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
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.
袁杨, 李祥东, 屠基元. 纳米流体沸腾模型中某些物理参数的理论探讨[J]. 清华大学学报（自然科学版）, 2015, 55(7): 815-820.
YUAN Yang, LI Xiangdong, TU Jiyuan. Numerical investigation of boiling model parameters for nanofluids. Journal of Tsinghua University(Science and Technology), 2015, 55(7): 815-820.
 李祥东, 屠基元. 纳米流体核态沸腾的机理探讨及数值模拟 [J]. 工程热物理学报, 2013, 34(6): 1096-1100.LI Xiangdong, TU Jiyuan. Mechanistic modelling of nucleate boiling of nanofluids [J]. Journal of Engineering Thermophysics, 2013, 34(6): 1096-1100. (in Chinese)
 Yeoh G, Tu J. Modelling Subcooled Boiling Flows [M]. New York: Nova Science Publishers, 2009: 5-36.
 Gerardi C, Buongiorno J, Hu L, et al. Infrared thermometry study of nanofluid pool boiling phenomena [J]. Nanoscale Research Letters, 2011, 6(1): 1-17.
 Phan H, Caney N, Marty P, et al. Surface wettability control by nanocoating: The effects on pool boiling heat transfer and nucleation mechanism [J]. International Journal of Heat and Mass Transfer, 2009, 52(23): 5459-5471.
 Kim S, Bang I, Buongiorno J, et al. Surface wettability change during pool boiling of nanofluids and its effect on critical heat flux [J]. International Journal of Heat and Mass Transfer, 2007, 50(19/20): 4105-4116.
 Ganapathy H, Sajith V. Semi-analytical model for pool boiling of nanofluids [J]. International Journal of Heat and Mass Transfer, 2013, 57(1): 32-47.
 Benjamin R, Balakrishnan A. Nucleation site density in pool boiling of saturated pure liquids: Effect of surface microroughness and surface and liquid physical properties [J]. Experimental Thermal and Fluid Science, 1997, 15(1): 32-42.
 Wang C, Dhir V. Effect of surface wettability on active nucleation site density during pool boiling of water on a vertical surface [J]. Journal of Heat Transfer, 1993, 115(3): 659-669.
 Li X, Li K, Tu J, et al. On two-fluid modeling of nucleate boiling of dilute nanofluids [J]. International Journal of Heat and Mass Transfer, 2014, 69: 443-450.
 Wu J, Zhao J. A review of nanofluid heat transfer and critical heat flux enhancement: Research gap to engineering application [J]. Progress in Nuclear Energy, 2013, 66: 13-24.
 Das S, Narayan G, Baby A. Survey on nucleate pool boiling of nanofluids: The effect of particle size relative to roughness [J]. Journal of Nanoparticle Research, 2008, 10(7): 1099-1108.
 Narayan G, Baby A, Das S. Mechanism of enhancement/deterioration of boiling heat transfer using stable nanoparticle suspensions over vertical tubes [J]. Journal of Applied Physics, 2007, 102(7): 074317-1-074317-7.
 Wen D, Ding Y. Experimental investigation into the pool boiling heat transfer of aqueous based alumina nanofluids [J]. Journal of Nanoparticle Research, 2005, 7(2/3): 265-274.
 Das S, Putra N, Roetzel W. Pool boiling nano-fluids on horizontal narrow tubes [J]. International Journal of Multiphase Flow, 2003, 29: 1237-1247.
 Bang I, Chang S. Boiling heat transfer performance and phenomena of Al2O3-water nano-fluids from a plain surface in a pool [J]. International Journal of Heat and Mass Transfer, 2005, 48: 2407-2419.