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Thermal performance of optimized interrupted microchannel heat sink (IMCHS) using nanofluids

An interrupted microchannel heat sink (IMCHS) using nanofluids as working fluids is analyzed numerically to increase the heat transfer rate. The rectangular IMCHS is designed with length and width of 10mm and 0.057mm respectively while optimum cut section number, n c=3. The three dimensional governi...

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Main Authors: Mat Tokit, E., Mohammed, Hussein A., Yusoff, M. Z.
Format: Article
Published: Elsevier 2012
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/33905/
http://dx.doi.org/10.1016/j.icheatmasstransfer.2012.10.013
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spelling my.utm.339052018-11-30T06:41:26Z http://eprints.utm.my/id/eprint/33905/ Thermal performance of optimized interrupted microchannel heat sink (IMCHS) using nanofluids Mat Tokit, E. Mohammed, Hussein A. Yusoff, M. Z. TJ Mechanical engineering and machinery An interrupted microchannel heat sink (IMCHS) using nanofluids as working fluids is analyzed numerically to increase the heat transfer rate. The rectangular IMCHS is designed with length and width of 10mm and 0.057mm respectively while optimum cut section number, n c=3. The three dimensional governing equations (continuity, momentum and energy) were solved using finite volume method (FVM). Parametric study of thermal performance between pure water-cooled and nanofluid-cooled IMCHS are evaluated for particle diameter in the range of, 30nm to 60nm, volume fraction in the range of, 1% to 4%,nanofluid type of Al 2O 3, CuO, and SiO 2 at Reynolds number range of 140 to 1034 are examined. The effects of the transport properties, nanofluid type, nanoparticle volume fraction and particle diameter are investigated on the IMCHS performance. It is inferred that the Nu number for IMCHS is higher than the conventional MCHS with a slight increase of the pressure drop. It is found that highest thermal augmentation is predicted for Al 2O 3, followed by CuO, and finally for SiO 2 in terms of Nu nf/Nu pw in the IMCHS. The Nu number increased with the increase of nanoparticle volume fraction and with the decrease of nanoparticle diameter. Elsevier 2012-12 Article PeerReviewed Mat Tokit, E. and Mohammed, Hussein A. and Yusoff, M. Z. (2012) Thermal performance of optimized interrupted microchannel heat sink (IMCHS) using nanofluids. International Communications in Heat and Mass Transfer, 39 (10). pp. 1595-1604. ISSN 0735-1933 http://dx.doi.org/10.1016/j.icheatmasstransfer.2012.10.013 DOI:10.1016/j.icheatmasstransfer.2012.10.013
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
Mat Tokit, E.
Mohammed, Hussein A.
Yusoff, M. Z.
Thermal performance of optimized interrupted microchannel heat sink (IMCHS) using nanofluids
description An interrupted microchannel heat sink (IMCHS) using nanofluids as working fluids is analyzed numerically to increase the heat transfer rate. The rectangular IMCHS is designed with length and width of 10mm and 0.057mm respectively while optimum cut section number, n c=3. The three dimensional governing equations (continuity, momentum and energy) were solved using finite volume method (FVM). Parametric study of thermal performance between pure water-cooled and nanofluid-cooled IMCHS are evaluated for particle diameter in the range of, 30nm to 60nm, volume fraction in the range of, 1% to 4%,nanofluid type of Al 2O 3, CuO, and SiO 2 at Reynolds number range of 140 to 1034 are examined. The effects of the transport properties, nanofluid type, nanoparticle volume fraction and particle diameter are investigated on the IMCHS performance. It is inferred that the Nu number for IMCHS is higher than the conventional MCHS with a slight increase of the pressure drop. It is found that highest thermal augmentation is predicted for Al 2O 3, followed by CuO, and finally for SiO 2 in terms of Nu nf/Nu pw in the IMCHS. The Nu number increased with the increase of nanoparticle volume fraction and with the decrease of nanoparticle diameter.
format Article
author Mat Tokit, E.
Mohammed, Hussein A.
Yusoff, M. Z.
author_facet Mat Tokit, E.
Mohammed, Hussein A.
Yusoff, M. Z.
author_sort Mat Tokit, E.
title Thermal performance of optimized interrupted microchannel heat sink (IMCHS) using nanofluids
title_short Thermal performance of optimized interrupted microchannel heat sink (IMCHS) using nanofluids
title_full Thermal performance of optimized interrupted microchannel heat sink (IMCHS) using nanofluids
title_fullStr Thermal performance of optimized interrupted microchannel heat sink (IMCHS) using nanofluids
title_full_unstemmed Thermal performance of optimized interrupted microchannel heat sink (IMCHS) using nanofluids
title_sort thermal performance of optimized interrupted microchannel heat sink (imchs) using nanofluids
publisher Elsevier
publishDate 2012
url http://eprints.utm.my/id/eprint/33905/
http://dx.doi.org/10.1016/j.icheatmasstransfer.2012.10.013
_version_ 1643649465386532864
score 13.211869

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