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.
|Title of host publication||Proceedings of World Congress on Engineering, (London, 29 June - 1 July 2016)|
|Editors||S.I. Ao, Len Gelman, David W.L. Hukins, Andrew Hunter, A.M. Korsunsky|
|Number of pages||6|
|Publication status||Published - 1 Jul 2016|
|Event||International Association of Engineers World Congress on Engineering 2016 - London, United Kingdom|
Duration: 29 Jun 2016 → 1 Jul 2016
http://www.iaeng.org/WCE2016/ (Link to Conference Website)
|Name||Lecture Notes in Engineering and Computer Science|
|Conference||International Association of Engineers World Congress on Engineering 2016|
|Abbreviated title||WCE 2016|
|Period||29/06/16 → 1/07/16|
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.