Abstract
This article presents the results of the research effection of operating temperatures on the performance of proton exchange membrane fuel cell. In this study, the 3-D fuel cell calculation model was created and solved using the extended finite element method. Effect operating temperatures on the parameters of the fuel cell were investigated. The results showed that the fuel cell operating at high temperature increases the current density flux on the plates and the power density. However, the operating temperature of the fuel cell is too high lead to the current density flux on the plates and the power density reduction. The fuel cell operates at a high temperature that the concentration of electrochemical reactants and protonic conductivity of the membrane increases. However, the operating temperature of the fuel cell is too high lead to both these parameters reduction.