Fundamental Study on the Electrodes for Alkali Metal Thermoelectric Converter (3rd Report, the Performance of Current Collection Structure with Porous Metal)

Kotaro Tanaka; Akira Negishi; Toshihisa Masuda

doi:10.1299/kikaib.58.1240

Fundamental Study on the Electrodes for Alkali Metal Thermoelectric Converter (3rd Report, the Performance of Current Collection Structure with Porous Metal)

Kotaro Tanaka, Akira Negishi, Toshihisa Masuda

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The alkali metal thermoelectric converter (AMTEC) is an efficient device for the direct conversion of heat to electricity. A new method to supply thermal energy to beta”-alumina solid electrolyte (BASE) tubes is proposed in this paper. Porous metal inserted between a high-temperature thermal source and the BASE tubes not only collects current generated from electrodes but also enhances the heat transfer. An experimental study has been conducted on the disturbance of vapor flow through the porous metal. Its effect on the AMTEC performance has been examined. The calculated results indicate that the sodium vapor flow resistance converted into temperatre difference is in the range from 20 K to 50 K and the expected increase of power density with porous metal current collection structure is ~50%. The influence of potential drop along the electrode is also discussed.

Original language	English
Pages (from-to)	1240-1245
Number of pages	6
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	58
Issue number	548
DOIs	https://doi.org/10.1299/kikaib.58.1240
Publication status	Published - 1992
Externally published	Yes

Keywords

Direct Energy Conversion
Energy Conversion
Heat Transfer Enhancement
Porous Media
Solid Electrolyte
Thermal Efficiency

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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Fundamental Study on the Electrodes for Alkali Metal Thermoelectric Converter (3rd Report, the Performance of Current Collection Structure with Porous Metal). / Tanaka, Kotaro; Negishi, Akira; Masuda, Toshihisa.

In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 58, No. 548, 1992, p. 1240-1245.

Research output: Contribution to journal › Article › peer-review

Tanaka, K, Negishi, A & Masuda, T 1992, 'Fundamental Study on the Electrodes for Alkali Metal Thermoelectric Converter (3rd Report, the Performance of Current Collection Structure with Porous Metal)', Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, vol. 58, no. 548, pp. 1240-1245. https://doi.org/10.1299/kikaib.58.1240

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AB - The alkali metal thermoelectric converter (AMTEC) is an efficient device for the direct conversion of heat to electricity. A new method to supply thermal energy to beta”-alumina solid electrolyte (BASE) tubes is proposed in this paper. Porous metal inserted between a high-temperature thermal source and the BASE tubes not only collects current generated from electrodes but also enhances the heat transfer. An experimental study has been conducted on the disturbance of vapor flow through the porous metal. Its effect on the AMTEC performance has been examined. The calculated results indicate that the sodium vapor flow resistance converted into temperatre difference is in the range from 20 K to 50 K and the expected increase of power density with porous metal current collection structure is ~50%. The influence of potential drop along the electrode is also discussed.

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Fundamental Study on the Electrodes for Alkali Metal Thermoelectric Converter (3rd Report, the Performance of Current Collection Structure with Porous Metal)

Abstract

Keywords

ASJC Scopus subject areas

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