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Simulation studies on the performance of thermoacoustic prime movers and refrigerator

Skaria, Mathew and Rasheed, Abdul KK and Shafi, KA and Kasthurirengan, S and Behera, Upendra (2015) Simulation studies on the performance of thermoacoustic prime movers and refrigerator. In: COMPUTERS & FLUIDS, 111 . pp. 127-136.

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Official URL: http://dx.doi.org/10.1016/j.compfluid.2015.01.011

Abstract

The prime movers and refrigerators based on thermoacoustics have gained considerable importance toward practical applications in view of the absence of moving components, reasonable efficiency, use of environmental friendly working fluids, etc. Devices such as twin Standing Wave ThermoAcoustic Prime Mover (SWTAPM), Traveling Wave ThermoAcoustic Prime Mover (TWTAPM) and thermoacoustically driven Standing Wave ThermoAcoustic Refrigerator (SWTAR) have been studied by researchers. The numerical modeling and simulation play a vital role in their development. In our efforts to build the above thermoacoustic systems, we have carried out numerical analysis using the procedures of CFD on the above systems. The results of the analysis are compared with those of DeltaEC (freeware from LANL, USA) simulations and the experimental results wherever possible. For the CFD analysis commercial code Fluent 6.3.26 has been used along with the necessary boundary conditions for different working fluids at various average pressures. The results of simulation indicate that choice of the working fluid and the average pressure are critical to the performance of the above thermoacoustic devices. Also it is observed that the predictions through the CFD analysis are closer to the experimental results in most cases, compared to those of DeltaEC simulations. (C) 2015 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
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Additional Information: Copy right for this article belongs to the PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Keywords: CFD; Thermoacoustics; Prime mover; Refrigerator; Working fluid; Average pressure
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 28 Apr 2015 07:20
Last Modified: 28 Apr 2015 07:20
URI: http://eprints.iisc.ernet.in/id/eprint/51418

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