Solid-State Thermionic Power Generators: An Analytical Analysis in the Nonlinear Regime

Solid-State Thermionic Power Generators: An Analytical Analysis in the Nonlinear Regime Solid-state thermionic power generators are an alternative to thermoelectric modules. In this paper, we develop an analytical model to investigate the performance of these generators in the nonlinear regime. We identify dimensionless parameters determining their performance and provide measures to estimate an acceptable range of thermal and electrical resistances of thermionic generators. We find the relation between the optimum load resistance and the internal resistance and suggest guidelines for the design of thermionic power generators. Finally, we show that in the nonlinear regime, thermionic power generators can have efficiency values higher than the state-of-the-art thermoelectric modules. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review Applied American Physical Society (APS)

Solid-State Thermionic Power Generators: An Analytical Analysis in the Nonlinear Regime

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Solid-State Thermionic Power Generators: An Analytical Analysis in the Nonlinear Regime

Abstract

Solid-state thermionic power generators are an alternative to thermoelectric modules. In this paper, we develop an analytical model to investigate the performance of these generators in the nonlinear regime. We identify dimensionless parameters determining their performance and provide measures to estimate an acceptable range of thermal and electrical resistances of thermionic generators. We find the relation between the optimum load resistance and the internal resistance and suggest guidelines for the design of thermionic power generators. Finally, we show that in the nonlinear regime, thermionic power generators can have efficiency values higher than the state-of-the-art thermoelectric modules.
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Publisher
The American Physical Society
Copyright
Copyright © © 2017 American Physical Society
eISSN
2331-7019
D.O.I.
10.1103/PhysRevApplied.8.014008
Publisher site
See Article on Publisher Site

Abstract

Solid-state thermionic power generators are an alternative to thermoelectric modules. In this paper, we develop an analytical model to investigate the performance of these generators in the nonlinear regime. We identify dimensionless parameters determining their performance and provide measures to estimate an acceptable range of thermal and electrical resistances of thermionic generators. We find the relation between the optimum load resistance and the internal resistance and suggest guidelines for the design of thermionic power generators. Finally, we show that in the nonlinear regime, thermionic power generators can have efficiency values higher than the state-of-the-art thermoelectric modules.

Journal

Physical Review AppliedAmerican Physical Society (APS)

Published: Jul 1, 2017

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