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Experimental and simulation studies on the performance of standing wave thermoacoustic prime mover for pulse tube refrigerator

Kamble, Bharatbhushan V and Kuzhiveli, Biju T and Kasthurirengan, S and Behera, Upendra (2013) Experimental and simulation studies on the performance of standing wave thermoacoustic prime mover for pulse tube refrigerator. In: INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 36 (8). pp. 2410-2419.

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Official URL: http://dx.doi.org/10.1016/j.ijrefrig.2013.08.001

Abstract

The thermoacoustic prime mover (TAPM) has gained considerable attention as a pressure wave generator to drive pulse tube refrigerator (PTR) due to no moving parts, reasonable efficiency, use of environmental friendly working fluids etc. To drive PTCs, lower frequencies (f) with larger pressure amplitudes (Delta P) are essential, which are affected by geometric and operating parameters of TAPM as well as working fluids. For driving PTRs, a twin standing wave TAPM is built and studied by using different working fluids such as helium, argon, nitrogen and their binary mixtures. Simulation results of DeltaEc are compared with experimental data wherever possible. DeltaEc predicts slightly increased resonance frequencies, but gives larger Delta P and lower temperature difference Delta T across stack. High mass number working fluid leads to lower frequency with larger Delta P, but higher Delta T. Studies indicate that the binary gas mixture of right composition with lower Delta T can be arrived at to drive TAPM of given geometry. (C) 2013 Elsevier Ltd and IIR. All rights reserved.

Item Type: Journal Article
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Additional Information: Copyright for this article belongs to the ELSEVIER SCI LTD, ENGLAND
Keywords: Standing-wave; Thermoacoustics; Prime mover; DeltaEc; Cryocoolers; Simulation
Department/Centre: Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology
Date Deposited: 07 Mar 2014 07:33
Last Modified: 07 Mar 2014 07:33
URI: http://eprints.iisc.ernet.in/id/eprint/48505

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