Proposal for a Liquid-piston Steam Engine

Proposal for a Liquid-piston Steam Engine

A novel liquid-piston steam engine, which can achieve high efficiency in the low-temperature region of T < 300°C as well as high reliability and low cost, has been developed. In this study, the steam engine achieved a thermal efficiency of 12.7% at heating and cooling temperatures of 270 and 90°C...

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Veröffentlicht in:TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 2012/01/25, Vol.47(1), pp.58-64
Hauptverfasser: YATSUZUKA, Shinichi, FUKUDA, Kentaro, NIIYAMA, Yasunori, HAGIWARA, Yasumasa, NISHIZAWA, Kazutoshi, SHIKAZONO, Naoki
Format: Artikel
Sprache:eng
Schlagworte:
Carnot cycle
Devices
Direct power generation
Heating
liquid-piston steam cycle
Proposals
sintered metal
Steam engines
Superconductivity
Thermal efficiency
waste heat regeneration
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Beschreibung
Zusammenfassung:A novel liquid-piston steam engine, which can achieve high efficiency in the low-temperature region of T < 300°C as well as high reliability and low cost, has been developed. In this study, the steam engine achieved a thermal efficiency of 12.7% at heating and cooling temperatures of 270 and 90°C, respectively, when sintered metal was employed in the heating section. This efficiency value is approximately 40% that of the Carnot cycle. There are expectations for this liquid-piston steam engine to be used as a energy conversion device for waste heat recovery systems.
ISSN:0389-2441
1880-0408
DOI:10.2221/jcsj.47.58