化工学报2016，Vol.5Issue(5)：1798-1805,8.DOI:10.11949/j.issn.0438-1157.20151409
非均匀热通量对热电器件性能的影响
Influence of non-uniform heat flux on performance of thermoelectric device
摘要
Abstract
An effective approach to increase the output power efficiency of thermoelectric devices is to increase the temperature difference between the hot and cold ends of thermoelectric devices. However, when the heat flux being imposed upon the hot end is non-uniform, the temperature distribution on the hot surface is uneven, which will influence the overall performance of the device. Based on this, a conjugate thermal to electric energy conversion mathematical model of thermoelectric devices was established to analyze the influences of thermoelectric material properties, non-uniform heat flux on the output power performance of thermoelectric device. Numerical simulation results indicated that the influence of temperature dependent material properties on the system output power cannot be neglected and the influence on the system maximum temperature difference will approach 4% when heat flux is about 4 W·cm?2. The non-uniform heat flux has significant influence on the output power of thermoelectric device. The less the uniformity of heat flux upon the hot end of thermoelectric device, the more uneven of temperature distribution on the hot end, the maximum temperature, the high temperature region and the open-circuit voltage will be.关键词
太阳能热电发电器/热通量/热传导/均匀度/数值模拟Key words
solar thermoelectric power generator/heat flux/heat conduction/uniformity/numerical simulation分类
信息技术与安全科学引用本文复制引用
明廷臻,潘滔,王乾坤,周军莉,杨威,龚廷睿..非均匀热通量对热电器件性能的影响[J].化工学报,2016,5(5):1798-1805,8.基金项目
武汉地铁集团有限公司资助项目(WHRT-KY-201016) （WHRT-KY-201016）
武汉理工大学科研启动基金项目(40120237) （40120237）
中央高校基本科研业务费专项资金资助(2016IVA029) （2016IVA029）
国家自然科学基金项目(51106060).supported by the Wuhan Metro Group Co., Ltd. Foundation (WHRT-KY-201016), the Scientific Research Foundation of Wuhan University of Technology (40120237), the Fundamental Research Funds for the Central Universities (2016IVA029) and the National Natural Science Foundation of China (51106060). （51106060）
