Performance Evaluation of a Silicide-based Thermoelectric Generator for Power Generation

摘要：

　　A TEG composed of p-type higher manganese silicide and n-type magnesium silicide-stannide was evaluated by theoretical simulation based on finite element method and steady-state approximation.The geometry factors,heat flux,power output and the thermal-electrical conversion efficiency of the TEG were calculated by applying the measured thermoelectric parameters of each leg into the simulation tool.Furthermore,the contact effect on the performance of the TEG was analyzed by separately introducing a contact layer between the thermoelectric legs and the metal layers having specific electrical and thermal conductivity.It was found that the different cross-sectional areas were required for the p- and n-type legs to achieve maximum module output or conversion efficiency.In ideal contact state,a promising efficiency of 8.29% can be obtained at a given temperature gradient.On the other hand,the performance of the TEG might be seriously deteriorated if the electrical or/and thermal resistance of the contact layer increased.

关键词： Thermoelectric generator Simulation Finite element method Silicide

作者: Aijun Zhou Lidong Feng Wei Liu Xinyi Dai Hengguan Cui Xinbing Zhao Jingze Li

作者单位: State Key Laboratory of Electronic Thin films and Integrated Devices, University of Electronic Scien State Key Laboratory of Electronic Thin films and Integrated Devices, University of Electronic Scien State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 144-152

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）