Two-Stage Thermoacoustic Electricity Generator for Waste Heat Recovery

A Hamood, X Mao, AJ Jaworski

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

Abstract

This paper presents the design, construction and tests of a two-stage traveling-wave thermoacoustic electricity generator. The engine designed has two stages with a Linear Alternator connected in between two points having equal but out of phase acoustic pressure amplitudes. The connection of Linear Alternator in this configuration allows it to be run by the effect of acoustic pressure on both sides and work in a "push-pull" mode. Pressurized helium at 28 bar is used as working gas and operating frequency is 54.68 Hz. In the experiments, a maximum generated electricity and thermal-to-electric efficiency of 48.6 W and 2.7% are obtained, respectively, when the temperature difference across the regenerator reaches 300˚C at 30.8 Ω load resistance. The research results shown in this paper demonstrate that two identical half-wave length stages can run a linear alternator in “push-pull” mode.
LanguageEnglish
Title of host publicationProceedings of World Congress on Engineering, (London, 29 June - 1 July 2016)
EditorsS.I. Ao, Len Gelman, David W.L. Hukins, Andrew Hunter, A.M. Korsunsky
PublisherNewswood Limited
Pages944-949
Number of pages6
VolumeII
ISBN (Print)9789881404800
Publication statusPublished - 1 Jul 2016
Externally publishedYes
EventInternational Association of Engineers World Congress on Engineering 2016 - London, United Kingdom
Duration: 29 Jun 20161 Jul 2016
http://www.iaeng.org/WCE2016/ (Link to Conference Website)

Publication series

NameLecture Notes in Engineering and Computer Science
PublisherNewswood
Volume2224
ISSN (Print)2078-0958
ISSN (Electronic)2078-0966

Conference

ConferenceInternational Association of Engineers World Congress on Engineering 2016
Abbreviated titleWCE 2016
CountryUnited Kingdom
CityLondon
Period29/06/161/07/16
Internet address

Fingerprint

Thermoacoustics
Waste heat utilization
Electricity
Acoustics
Regenerators
Helium
Engines
Wavelength
Gases
Experiments
Temperature
Hot Temperature

Cite this

Hamood, A., Mao, X., & Jaworski, AJ. (2016). Two-Stage Thermoacoustic Electricity Generator for Waste Heat Recovery. In S. I. Ao, L. Gelman, D. W. L. Hukins, A. Hunter, & A. M. Korsunsky (Eds.), Proceedings of World Congress on Engineering, (London, 29 June - 1 July 2016) (Vol. II, pp. 944-949). (Lecture Notes in Engineering and Computer Science; Vol. 2224). Newswood Limited.
Hamood, A ; Mao, X ; Jaworski, AJ. / Two-Stage Thermoacoustic Electricity Generator for Waste Heat Recovery. Proceedings of World Congress on Engineering, (London, 29 June - 1 July 2016). editor / S.I. Ao ; Len Gelman ; David W.L. Hukins ; Andrew Hunter ; A.M. Korsunsky. Vol. II Newswood Limited, 2016. pp. 944-949 (Lecture Notes in Engineering and Computer Science).
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title = "Two-Stage Thermoacoustic Electricity Generator for Waste Heat Recovery",
abstract = "This paper presents the design, construction and tests of a two-stage traveling-wave thermoacoustic electricity generator. The engine designed has two stages with a Linear Alternator connected in between two points having equal but out of phase acoustic pressure amplitudes. The connection of Linear Alternator in this configuration allows it to be run by the effect of acoustic pressure on both sides and work in a {"}push-pull{"} mode. Pressurized helium at 28 bar is used as working gas and operating frequency is 54.68 Hz. In the experiments, a maximum generated electricity and thermal-to-electric efficiency of 48.6 W and 2.7{\%} are obtained, respectively, when the temperature difference across the regenerator reaches 300˚C at 30.8 Ω load resistance. The research results shown in this paper demonstrate that two identical half-wave length stages can run a linear alternator in “push-pull” mode.",
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Hamood, A, Mao, X & Jaworski, AJ 2016, Two-Stage Thermoacoustic Electricity Generator for Waste Heat Recovery. in SI Ao, L Gelman, DWL Hukins, A Hunter & AM Korsunsky (eds), Proceedings of World Congress on Engineering, (London, 29 June - 1 July 2016). vol. II, Lecture Notes in Engineering and Computer Science, vol. 2224, Newswood Limited, pp. 944-949, International Association of Engineers World Congress on Engineering 2016, London, United Kingdom, 29/06/16.

