Analysis of car waste heat recovery system utilizing thermoelectric generator

  • Artur Nemś Wroclaw University of Science and Technology
  • Mikołaj Simiński Wroclaw University of Science and Technology
  • Magdalena Nemś Wroclaw University of Science and Technology
  • Tomasz Magiera Wroclaw University of Science and Technology
Keywords: car, thermoelectric generator, heat recovery, waste heat, exhaust system, engine

Abstract

This paper presents a calculation algorithm for a thermoelectric generator fitted in the exhaust system of a combustion engine. The viability of the presented calculation method was verified on an actual combustion engine. The calculations were performed for a BMW engine, and the generator design was based on a prototype from the same manufacturer. The paper includes calculations of the thermal cycle and of the parameters of exhaust gases from the engine. Subsequent calculations cover heat transfer from exhaust gases to the thermoelectric module and the amount of electric energy obtained from a series of modules. In the last part, the focus is on the influence of engine speed on the performance of the thermoelectric generator.

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Published
2018-06-30
Section
Articles