Channel to rib width ratio effect on thermal performance of cooling plate in polymer electrolyte membrane fuel cell

Küçük Resim Yok

Tarih

2022

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Wiley-V C H Verlag Gmbh

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

Ensuring a homogeneous temperature distribution inside a polymer electrolyte membrane fuel cell stack is crucial to fuel cell performance and durability, and cooling channels are responsible for this. In this study, a three-dimensional numerical investigation is performed on a channel to rib width ratio (CR) based on serpentine flow field design. The cooling performance of various designs having different CR values is considered and compared according to the temperature uniformity index, the temperature difference between the maximum and minimum temperature, average bottom temperature, and pressure drop between the inlet and outlet of the cooling channels. Results demonstrate that the average temperature, temperature uniformity index, temperature difference, and pressure drop decrease by about 5%, 40%, 37%, and 79%, respectively, when CR is increased from 0.33 to 3.00. More uniform temperature distribution and thus, better cooling performance is achieved for CR = 3.00, especially at low Reynolds numbers and high heat fluxes. Also, the lowest pressure drops are obtained when CR is 3.00 under all considered operating conditions.

Açıklama

Anahtar Kelimeler

polymer electrolyte membrane fuel cell, cooling plate, heat transfer, fluid flow, CFD

Kaynak

Fuel Cells

WoS Q Değeri

Q3

Scopus Q Değeri

Q2

Cilt

22

Sayı

5

Künye