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Simultaneous optimization of four parameters in the stack unit of a thermoacoustic refrigerator

Thermoacoustic refrigerators are environmentally friendly cooling systems that use no refrigerants. Optimization of the performance of any cooling system is crucial for an efficient energy management. Most of the optimization techniques in thermoacoustic systems utilized to date involved experimenta...

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主要な著者: Zolpakar, Nor Atiqah, Mohd. Ghazali, Normah, Ahmad, Robiah
フォーマット: 論文
出版事項: World Scientific Publishing Co. Pte Ltd 2014
主題:
TJ Mechanical engineering and machinery
オンライン･アクセス:http://eprints.utm.my/id/eprint/59942/
http://dx.doi.org/10.1142/S2010132514500114
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spelling my.utm.599422022-04-23T23:46:45Z http://eprints.utm.my/id/eprint/59942/ Simultaneous optimization of four parameters in the stack unit of a thermoacoustic refrigerator Zolpakar, Nor Atiqah Mohd. Ghazali, Normah Ahmad, Robiah TJ Mechanical engineering and machinery Thermoacoustic refrigerators are environmentally friendly cooling systems that use no refrigerants. Optimization of the performance of any cooling system is crucial for an efficient energy management. Most of the optimization techniques in thermoacoustic systems utilized to date involved experimental and numerical parametric studies which are generally limited to the variations of the parameters to be optimized at discrete values. This study reports on the optimization of a thermoacoustic refrigerator using multi-objective genetic algorithm (MOGA). The study introduces the ability of MOGA to optimize four different variables which are length of stack, center position of stack, blockage ratio and drive ratio simultaneously. The four variables are optimized to achieve the two objectives; a maximum cooling and minimum acoustic power required at the stack and provide the optimum coefficient of performance, COP. The results show that the optimum COP = 1.35 with a cooling power of Qc = 6.57 W, acoustic power of Wn = 4.86 W and with the resonator diameter of D = 3.8 cm. World Scientific Publishing Co. Pte Ltd 2014 Article PeerReviewed Zolpakar, Nor Atiqah and Mohd. Ghazali, Normah and Ahmad, Robiah (2014) Simultaneous optimization of four parameters in the stack unit of a thermoacoustic refrigerator. International Journal of Air Conditioning and Refrigeration, 22 (2). p. 1450011. ISSN 2010-1325 http://dx.doi.org/10.1142/S2010132514500114 DOI:10.1142/S2010132514500114
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Zolpakar, Nor Atiqah
Mohd. Ghazali, Normah
Ahmad, Robiah
Simultaneous optimization of four parameters in the stack unit of a thermoacoustic refrigerator
description Thermoacoustic refrigerators are environmentally friendly cooling systems that use no refrigerants. Optimization of the performance of any cooling system is crucial for an efficient energy management. Most of the optimization techniques in thermoacoustic systems utilized to date involved experimental and numerical parametric studies which are generally limited to the variations of the parameters to be optimized at discrete values. This study reports on the optimization of a thermoacoustic refrigerator using multi-objective genetic algorithm (MOGA). The study introduces the ability of MOGA to optimize four different variables which are length of stack, center position of stack, blockage ratio and drive ratio simultaneously. The four variables are optimized to achieve the two objectives; a maximum cooling and minimum acoustic power required at the stack and provide the optimum coefficient of performance, COP. The results show that the optimum COP = 1.35 with a cooling power of Qc = 6.57 W, acoustic power of Wn = 4.86 W and with the resonator diameter of D = 3.8 cm.
format Article
author Zolpakar, Nor Atiqah
Mohd. Ghazali, Normah
Ahmad, Robiah
author_facet Zolpakar, Nor Atiqah
Mohd. Ghazali, Normah
Ahmad, Robiah
author_sort Zolpakar, Nor Atiqah
title Simultaneous optimization of four parameters in the stack unit of a thermoacoustic refrigerator
title_short Simultaneous optimization of four parameters in the stack unit of a thermoacoustic refrigerator
title_full Simultaneous optimization of four parameters in the stack unit of a thermoacoustic refrigerator
title_fullStr Simultaneous optimization of four parameters in the stack unit of a thermoacoustic refrigerator
title_full_unstemmed Simultaneous optimization of four parameters in the stack unit of a thermoacoustic refrigerator
title_sort simultaneous optimization of four parameters in the stack unit of a thermoacoustic refrigerator
publisher World Scientific Publishing Co. Pte Ltd
publishDate 2014
url http://eprints.utm.my/id/eprint/59942/
http://dx.doi.org/10.1142/S2010132514500114
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score 13.251813

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