最大功率和效率条件下的热电器件性能优化  

Performance Optimization of Thermoelectric Generator under Maximum Power and Efficiency Conditions

作　　者：蔡永华[1,2] 明平顺[1] 肖金生[1,2] 唐新峰[2] 张清杰[2] 

机构地区：[1]武汉理工大学汽车工程学院,湖北武汉430070 [2]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

出　　处：《武汉理工大学学报（信息与管理工程版）》2009年第2期267-270,共4页Journal of Wuhan University of Technology：Information & Management Engineering

基　　金：国家重点基础研究发展计划基金资助项目(2007CB607506);国家高技术发展研究计划基金资助项目(2007AA05Z444)

摘　　要：建立了热电器件的效率模型,讨论了常物性和变物性情况下及最大功率优化和最大效率优化条件下热电器件的效率变化,以及输入能量、冷端温度等对热电器件效率的影响。结果表明,变物性条件能更好地反映热电器件的实际工作情况。热电器件的效率与输入能量、材料物性、冷端温度及热、冷端温差有关,提高热电器件的输入能量、降低其冷端温度能提高热电器件的温差,从而提高热电器件的效率。A model of efficiency of thermoelectric generator was proposed. Influence of input energy and temperature at cold plate on efficiency of thermoelectric generator, and efficiency variation under optimization of maximum power and efficiency, constant and mutable material properties were discussed. Results show that condition of mutable material properties can better reflects the real work situation. Input energy, property of material, temperature at cold plate and temperature difference between ends of thermoelectric generator have effect on efficiency of thermoelectric generator, Temperature difference between thermoelectric generator increases with the increase of input energy and decrease of temperature at cold plate, consequently, increase the efficiency of thermoelectric generator.

关 键 词：热电器件 最大功率 最大效率 性能优化 

分 类 号：TK515[动力工程及工程热物理—热能工程]