一种基于引射式预混燃烧器的新型高温温差发电系统  

A NOVEL HIGH TEMPERATURE THERMOELECTRIC GENERATION SYSTEM WITH A INJECTION DRIVEN PREMIXED BURNER

作　　者：许昊煜 苟小龙[1] 平会峰 米云[1] 卿绍伟[1] 

机构地区：[1]重庆大学动力工程学院,重庆400044

出　　处：《太阳能学报》2017年第5期1240-1246,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(91441112);中央高校基本科研业务费(CDJPY14140001)

摘　　要：高温温差发电系统(TEG)由于在分布式能源和耦合热电提高系统效率等方面具有显著的特点而受到关注,但系统特性认识的缺乏阻碍了其发展与应用。为了优化燃烧过程及热端传热性能进而提高系统的发电效率,采用数值模拟的手段研究不同结构引射式预混燃烧器对系统性能的影响,获得优化的燃烧器结构。设计并搭建一种基于引射式预混燃烧器的新型高温温差发电实验台,实验结果证明模拟结果的正确性,经过燃烧器优化后的高温温差发电系统其热电(TE)模块热端温度更高、温度分布更均匀,系统的输出功率和发电效率得到较大的提高。The high temperature thermoelectric generation （TEG） system earns attention in several fields including distributed energy sources and the improvement of the efficiency of TEG system due to its distinct performance. However, the lack of research on the high temperature TEG system characteristic hinders the development and the application of it. In order to optimize the combustion process and strengthen the heat transfer, different structures of the premixed injection driven burner have been tested using numerical simulation method to study the influences on the system, so that the efficiency of the system can be improved. Meanwhile the optimum structure of burner is obtained. Accordingly, a novel high temperature TEG system with the premixed injection driven burner is designed and built. The experimental results showed that the simulative results are reliable, and the TEG system with the optimized burner has a higher temperature and more uniform temperature distribution on the hot side of the thermoelectric （TE） modules. The output power and efficiency of the system has been improved.

关 键 词：温差发电 系统效率 强化换热 燃烧器 引射器 

分 类 号：TM619[电气工程—电力系统及自动化]