Output Characteristics of Solar-Power-Driven Thermionic Energy Converter

2004 ◽  
Vol 43 (1) ◽  
pp. 309-314 ◽  
Author(s):  
Akihisa Ogino ◽  
Toshiya Muramatsu ◽  
Masashi Kando
Keyword(s):  
Solar Power ◽  
Energy Converter ◽  
Output Characteristics ◽  
Thermionic Energy

Effects of heat transfer on characteristics of thermionic energy converter

2018 ◽  
Vol 96 (12) ◽  
pp. 1247-1258
Author(s):  
Weiwei Zhu ◽  
Cong Ji ◽  
Fan Gu
Keyword(s):  
Heat Transfer ◽  
Current Density ◽  
Large Scale ◽  
Thermionic Emission ◽  
Electrical Energy ◽  
Output Current ◽  
Energy Converter ◽  
Emitter Temperature ◽  
Output Characteristics ◽  
Thermionic Energy

Photon enhanced thermionic emission (PETE) is a new concept in solar energy conversion, combining thermal and photovoltaic carrier excitations with thermionic emission. A solar-power-driven thermionic energy converter operates by illuminating the solar light condensed by a large-scale Fresnel lens to convert heat energy into electrical energy. By enhancing the efficiency of converting solar radiation into the emitter internal energy, the output power and efficiency of the thermionic energy converter can be greatly improved. In this study, using numerical simulations, the effects of emitter temperature and output characteristics on a thermionic energy converter were investigated. The results showed that the higher rate of the heating power represented the higher temperature of an emitter, as well as output current density, and efficiency. In addition, by reducing the diameter of a collector and thermal conductivity of insulation materials, or increasing the diameter of emitter, the temperature of emitter, output current density, and efficiency could be notably improved. It is also worth mentioning that the main factor that affected the emitter temperature in the process of heat transfer was heat conduction between solids. In conclusion, adequate illumination, reasonable size of collector and emitter, as well as appropriate insulation measurements could efficiently improve the output characteristics of thermionic energy converter.

Thermionic energy conversion for concentrating solar power

2017 ◽  
Vol 208 ◽  
pp. 1318-1342 ◽  
Author(s):  
Gang Xiao ◽  
Guanghua Zheng ◽  
Min Qiu ◽  
Qiang Li ◽  
Dongsheng Li ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Solar Power ◽  
Concentrating Solar Power ◽  
Thermionic Energy Conversion ◽  
Thermionic Energy

Construction of a Thermionic Energy Converter

1960 ◽  
Vol 48 (11) ◽  
pp. 1846-1852 ◽  
Author(s):  
F. Block ◽  
G. Eastman ◽  
F. Corregan ◽  
J. Fendley ◽  
K. Hernqvist ◽  
...  
Keyword(s):  
Energy Converter ◽  
Thermionic Energy
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