Design Construction and Performance of 10W Thermoacoustic Refrigerators

Prashantha, BG and Govinde Gowda, MS and Seetharamu, S and Narasimham, GSVL (2017) Design Construction and Performance of 10W Thermoacoustic Refrigerators. In: International Journal of Air-Conditioning and Refrigeration, 25 (3). p. 1750023. ISSN 2010-1325

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Abstract

In this paper, the construction and performance of the 10W cooling power thermoacoustic refrigerators designed for a temperature difference of 120 K at 3% drive ratio are discussed. The construction and assembly procedure of the optimized thermoacoustic refrigerator components viz. spiral stack, heat exchangers, 0.28λ-taper, small diameter tube and divergent section with hemispherical end (TSDH) and 0.24λ-taper and divergent section with hemispherical end (TDH) resonator designs and loudspeaker found in the published literature, and instrumentation are discussed. The performance of the 0.28λ-TSDH, and 0.24λ-TDH resonator designs, and the uncertainties involved in the experimental measurements are discussed. Both the resonator designs show good behavior. A decent low temperature of -11.3°C and -8.7°C at 10W cooling power is achieved at the cold heat exchanger for the 0.28λ-TSDH and 0.24λ-TDH resonator designs, respectively. The comparative analysis of the experimental results with the theoretical and DeltaEC results is discussed.

Item Type:	Journal Article
Publication:	International Journal of Air-Conditioning and Refrigeration
Publisher:	World Scientific Publishing Co. Pte Ltd
Additional Information:	The copyright for this article belongs to the World Scientific Publishing Co.Pte Ltd
Keywords:	CDH; DeltaEC; TDH; Thermoacoustic; TSDH
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	14 Jun 2022 06:01
Last Modified:	14 Jun 2022 06:01
URI:	https://eprints.iisc.ac.in/id/eprint/73463

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