Influence of stack geometry and resonator length on the performance of thermoacoustic engine

Hariharan, NM and Sivashanmugam, P and Kasthurirengan, S (2012) Influence of stack geometry and resonator length on the performance of thermoacoustic engine. In: APPLIED ACOUSTICS, 73 (10). pp. 1052-1058.

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Abstract

Thermoacoustic engines convert heat energy into high amplitude sound waves, which is used to drive thermoacoustic refrigerator or pulse tube cryocoolers by replacing the mechanical pistons such as compressors. The increasing interest in thermoacoustic technology is of its potentiality of no exotic materials, low cost and high reliability compared to vapor compression refrigeration systems. The experimental setup has been built based on the linear thermoacoustic model and some simple design parameters. The engines produce acoustic energy at the temperature difference of 325-450 K imposed along the stack of the system. This work illustrates the influence of stack parameters such as plate thickness (PT) and plate spacing (PS) with resonator length on the performance of thermoacoustic engine, which are measured in terms of onset temperature difference, resonance frequency and pressure amplitude using air as a working fluid. The results obtained from the experiments are in good agreement with the theoretical results from DeltaEc. (C) 2012 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	APPLIED ACOUSTICS
Publisher:	ELSEVIER SCI LTD
Additional Information:	Copy right for this article belongs to Elsevier Ltd
Keywords:	Performance;Plate spacing;Plate thickness;Resonator length;Thermoacoustic primemover
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology
Date Deposited:	12 Aug 2012 09:57
Last Modified:	13 Aug 2012 09:51
URI:	http://eprints.iisc.ac.in/id/eprint/44935

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