Flow Boiling Dynamics of Water and Nanofluids in a Single Microchannel at Different Heat Fluxes

被引：13
|
作者：
Edel, Zachary [1 ]
Mukherjee, Abhijit [2 ]
机构：
[1] Michigan Technol Univ, Dept Mech Engn Engn Mech, Houghton, MI 49931 USA
[2] Calif State Univ Northridge, Northridge, CA 91330 USA
来源：
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 2015年 / 137卷 / 01期
关键词：
nanofluids; flow boiling; microchannel; ONB; OBE; NUCLEATION; BUBBLE;
D O I：
10.1115/1.4028763
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The preferable cooling solution for micro-electronic systems could be forced flow boiling in micro heat exchangers. Nanoparticle deposition affects nucleate boiling via alteration of surface roughness, capillary wicking, wettability, and nucleation site density. In this study, flow boiling was investigated using water and nanofluids in a single rectangular microchannel at different heat fluxes. The observed change in flow regime transition revealed the effect of nanoparticles on the onset of nucleate boiling (ONB) and the onset of bubble elongation (OBE). The addition of nanoparticles was found to stabilize bubble nucleation and growth and increase heat transfer in the thin film regions.
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页数：8
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