本文提出预测纳米流体热导率的通用模型,该模型可以预测含球形纳米颗粒的纳米流体或含纳米管的纳米流体的热导率.模型首先计算纳米粉体团聚体的热导率与团聚体在流体中的体积分数,进而计算得到纳米流体的热导率.将通用模型的预测结果、已有纳米流体热导率模型的预测结果与实验数据进行比较,结果表明97%的通用模型预测结果与实验数据的误差在10%以内,平均误差为2.8%.通用模型的精度超过已有的纳米流体热导率模型,且具有很好的通用性.
参考文献
| [1] | S. U. S. Choi;Z. G. Zhang;W. Yu;F. E. Lockwood;E. A. Grulke .Anomalous thermal conductivity enhancement in nanotube suspensions[J].Applied physics letters,2001(14):2252-2254. |
| [2] | 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. |
| [3] | Sheng-shan Bi;Lin Shi;Li-li Zhang .Application of nanoparticles in domestic refrigerators[J].Applied thermal engineering: Design, processes, equipment, economics,2008(14/15):1834-1843. |
| [4] | Prasher R;Bhattacharya P;Phelan PE .Thermal conductivity of nanoscale colloidal solutions (nanofluids)[J].Physical review letters,2005(2):5901-1-5901-4-0. |
| [5] | Xuan YM.;Li Q.;Hu WF. .Aggregation structure and thermal conductivity of nanofluids[J].AIChE Journal,2003(4):1038-1043. |
| [6] | 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. |
| [7] | Weiting Jiang;Guoliang Ding;Hao Peng;Yifeng Gao;Kaijian Wang .Experimental and Model Research on Nanorefrigerant Thermal Conductivity[J].HVAC&R Research,2009(3):651-669. |
| [8] | Weiting Jiang;Guoliang Ding;Hao Peng .Measurement and model on thermal conductivities of carbon nanotube nanorefrigerants[J].International Journal of Thermal Sciences,2009(6):1108-1115. |
| [9] | 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. |
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%