温差发电技术的研究进展及现状

Research progress of thermoelectric power generation

温差发电技术是一种绿色环保的发电方式,它可以合理利用太阳能、地热能、海洋热能、工业余热废热等低品位能源转化成电能。介绍了温差发电技术的原理,回顾了国内外的研究进展及现状,对温差发电中存在的发电效率低、温差电组件使用寿命短、可靠性不高等问题进行了分析,并提出了解决的办法。同时指出随着热电材料和温差电组件性能的提高,温差发电技术的优势将更加明显,应用前景广阔。

Thermoelectric power generation is an environment-friendly power source which can rationally use the low-grade heat energy such as solar heat,geothermal energy,industrial waste heat and so on,to generate electricity.The principle of thermoelectric power generation was introduced,and the research progress at both home and abroad was reviewed.The focused problems,such as the low conversion efficiency,the short lifetime and the poor reliability of the thermoelectric module were discussed in detail,and the possible solutions were presented.With the performance improvement of the thermoelectric materials and modules,thermoelectric power generation will have a broad prospect.