汽车尾气余热热电转换装置设计与初期试验

上海交通大学学报（自然版） ›› 2011, Vol. 45 ›› Issue (06): 842-846.

汽车尾气余热热电转换装置设计与初期试验

全睿a，全书海a,b，黄亮b，邓亚东a，唐新峰c

(武汉理工大学a.汽车工程学院；b.自动化学院；c.材料复合新技术国家重点试验室，武汉 430070)

收稿日期:2009-06-09 出版日期:2011-06-29 发布日期:2011-06-29
基金资助:
国家重点基础研究发展计划(973)项目(2007CB607500)，高校新教师自主创新基金资助项目(2010-Ⅳ-018)

Design and Initial Performance Experiments of Thermoelectric Generator Based on Exhaust Heat of Car

QUAN Rui-a, QUAN Shu-Hai-a, b , HUANG Liang-b, DENG Ya-Dong-a, TANG Xin-Feng-c

(a.School of Automobile Engineering; b.School of Automation; c.State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China)

Received:2009-06-09 Online:2011-06-29 Published:2011-06-29

摘要/Abstract

摘要： 为有效利用汽车尾气中的废热以提高其燃油经济性，构建了汽车尾气余热热电转换台架试验装置,通过初期试验分析了在汽车发动机不同转速下分流器对出口尾气温度的影响因素，并测试了不同气体流场结构下的集热器表面温度分布情况和热电转换模块的输出性能.结果表明，分流器在尾气热传输方面构成了很大的热阻，延长尾气在集热器内部的流动时间和路径可以有效提高其表面温度和热电转换装置的输出能力，采用蛇形流道结构的集热器表面温度分布比空腔结构更加均匀.结合初期试验结果和实际经验提出了系统设计与集成的改进措施，对今后的进一步研究工作有一定指导意义.

关键词: 汽车尾气余热, 热电转换装置, 集热器, 温度场, 均匀性

Abstract: In order to utilize the exhaust heat of car effectively and enhance its fuel economy, a thermoelectric generator was designed to realize power generation, from the initial experiments with different engine speed, the temperature influence factors of exhaust were analyzed, besides, the surface temperature distribution of heat collectors with different flow structure as well as the output performance of thermolelectric modules were tested. The experimental results prove that the shunt device in tail pipeline makes a large thermal resistance during the exhaust heat transmission; prolonging tail’s transmission time and path appropriately can help raise the temperature of heat collector’s surface and enhance the output performance of thermoelectric generator evidently; the temperature distribution of heat collector’s surface with snake flow structure is much more uniform than that with cavity structure. According to the experimental results and analysis above, several improved measures were put forward, which will provide useful guidance to the further research in furture.

Key words: exhaust heat of car, thermoelectric generator, heat collector, temperature field, uniformity

中图分类号:

TK39

全睿a, 全书海a, b, 黄亮b, 邓亚东a, 唐新峰c. 汽车尾气余热热电转换装置设计与初期试验[J]. 上海交通大学学报（自然版）, 2011, 45(06): 842-846.

QUAN Rui-a, QUAN Shu-Hai-a, b , HUANG Liang-b, DENG Ya-Dong-a, TANG Xin-Feng-c. Design and Initial Performance Experiments of Thermoelectric Generator Based on Exhaust Heat of Car[J]. Journal of Shanghai Jiaotong University, 2011, 45(06): 842-846.

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