Two-Stage Thermoacoustic Electricity Generator for Waste Heat Recovery. / Hamood, A; Mao, X; Jaworski, AJ.

Proceedings of World Congress on Engineering, (London, 29 June - 1 July 2016). ed. / S.I. Ao; Len Gelman; David W.L. Hukins; Andrew Hunter; A.M. Korsunsky. Vol. II Newswood Limited, 2016. p. 944-949 (Lecture Notes in Engineering and Computer Science; Vol. 2224).

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

TY - GEN

T1 - Two-Stage Thermoacoustic Electricity Generator for Waste Heat Recovery

AU - Hamood, A

AU - Mao, X

AU - Jaworski, AJ

PY - 2016/7/1

Y1 - 2016/7/1

N2 - This paper presents the design, construction and tests of a two-stage traveling-wave thermoacoustic electricity generator. The engine designed has two stages with a Linear Alternator connected in between two points having equal but out of phase acoustic pressure amplitudes. The connection of Linear Alternator in this configuration allows it to be run by the effect of acoustic pressure on both sides and work in a "push-pull" mode. Pressurized helium at 28 bar is used as working gas and operating frequency is 54.68 Hz. In the experiments, a maximum generated electricity and thermal-to-electric efficiency of 48.6 W and 2.7% are obtained, respectively, when the temperature difference across the regenerator reaches 300˚C at 30.8 Ω load resistance. The research results shown in this paper demonstrate that two identical half-wave length stages can run a linear alternator in “push-pull” mode.

AB - This paper presents the design, construction and tests of a two-stage traveling-wave thermoacoustic electricity generator. The engine designed has two stages with a Linear Alternator connected in between two points having equal but out of phase acoustic pressure amplitudes. The connection of Linear Alternator in this configuration allows it to be run by the effect of acoustic pressure on both sides and work in a "push-pull" mode. Pressurized helium at 28 bar is used as working gas and operating frequency is 54.68 Hz. In the experiments, a maximum generated electricity and thermal-to-electric efficiency of 48.6 W and 2.7% are obtained, respectively, when the temperature difference across the regenerator reaches 300˚C at 30.8 Ω load resistance. The research results shown in this paper demonstrate that two identical half-wave length stages can run a linear alternator in “push-pull” mode.

KW - Electricity generator

KW - Push-pull

KW - Thermoacoustic

KW - Traveling wave

M3 - Conference contribution

SN - 9789881404800

VL - II

T3 - Lecture Notes in Engineering and Computer Science

SP - 944

EP - 949

BT - Proceedings of World Congress on Engineering, (London, 29 June - 1 July 2016)

A2 - Ao, S.I.

A2 - Gelman, Len

A2 - Hukins, David W.L.

A2 - Hunter, Andrew

A2 - Korsunsky, A.M.

PB - Newswood Limited

ER -

Hamood A, Mao X, Jaworski AJ. Two-Stage Thermoacoustic Electricity Generator for Waste Heat Recovery. In Ao SI, Gelman L, Hukins DWL, Hunter A, Korsunsky AM, editors, Proceedings of World Congress on Engineering, (London, 29 June - 1 July 2016). Vol. II. Newswood Limited. 2016. p. 944-949. (Lecture Notes in Engineering and Computer Science).