Numerical investigation of flow boiling in double-layer microchannel heat sink
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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
INSI Publications
2014
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/39310/ http://irep.iium.edu.my/39310/ http://irep.iium.edu.my/39310/1/Numerical_Investigation_of_Flow_Boiling_paper.pdf |
| Summary: | 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. |
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