Simulation on thermoelectric device with hydrogen catalytic combustion

The micro-thermoelectric-generator based on catalytic combustion of hydrogen and oxygen was designed. With the application of general finite reaction rate model in CFD software of FLUENT, the effect of inlet parameters on the highest temperature difference between the hot and cold plate of the generator was studied. Results showed that, the temperature in the heating and cooling channel of the micro-thermoelectric-generator was uniform; with the increasing of inlet reactant temperature, the highest temperature difference increased, but the total efficiency of the generator decreased. Results can be used to the further design and optimization of micro-thermoelectric-generator based on hydrogen catalytic combustion.

► Micro-thermoelectric-generator based on H2 catalytic combustion was simulated.
► Effects of inlet parameters on its temperature distribution were discussed.
► Maximum temperature difference between hot and cold side was found.
► Lower inlet temperatures could receive higher total efficiency of the generator.