Model for Thermoelectric-generator Based on Engine Exhaust Gas and Influencing Law Analysis
In order to recover and utilize the energy of engine exhaust gas with high temperature based on thermoelectric generation technology,the influencing factors of the thermoelectric generator system and the influencing laws of output power were studied based on the validation of equation with the compassion of experimental and simulation results.The simulation results show that the output power increases firstly and decreases with the increasing of external load.The influencing law of See-beck coefficient is basically the same as the external load which shows a trend of increasing first and then decreasing.The relation between the internal resistance and the output power is quasi-quadratic,and the output power decreases with the increasing of internal resistance.The change in thermal conductivity of the thermoelectric generation module has a great effect on the output power.When the thermal conductivity becomes larger,the output power decreases and when the thermal conductivity increases from 0.01 to 0.9,the output power decreases by 80%.The effect of the heat dissipation coefficient of the hot and cold ends on the output power is basically the same which is that the output power increases with the increasing of heat dissipation coefficient.
thermoelectric generatoroutput powereffect factorseffect lawengine exhaust gas
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