impact three structures, layered, spaced, and composite, pipes on system performance. The results show that with composite structure yields lower thermal resistance larger operating range compared other structures because more rational layout cavity. addition, relationship between land channel width ratio (LCWR) local transport property analyzed discussed based structural pipes. LCWR 0.75 advantage limiting current density maximum LCWRs 1 1.33 as result uniform in-plane distributions temperature liquid water within cathode catalyst layer.
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ژورنال
عنوان ژورنال: Energies
سال: 2023
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en16031023