A new analysis approach of the thermal properties of the PEMFC

In terms of fuel cell steady-state performance modeling, many electrical models have been developed either from a theoretical point of view or from empirical point of view. The theoretical model needs accurate fuel cell stack parameters and the calculation process is very complex, so the empirical model is more suitable for the temperature control and simulation of the PEMFC stack. But the empirical model can been done more accurate only in the condition that we know all the operating conditions, but usually we can't. So based on the empirical model, this paper advanced a new approach of the PEMFC thermal model and then evaluate it theoretically and practically. The new method can ignore some of the operating conditions that difficult to know. The approach of the thermal model is validated by comparing model results with the experimental measurements. The data and the operating conditions are all based on the experiment in Tongji University. Based on the thermal approach built this paper also do something on the water exhaust rule which can contribute to the assessment of the enthalpy wheel humidifier effect and the study of the blooding of the cathode.