Computational fluid dynamics simulation of open ended thermoacoustic prime mover with straight and tapered resonator

Muralidharan, Haritha and Hariharan, NM and Perarasu, VT and Sivashanmugam, P and Kasthurirengan, S (2013) Computational fluid dynamics simulation of open ended thermoacoustic prime mover with straight and tapered resonator. In: HVAC&R Research, 19 (3). pp. 208-212.

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Abstract

A thermoacoustic refrigerator driven by a thermoacoustic primemover is an effective way to produce durable and long lasting refrigeration due to high reliability, no exotic materials, and no moving parts. Resonator geometry is also one of the important factors that influence the performance of a thermoacoustic prime mover, namely, frequency. Computational fluid dynamics simulation of performance comparison of thermoacoustic prime mover with a straight and tapered resonator is chosen for the present study under an identical stack condition with the air as a working fluid. The frequency and pressure amplitude of oscillations obtained from simulation results were found to be more in the tapered resonator than the straight resonator. Apart from computational fluid dynamics simulation, the simulation studies have also been conducted using design environment for low-amplitude thermoacoustic energy conversion, which predicts the performance of thermoacoustic primemover comparatively well. Simulation results from computational fluid dynamics and design environment for low-amplitude thermoacoustic energy conversion were compared and found to be matching well, representing the good validity of computational fluid dynamics modeling.

Item Type:	Journal Article
Publication:	HVAC&R Research
Publisher:	Taylor and Francis Ltd
Additional Information:	Copyright of this article belongs to Taylor and Francis Ltd.
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology
Date Deposited:	10 Jun 2013 08:11
Last Modified:	10 Jun 2013 08:12
URI:	http://eprints.iisc.ac.in/id/eprint/46652

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