Limiting thermionic energy conversion characteristics

被引：0

作者：

V. A. Zherebtsov

I. I. Kasikov

机构：

[1] State Science Center of the Russian Federation – Leipunskii Institute for Physics and Power Engineering (GNTs RF – FEI),

来源：

Atomic Energy | 2011年 / 110卷

关键词：

Work Function; Energy Converter; Thermionic Converter; Electronic Efficiency; Contact Potential Difference;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The limiting current–voltage characteristics, electronic efficiency, and the efficiency taking account of the radiative heat losses from the emitter for a diode thermionic energy converter operating in the regime of a low-voltage arc discharge are calculated. It is shown that for low-temperature energy converters (emitter temperature 1300–1600 K, current density 2–4 A/cm2) the efficiency does not exceed 20% even at low collector temperature – half the emitter temperature. The requirements for the work function of the electrodes that must be satisfied to obtain the limiting characteristics are determined. The relations and computational results obtained can be used to develop advanced thermionic power-generation facilities.

引用

页码：14 / 20

页数：6

共 8 条

[1]

Titkov AS(1978)On the optimization of the output characteristics of an ideal thermionic energy converter Zh. Tekh. Fiz. 48 767-769

[2]

Konoplev AA(1975)Empirical method of calculating the current–voltage characteristics of the discharge regime of a thermionic energy converter Zh. Tekh. Fiz. 45 314-319

[3]

Yuditskii VD(1969)On the current–voltage characteristics of a low-voltage arc discharge ibid. 39 1496-1505

[4]

Tushina LI(1997)Rydberg matter a long lived excited state of matter Zh. Eksp. Teor. Fiz. 111 1601-1610

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