Design of two-stage thermoacoustic stirling engine coupled with push-pull linear alternator for waste heat recovery

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

Abstract

Thermoacoustics is suitable technology for recovering waste heat and generating electricity. In this paper, a novel thermoacoustic electricity generator using a push-pull linear alternator is proposed. It is aimed to recover part of the internal combustion engine exhaust waste heat and produce useful electricity. It consists of two half wave length identical stages and a linear alternator connected in between them. The physically identical stages produce identical wave halves with acoustic pressure out of phase. The availability of two points having the same pressure amplitude out of phase provides the opportunity to connect the linear alternator to two points in each stage to run the alternator in a "push and pull" mode. The proposed engine is able to produce more than 138.4W of electricity at thermal-to-electrical efficiency of 25.1% equivalent to a fraction of Carnot efficiency of 45.1% while using helium pressurized at 40 bar.
Original languageEnglish
Title of host publicationProceedings of the 24th IIR International Congress of Refrigeration (ICR)
Subtitle of host publicationImproving Quality of Life, Preserving the Earth, (Yokohama, Japan: 16-22 August 2015)
PublisherInternational Institute of Refrigeration
Number of pages8
ISBN (Print)9781510812062
DOIs
Publication statusPublished - 1 Aug 2015
Event24th IIR International Congress of Refrigeration: Improving Quality of Life, Preserving the Earth - Yokohama, Japan
Duration: 16 Aug 201522 Aug 2015
Conference number: 24
http://www.icr2015.org/ (Link to Conference Website )

Conference

Conference24th IIR International Congress of Refrigeration
Abbreviated titleICR 2015
CountryJapan
CityYokohama
Period16/08/1522/08/15
Internet address

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