Effects of Total Pressures on Performances of a Disk MHD Generator

Yoshinori Saito; Hiroyuki Yamasaki; Kazumi Tsunoda; Nobuhiro Harada; Kunio Yoshikawa; Shigeharu Kabashima; Susumu Shioda

doi:10.1299/kikaib.57.995

Effects of Total Pressures on Performances of a Disk MHD Generator

Yoshinori Saito, Hiroyuki Yamasaki, Kazumi Tsunoda, Nobuhiro Harada, Kunio Yoshikawa, Shigeharu Kabashima, Susumu Shioda

Research output: Contribution to journal › Article

Abstract

Effects of total pressures on performances of a disk MHD generator were studied. Current-voltage characteristics, power outputs, distributions of both static pressure and Hall potential and swirl were measured at two different total pressures. The experimental results show that at the low total pressure, the current-voltage characteristics become steep, and as a result, the maximum power output is obtained at higher load resistances. It was observed that the enthalpy extraction rate was kept almost constant although the power output decreased at the low total pressure. These phenomena can be explained by the change of the Hall parameters, flow velocities and swirls in the MHD channel.

Original language	English
Pages (from-to)	995-1001
Number of pages	7
Journal	Transactions of the Japan Society of Mechanical Engineers Series B
Volume	57
Issue number	535
DOIs	https://doi.org/10.1299/kikaib.57.995
Publication status	Published - 1991 Jan 1
Externally published	Yes

Keywords

Closed Cycle MHD
Disk Channel
Enthalpy Extraction Rate
Hall Parameter
Lorentz Force
MHD Power Generation
Supersonic Flow
Swirl
Total Pressure

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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Saito, Y., Yamasaki, H., Tsunoda, K., Harada, N., Yoshikawa, K., Kabashima, S., & Shioda, S. (1991). Effects of Total Pressures on Performances of a Disk MHD Generator. Transactions of the Japan Society of Mechanical Engineers Series B, 57(535), 995-1001. https://doi.org/10.1299/kikaib.57.995

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abstract = "Effects of total pressures on performances of a disk MHD generator were studied. Current-voltage characteristics, power outputs, distributions of both static pressure and Hall potential and swirl were measured at two different total pressures. The experimental results show that at the low total pressure, the current-voltage characteristics become steep, and as a result, the maximum power output is obtained at higher load resistances. It was observed that the enthalpy extraction rate was kept almost constant although the power output decreased at the low total pressure. These phenomena can be explained by the change of the Hall parameters, flow velocities and swirls in the MHD channel.",

keywords = "Closed Cycle MHD, Disk Channel, Enthalpy Extraction Rate, Hall Parameter, Lorentz Force, MHD Power Generation, Supersonic Flow, Swirl, Total Pressure",

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AU - Yoshikawa, Kunio

AU - Kabashima, Shigeharu

AU - Shioda, Susumu

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