Journal of South China University of Technology (Natural Science Edition) ›› 2011, Vol. 39 ›› Issue (3): 47-51.doi: 10.3969/j.issn.1000-565X.2011.03.010

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Modeling and Numerical Analysis of Internal Enhanced Direct Thermoelectric Conversion System

Zhang Zheng  Xie Xiao-peng  Wu Jiang-hong   

  1. School of Mechanical and Automotive Englneering，South China University of TechnologY，Guangzhou 510640，Guangdong，China
  • Received:2010-08-09 Revised:2010-11-17 Online:2011-03-25 Published:2011-02-01
  • Contact: 张征(1954-)，男，博士，副教授，主要从事车辆节能与热电转换、机电工程自动化研究 E-mail:mezzhang@scut.edu.cn
  • About author:张征(1954-)，男，博士，副教授，主要从事车辆节能与热电转换、机电工程自动化研究
  • Supported by:

    广东省高新技术产业化项目(2009B010900019)

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Abstract:

In this paper,a system model of direct thermoelectric conversion applicable to project analysis is established,and the structure and mathematical description of the internal enhanced thermoelectric generator are presented.Moreover,the variation trends of convective heat transfer coefficient,temperature and pressure in the generator channel are obtained through the numerical calculation of convection heat transfer and resistance characteristics.The results are finally compared with those of the external thermoelectric generator.Numerical analyses show that the components set in the channel effectively improve the heat transfer area and convection heat transfer coefficient,and that the shape change of the channel cross section may result in lower flow resistance and pressure drop,thus enhancing the thermoelectric conversion properties.

Key words: Intensified, thermoelectric system, modeling, numerical analysis