Efficient thermionic energy conversion technology is the key technology for improving the thermoelectric conversion efficiency of thermionic fuel elements and promoting the space thermionic reactor power supply towards higher power and longer lifetime.To explore the key factors that improve the efficiency of thermionic energy conversion,this article starts from the basic principle of thermionic energy conversion and summarizes the methods to improve the thermoelectric conversion efficiency of thermionic fuel elements from three aspects:improvement of the emitter,improvement of the collector,and reduction of arc voltage drop.Analysis shows that the clear direction for significantly improving thermoelectric conversion efficiency is the improvement of the collector,and the key is the development of a new generation of low absorption cesium work function collector materials.
关键词
高效热离子能量转换技术/热离子燃料元件/热电转换效率/接收极材料
Key words
Efficient thermionic energy conversion technology/Thermionic fuel elements/Thermoelectric conversion efficiency/Collector material
维普
万方数据