Effect of resonator length and working fluid on the performance of twin thermoacoustic heat engine - experimental and simulation studies

Hariharan, NM and Sivashanmugam, P and Kasthurirengan, S (2013) Effect of resonator length and working fluid on the performance of twin thermoacoustic heat engine - experimental and simulation studies. In: Computers & Fluids, 75 . pp. 51-55.

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Abstract

Success in the advancement of thermoacoustic field led the researchers to develop the thermoacoustic engines which found its applications in various fields such as refrigeration, gas mixture separation, natural gas liquefaction, and cryogenics. The objective of this study is to design and fabricate the twin thermoacoustic heat engine (TAHE) producing the acoustic waves with high resonance frequencies which is used to drive a thermoacoustic refrigerator efficiently by the influence of geometrical parameters and working fluids. Twin TAHE has gained significant attention due to the production of high intensity acoustic waves than single TAHE. In order to drive an efficient thermoacoustic refrigerator, a twin thermoacoustic heat engine is built up and its performance are analysed by varying the resonator length and working fluid. The performance is measured in terms of onset temperature difference, resonance frequency and pressure amplitude of the oscillations generated from twin TAHE. The simulation is performed using free software DeltaEC, from LANL, USA. The simulated DeltaEC results are compared with experimental results and the deviations are found within +10%.

Item Type:	Journal Article
Publication:	Computers & Fluids
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Twin Thermoacoustic Heat Engine; Resonator Length; Working Fluid; Performance; DeltaEC
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology
Date Deposited:	27 May 2013 10:57
Last Modified:	27 May 2013 10:57
URI:	http://eprints.iisc.ac.in/id/eprint/46571

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