| NUCLEAR AND NEW ENERGY TECHNOLOGY |
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Numerical investigation of boiling model parameters for nanofluids |
| YUAN Yang1,2, LI Xiangdong2, TU Jiyuan1,2 |
1. Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China;
2. School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Victoria 3083, Australia |
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Abstract The lack of accurate boiling heat transfer models for nanofluids limits their applications in industrial systems. This study describes the mechanisms for nucleate pool boiling of nanofluids based on experimental results in the literature. New closure correlations are given for the nucleate boiling parameters to improve the classical heat flux partitioning model. The numerical results agree well with available experimental data. The most important task when modeling nucleate boiling of nanofluids is to accurately predict the effects of the surface wettability and surface morphology caused by the nano-coating on the bubble nucleation, growth and departure from the heater surface.
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| Keywords
heat transfer
nanofluids
nucleate boiling
heat flux partitioning model
parameter
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Issue Date: 15 July 2015
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2015,
Vol. 55
