Linear alternator for liquid piston thermoacoustic stirling engine

Prastowo Murti, Akira Takizawa, Tetsushi Biwa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A liquid piston thermoacoustic Stirling engine (LPTSE) is a Stirling engine that uses reciprocating motion of liquid columns (water) in U tubes in place of mechanical pistons, for letting the working gas (air) execute the Stirling thermodynamic cycles. This study aims at extracting electric power from the LPTSE using electromagnetic induction. The electromagnetic induction system consists of a permanent magnet installed in a submerged float within the liquid column and a solenoid coil. The electromotive force is induced when reciprocating motion of liquid column occurs inside the solenoid coil along the central axis. The submerged float also plays a role of suppressing the gas-liquid interface instability, which is a loss mechanism inherent to liquid piston engines. Because of its simplicity and use of air and water as the working fluids, we consider that the LPTSE electric generator could be an inexpensive and reliable device that is suitable for small scale electricity generation.

Original languageEnglish
Title of host publication"Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021
EditorsEleonora Carletti, Malcolm Crocker, Marek Pawelczyk, Jiri Tuma
PublisherSilesian University Press
ISBN (Electronic)9788378807995
Publication statusPublished - 2021
Event27th International Congress on Sound and Vibration, ICSV 2021 - Virtual, Online
Duration: 2021 Jul 112021 Jul 16

Publication series

Name"Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021

Conference

Conference27th International Congress on Sound and Vibration, ICSV 2021
CityVirtual, Online
Period21/7/1121/7/16

Keywords

  • Electricity generation
  • Liquid-piston engine
  • Stirling engine

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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