Thermodynamic Optimization of a High Temperature Proton Exchange Membrane Fuel Cell for Fuel Cell Vehicle Applications

In this paper, a finite time thermodynamic model of high temperature proton exchange membrane fuel cell (HT-PEMFC) is established, in which the irreversible losses polarization and leakage current during operation are considered. The influences operating temperature, thickness, phosphoric acid doping level, hydrogen oxygen intake pressure on maximum output power density Pmax efficiency ?max studied. As rises, will increase. decrease thickness increase Pmax, but has little influence ?max. level can it effect With pressure, be improved. This article also obtains optimization relationship between efficiency, range interval HT-PEMFC provide guidance for applicable use HT-PEMFCs.