An Experimental Study of a Novel Prototype for Thermoelectric Power Generation from Vehicle Exhaust

  • Weizhong Li School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, P. R. China
  • Changxin Liu (1) Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, P. R. China. (2) Energy and Sustainability Research Division, Faculty of Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, UK
Keywords: thermoelectric power generation, thermoelectric module, exhaust heat recovery, thermal efficiency, waste heat recovery

Abstract

For a vehicle internal combustion engine, about 30% of the primary energy is discharged as waste heat in the exhaust gases. Waste heat recovery is a promising application of thermoelectric power generation (TEG). In this article, a novel prototype for TEG from vehicle exhaust has been proposed. After system modeling, an experiment structure has also been built and tested for further study. Results of theoretic analysis and experiment show the prototype employed for exhaust heat recovery is agreeable with the model. The prototype can generate a maximum power output of about 202W when hot side temperature is 473K with 4.04% of system thermal efficiency. System optimization and future improvement of the prototype has also been discussed. Finally, based on a vehicle made by our research funder, economic value for commercialization in diesel vehicles has been analyzed.

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Author Biographies

Weizhong Li , School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, P. R. China

Weizhong Li (1955): Professor of Dalian University of Technology (2002-) and Ph.D. of Nottingham Trent University (1998-2002). His research activities and area of expertise include: Evaluation of the heat exchanger and heat transfer enhancement mechanism, sustainable: Energy and waste heat recovery. Address: Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, P. R. China E-mail: wzhongli@dlut.edu.cn, Tel: +86 (0) 411 84708774

Changxin Liu, (1) Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, P. R. China. (2) Energy and Sustainability Research Division, Faculty of Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, UK

Changxin Liu (1981): Ph.D. candidate of Dalian University of Technology (2009-) and Joint-Ph.D. student in University of Nottingham (2010-2012). His research activities and area of expertise include: Sustainable energy, waste heat recovery and thermoelectric power generation. Addresses: (1) Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, School of Energy and Power Engineering, Dalian University of Technology, Dalian 116023, P. R. China. (2) Energy and Sustainability Research Division, Faculty of Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, UK. E-mail: liu.changxin@mail.dlut.edu.cn, Tel: +86 (0) 411 84708774

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