Testing and Evaluation on Thermoelectric Generator Mounted on an Engine Bench

Thermoelectric generate sheets were fabricated with BiTe thermoelectric material which was synthesized independently.The structure of heat collection end and water-cooling heat dissipation end,and the arrangement of thermoelectric generate sheets/electric circuit of the thermoelectric generator(TEG) were also designed.Based on them,TEG device which was suited to install on the exhaust pipe of large-power diesel engine was developed.Furthermore,the method of testing the TEG output power feature was researched and designed,by which TEG output power was systematically tested under the different engine operating conditions.The research content included the relationship between temperature difference and output power,the relationship between operating condition and output power,and the influence of TEG installation on the engine exhausting back pressure.