Optimization and Analysis of an Output Performance Calculation Model for a Cesium Thermionic Energy Converter

doi:10.1007/s11664-022-10010-4

	Optimization and Analysis of an Output Performance Calculation Model for a Cesium Thermionic Energy Converter
	Zhao, Ming 1,2; Fang, Shuoyang 2,3; Jiang, Zhizhong 1,2; Li, Yukun 1,2; Yu, Jie 1,2
刊名	JOURNAL OF ELECTRONIC MATERIALS
	2022-11-08
关键词	Thermionic energy converter cesium power density conversion efficiency
ISSN号	0361-5235
DOI	10.1007/s11664-022-10010-4
通讯作者	Jiang, Zhizhong(zhizhong.jiang@inest.cas.cn)
英文摘要	We propose a modified Kuznetsov model to calculate the output performance of a cesium thermionic energy converter (TEC). Based on this model, it can be found that the power density and conversion efficiency increase continuously as the emitter temperature increases. Reducing the work function of the emitter can significantly increase the power density, whereas the conversion efficiency with the change of the work function shows a parabolic trend with a downward-facing opening. The power density of the TEC has an approximate step function relation with the collector temperature, which should be selected at the inflection point of the function curve during device design. Considering the effects of electrode spacing and cesium vapor pressure, the product of the two influencing factors should be kept at approximately 74 Pa mm to reduce the barrier level of the electrode gap. Through further structural optimization design, the conversion efficiency of the TEC could be improved at a 1600 K emitter temperature.
资助项目	National Natural Science Foundation of China[2180051117] ; National Magnetic Confinement Fusion Program of China[2018YFE0312200]
WOS关键词	WORK
WOS研究方向	Engineering ; Materials Science ; Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000880252000002
资助机构	National Natural Science Foundation of China ; National Magnetic Confinement Fusion Program of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/130160]
专题	中国科学院合肥物质科学研究院
通讯作者	Jiang, Zhizhong
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Nucl Energy Safety Technol, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 3.North China Univ Water Resources & Elect Power, Sch Elect Power, Zhengzhou 450045, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Ming,Fang, Shuoyang,Jiang, Zhizhong,et al. Optimization and Analysis of an Output Performance Calculation Model for a Cesium Thermionic Energy Converter[J]. JOURNAL OF ELECTRONIC MATERIALS,2022.
APA	Zhao, Ming,Fang, Shuoyang,Jiang, Zhizhong,Li, Yukun,&Yu, Jie.(2022).Optimization and Analysis of an Output Performance Calculation Model for a Cesium Thermionic Energy Converter.JOURNAL OF ELECTRONIC MATERIALS.
MLA	Zhao, Ming,et al."Optimization and Analysis of an Output Performance Calculation Model for a Cesium Thermionic Energy Converter".JOURNAL OF ELECTRONIC MATERIALS (2022).