Automotive Innovation ›› 2018, Vol. 1 ›› Issue (1): 54-61.doi: 10.1007/s42154-018-0006-z

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新型汽车尾气余热回收温差发电系统的性能分析

With progressively stringent fuel consumption regulations, many researchers and engineers are focusing on the employment of waste heat recovery technologies for automotive applications. Regarded as a promising method of waste heat recovery, the thermoelectric generator (TEG) has been given increasing attention over the whole automotive industry for the last decade. In this study, we first give a brief review of improvements in thermoelectric materials and heat exchangers for TEG systems. We then present a novel design for a concentric cylindrical TEG system that addresses the existing weaknesses of the heat exchanger. In place of the typical square-shaped thermoelectric module, our proposed concentric cylindrical TEG system uses an annular thermoelectric module and employs the advantages of the heat pipe to enhance the heat transfer in the radial direction. The simulations we carried out to verify the performance of the proposed system showed better power output among the existing TEG system, and a comparison of water-inside and gas-inside arrangements showed that the water-inside concentric cylindrical TEG system produced a higher power output.
  

  1. Huang Kuo1, Yuying Yan1,2, Bo Li1, Yong Li3, Kai Li4, Jun Li4

    1. Fluids and Thermal Engineering Research Group, Faculty of Engineering, University of Nottingham, Nottingham, UK

    2. Fluids and Thermal Engineering Research Centre, University of Nottingham Ningbo China, Ningbo, China

    3. School of Automotive and Mechanical Engineering, South China University of Technology, Guangzhou, China 4.FAW Group Corporation, Changchun, China

  • 出版日期:2018-03-15 发布日期:2018-03-09

A Novel Design of Thermoelectric Generator in Waste Heat Recovery for Automotive Application

With progressively stringent fuel consumption regulations, many researchers and engineers are focusing on the employment of waste heat recovery technologies for automotive applications. Regarded as a promising method of waste heat recovery, the thermoelectric generator (TEG) has been given increasing attention over the whole automotive industry for the last decade. In this study, we first give a brief review of improvements in thermoelectric materials and heat exchangers for TEG systems. We then present a novel design for a concentric cylindrical TEG system that addresses the existing weaknesses of the heat exchanger. In place of the typical square-shaped thermoelectric module, our proposed concentric cylindrical TEG system uses an annular thermoelectric module and employs the advantages of the heat pipe to enhance the heat transfer in the radial direction. The simulations we carried out to verify the performance of the proposed system showed better power output among the existing TEG system, and a comparison of water-inside and gas-inside arrangements showed that the water-inside concentric cylindrical TEG system produced a higher power output.
  

  1. Huang Kuo1, Yuying Yan1,2, Bo Li1, Yong Li3, Kai Li4, Jun Li4

    1. Fluids and Thermal Engineering Research Group, Faculty of Engineering, University of Nottingham, Nottingham, UK

    2. Fluids and Thermal Engineering Research Centre, University of Nottingham Ningbo China, Ningbo, China

    3. School of Automotive and Mechanical Engineering, South China University of Technology, Guangzhou, China 4.FAW Group Corporation, Changchun, China

  • Online:2018-03-15 Published:2018-03-09

摘要:

With progressively stringent fuel consumption regulations, many researchers and engineers are focusing on the employment of waste heat recovery technologies for automotive applications. Regarded as a promising method of waste heat recovery, the thermoelectric generator (TEG) has been given increasing attention over the whole automotive industry for the last decade. In this study, we first give a brief review of improvements in thermoelectric materials and heat exchangers for TEG systems. We then present a novel design for a concentric cylindrical TEG system that addresses the existing weaknesses of the heat exchanger. In place of the typical square-shaped thermoelectric module, our proposed concentric cylindrical TEG system uses an annular thermoelectric module and employs the advantages of the heat pipe to enhance the heat transfer in the radial direction. The simulations we carried out to verify the performance of the proposed system showed better power output among the existing TEG system, and a comparison of water-inside and gas-inside arrangements showed that the water-inside concentric cylindrical TEG system produced a higher power output.

关键词: 尾气余热回收, 温差发电系统, 热管, 强化传热, 数值仿真

Abstract:

With progressively stringent fuel consumption regulations, many researchers and engineers are focusing on the employment of waste heat recovery technologies for automotive applications. Regarded as a promising method of waste heat recovery, the thermoelectric generator (TEG) has been given increasing attention over the whole automotive industry for the last decade. In this study, we first give a brief review of improvements in thermoelectric materials and heat exchangers for TEG systems. We then present a novel design for a concentric cylindrical TEG system that addresses the existing weaknesses of the heat exchanger. In place of the typical square-shaped thermoelectric module, our proposed concentric cylindrical TEG system uses an annular thermoelectric module and employs the advantages of the heat pipe to enhance the heat transfer in the radial direction. The simulations we carried out to verify the performance of the proposed system showed better power output among the existing TEG system, and a comparison of water-inside and gas-inside arrangements showed that the water-inside concentric cylindrical TEG system produced a higher power output.

Key words: Waste Heat Recovery, Thermoelectric Generator, Heat Pipe, Heat Transfer Enhancement, Numerical simulation