Numerical investigation of flow boiling in double-layer microchannel heat sink

Ahmed, Shugata and Seder, Islam M.F. and Ab. Manaf, Hazli and Ahmed, Mirghani Ishak and Hawlader, Mohammad Nurul Alam (2014) Numerical investigation of flow boiling in double-layer microchannel heat sink. In: International conference on Materials,Mechatronics, Manufacturing & Mechanical Engineering 2014, 24th-25th September 2014, Kuching , Sarawak, Malaysia . (Unpublished)

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Abstract

Double-layer microchannel heat sinks (DL-MCHS) are considered as an effective solution of temperature non-uniformity on the surface of microelectronic devices. However, only single-phase flow is analyzed so far in DL-MCHS. In this paper, numerical investigation has been carried out to observe the flow boiling phenomena in DL-MCHS. FLUENT ver. 14.5 has been used to simulate the multiphase flow in this particular heat sink. A mathematical model of the system has been provided. From the results, it is observed that two-phase heat transfer coefficient increases with increasing heat flux and decreases after achieving critical heat flux (CHF). For the considered channel, CHF is found to be550×〖10〗^4 Wm^(-2).Highest heat transfer rate during boiling is 6.4 W.

Item Type:	Conference or Workshop Item (Slide Presentation)
Additional Information:	2426/40008
Uncontrolled Keywords:	flow boil, heat sink
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ163.26 Energy conservation
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	professor mirghani ishag ahmed
Date Deposited:	29 Dec 2014 09:48
Last Modified:	07 Feb 2017 15:33
URI:	http://irep.iium.edu.my/id/eprint/40008

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