A fractal study for nucleate pool boiling heat transfer of nanofluids

作     者：XIAO BoQi 1 , JIANG GuoPing 2 & CHEN LingXia 1 1 Department of Physics and Electromechanical Engineering, Sanming University, Sanming 365004, China 2 Earthquake Engineering Research Test Center, Guangzhou University, Guangzhou 510405, China 

作者机构：Department of Physics and Electromechanical Engineering Sanming University Sanming China Earthquake Engineering Research Test Center Guangzhou University Guangzhou China 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2010年第53卷第1期

页      面：30-37页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Supported by the Scientific Research Special Foundation of Provincial University of Education Department of Fujian Province, China (Grant No.JK2009039) Sanming University (Grant No. HX200804) 

主　　题：nanofluid nucleate pool boiling fractal heat transfer 

摘      要：In this paper, a fractal model for nucleate pool boiling heat transfer of nanofluids is developed based on the fractal distribution of nanoparticles and nucleation sites on boiling surfaces. The model shows the dependences of the heat flux on nanoparticle size and the nanoparticle volume fraction of the suspension, the fractal dimension of the nanoparticle and nucleation site, temperature of nanofluids and properties of fluids. The fractal model predictions show that the natural convection stage continues relatively longer in the case of nanofluids. The addition of nanoparticles causes a decrease of the pool nucleate boiling heat transfer. The nucleate pool boiling heat transfer coefficient is decreased by increasing particle concentration. An excellent agreement between the proposed model predictions and experimental data is found. The validity of the fractal model for nucleate pool boiling heat transfer is thus verified.