Temperature characteristics of 5KW air cooled proton exchange membrane fuel cell

The thesis studies the temperature characteristics of 5kW air natural convectional type proton exchange membrane fuel cell. The three-dimensional mathematical model of the proton exchange membrane fuel cell system is established. Using COMSOL software multiphysics simulation modeling, from the aspect of air natural convection, heat and mass transfer coupling, with natural air cooling characteristics, it gets the numerical solution. The solution is that the battery temperature rises rapidly when the pressure drops. It will reduce the battery performance. Therefore, it is necessary to reasonably control the pressure of air cooling type battery and the temperature range. It has important significance to proton exchange membrane fuel cell efficient thermal management system .