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Fast transient solution of a two-layered counter-flow microchannel heat sink

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Main Authors: Beh, S. L., Tio, K. -K., Ghulam, Abdul Quadir, Seetharamu, K. N.
Format: Article
Language:English
Published: Emerald Group Publishing Limited. 2010
Subjects:
Cooling
Electronic equipment and components
Finite element analysis
Flow
Waveforms
Two-layered microchannel
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/8724
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spelling my.unimap-87242010-08-17T03:10:48Z Fast transient solution of a two-layered counter-flow microchannel heat sink Beh, S. L. Tio, K. -K. Ghulam, Abdul Quadir Seetharamu, K. N. Cooling Electronic equipment and components Finite element analysis Flow Waveforms Two-layered microchannel Link to publisher's homepage at http://www.emeraldinsight.com/ Purpose: The purpose of this paper is to apply asymptotic waveform evaluation (AWE) to the transient analysis of a two-layered counter-flow microchannel heat sink. Design/methodology/approach: A two-layered counter-flow microchannel heat sink in both steady state and transient conditions is analysed. Finite element analysis is used in the steady state analysis whereas AWE is used in the transient analysis. Findings: A two-layered microchannel produces different temperature distribution compared to that obtained for a single-layered microchannel. The maximum temperature occurs at the middle of the bottom wall whereas the maximum temperature of a single-layered microchannel is at the outlet of the bottom wall. The time taken to reach steady state is also investigated for different coolant flow rate and heat flux boundary conditions. It is observed that when fluid velocity increases, the time taken to reach steady state decreases, however, when the heat flux increases, the time taken to reach steady state does not change. Research limitations/implications: The fluid is incompressible and does not undergo phase change. The use of AWE provides an alternative method in solving heat transfer problem. Practical implications: New and additional data will be useful in the design of a microchannel heat sink for the purpose of cooling of electronic components. Originality/value: AWE is widely used in analyses of signal delays in electronic circuits, and rarely applied to mechanical systems. The present study applies AWE to heat transfer problems, and reveals that it reduces the computational time considerably. The results obtained are compared with conventional methods available in the literature, and they show good agreement. Hence the computational time is reduced, and the accuracy of results is verified. 2010-08-17T03:10:48Z 2010-08-17T03:10:48Z 2009 Article International Journal of Numerical Methods for Heat and Fluid Flow, vol.19(5), 2009, pages 595-616 0961-5539 http://www.emeraldinsight.com/journals.htm?articleid=1795727&show=abstract http://hdl.handle.net/123456789/8724 en Emerald Group Publishing Limited.
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Cooling
Electronic equipment and components
Finite element analysis
Flow
Waveforms
Two-layered microchannel
spellingShingle Cooling
Electronic equipment and components
Finite element analysis
Flow
Waveforms
Two-layered microchannel
Beh, S. L.
Tio, K. -K.
Ghulam, Abdul Quadir
Seetharamu, K. N.
Fast transient solution of a two-layered counter-flow microchannel heat sink
description Link to publisher's homepage at http://www.emeraldinsight.com/
format Article
author Beh, S. L.
Tio, K. -K.
Ghulam, Abdul Quadir
Seetharamu, K. N.
author_facet Beh, S. L.
Tio, K. -K.
Ghulam, Abdul Quadir
Seetharamu, K. N.
author_sort Beh, S. L.
title Fast transient solution of a two-layered counter-flow microchannel heat sink
title_short Fast transient solution of a two-layered counter-flow microchannel heat sink
title_full Fast transient solution of a two-layered counter-flow microchannel heat sink
title_fullStr Fast transient solution of a two-layered counter-flow microchannel heat sink
title_full_unstemmed Fast transient solution of a two-layered counter-flow microchannel heat sink
title_sort fast transient solution of a two-layered counter-flow microchannel heat sink
publisher Emerald Group Publishing Limited.
publishDate 2010
url http://dspace.unimap.edu.my/xmlui/handle/123456789/8724
_version_ 1643789251119153152
score 13.214268

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