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Performance Improvements and Parametric Design Strategies of an Updated Thermionic-photovoltaic Converter by Wangyang Li; Wanli Peng; Zhimin Yang; Guozhen Su; Shanhe Su; Jincan Chen is a Physics and Astronomy article available to read on EtoBox.

What is Performance Improvements and Parametric Design Strategies of an Updated Thermionic-photovoltaic Converter about?

A novel model of the hybrid converter consisting of a thermionic generator with a graphenebased anode and a photovoltaic (PV) cell is proposed. The power output densities and efficiencies of two single subsystems and the hybrid converter are derived. The effects of the emitter temperature, voltage outputs, and band gap energy on the performance of the hybrid converter are analyzed. The optimally operating bounds of several critical parameters including the power output density, efficiency, and voltage outputs of the hybrid converter are determined. It is found that in the optimally working region, the performance of the hybrid converter with a graphene-based anode is obviously better than that with a metallic anode. It is also found that in a certain temperature range, the maximum efficiency and power output density of the hybrid converter significantly exceed those of the thermionic generator or PV cell.

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Author

Wangyang Li; Wanli Peng; Zhimin Yang; Guozhen Su; Shanhe Su; Jincan Chen

Publisher

Royal Swedish Academy of Sciences; IOP Publishing; Institute of Physics Publishing (ISSN 0031-8949)

Published

2020

Language

EN

Field

Physics and Astronomy (Physical Sciences)