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A numerical investigation of gas flow and heat transfer in proton exchange membrane fuel cells

In English

Författare

Summary, in English

Gas flow and heat transfer in both cathode and anode channels have been modeled and analyzed for proton exchange membrane fuel cells. The simulated channel consists of a porous electrode layer (anode or cathode), gas flow duct, and solid current collector. The characteristics of gas flow and heat transfer in terms of friction factor and Nusselt number were investigated by a three-dimensional computational fluid dynamics code (CFD). A combined thermal boundary condition, which is unique for fuel cells and interfacial conditions between the porous layer, the gas flow duct, and the solid current collector, were clarified and applied in the calculation. The heat generation and mass transport processes have been modeled and implemented into the code by proper source terms. Furthermore, the effects of various parameters on the generation of heat, mass transport process, gas flow, and heat transfer are assessed also. These parameters include current density and permeability, effective thermal conductivity, and thickness of porous diffusion layer.

Avdelning/ar

Publiceringsår

2003

Språk

Engelska

Sidor

255-280

Publikation/Tidskrift/Serie

Numerical Heat Transfer Part A: Applications

Volym

44

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

Taylor & Francis

Ämne

  • Energy Engineering

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1040-7782