通过分析基于纳米颗粒小尺度效应的纳米流体热流传递的机理,建立纳米流体有效热导率的预测模型.将本模型与实验数据及经典模型对比,发现在常温下本模型和经典模型计算值均能较好地预测纳米流体的热导率,但在温度较高时本模型与实验值更接近,表明其更适用于计算不同温度下纳米流体的热导率.在此基础上,讨论了温度、纳米颗粒体积浓度和粒径对纳米流体热导率的影响,以及在不同温度下纳米颗粒及基液两者对增大纳米流体热导率的贡献.
参考文献
| [1] | Choi S U S.Enhancing thermal conductivity of fluids with nanoparticles[A].New York:ASME FED-231,1995:99-105. |
| [2] | S. Lee;S. U. -S. Choi;S. Li;J. A. Eastman .Measuring thermal conductivity of fluids containing oxide nanoparticles[J].Journal of heat transfer: Transactions of the ASME,1999(2):280-289. |
| [3] | S. M. S. Murshed;K. C. Leong;C. Yang .Enhanced thermal conductivity of TiO{sub}2-water based nanofluids[J].International Journal of Thermal Sciences,2005(4):367-373. |
| [4] | Xiang-Qi Wang;Arun S. Mujumdar .Heat transfer characteristics of nanofluids: a review[J].International Journal of Thermal Sciences,2007(1):1-19. |
| [5] | 李新芳,朱冬生,王先菊,汪南,李华,杨硕.Cu-水纳米流体的分散行为及导热性能研究[J].功能材料,2008(01):162-165,169. |
| [6] | Godson L;Raja B;Mohan Lal D et al.Enhancement of heat transfer using nanofluids—an overview[J].Renewable & Sustainable Energy Reviews,2010,14:629-641. |
| [7] | Maxwell-Garnett J C .Colors in metal glasses and in me tallic films[J].Philos Trans Roy Soc A,1904,203:385-420. |
| [8] | Bruggeman D A G .Berechnung verschiedener physikalischer konstanten con heterogenen substanzen (Ⅰ):Kielektrizitatskonstanten und leitfahigkeiten der mischkorper aus iostropen substanzen[J].Annlen der Physik Leipzig,1935,24:636-679. |
| [9] | Hamilton R L;Crosser O K .Thermal conductivity of heterogeneous two component systems[J].I & EC Fundamentals,1962,1:187-191. |
| [10] | Yu W;Choi S U S .The role of interfacial layers in the enhanced thermal of nanofluids:a renovated Maxwell model[J].Journal of Nanoparticle Research,2003,5(1-2):167-171. |
| [11] | Yu W;Choi SUS .The role of interfacial layers in the enhanced thermal conductivity of nanofluids: A renovated Hamilton-Crosser model[J].Journal of nanoparticle research: An interdisciplinary forum for nanoscale science and technology,2004(4):355-361. |
| [12] | Bu-Xuan Wang;Le-Ping Zhou;Xiao-Feng Peng .A fractal model for predicting the effective thermal conductivity of liquid with suspension of nanoparticles[J].International Journal of Heat and Mass Transfer,2003(14):2665-2672. |
| [13] | Huaqing Xie;Motoo Fujii;Xing Zhang .Effect of interfacial nanolayer on the effective thermal conductivity of nanoparticle-fluid mixture[J].International Journal of Heat and Mass Transfer,2005(14):2926-2932. |
| [14] | P. Keblinski;S. R. Phillpot;S. U. S. Choi;J. A. Eastman .Mechanisms of heat flow in suspensions of nano-sized particles (nanofluids)[J].International Journal of Heat and Mass Transfer,2002(4):855-863. |
| [15] | G. Chen .Nonlocal and nonequilibrium heat conduction in the vicinity of nanoparticles[J].Journal of heat transfer: Transactions of the ASME,1996(3):539-545. |
| [16] | Gupte S K;Advani S G;Huq P .Role of micro-convec tion due to non-affine motion of particles in a mono-disperse suspension[J].International Journal of Heat and Mass Transfer,1995,38:2945-2958. |
| [17] | Sarit Kumar Das;Nandy Putra;Peter Thiesen;Wilfried Roetzel .Temperature Dependence of Thermal Conductivity Enhancement for Nanofluids[J].Journal of heat transfer: Transactions of the ASME,2003(4):567-574. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%