欢迎登录材料期刊网

材料期刊网

高级检索

含油纳米制冷剂沸腾中碳纳米管相间迁移机制,是评估纳米制冷剂沸腾传热效果和制冷系统中碳纳米管循环能力的基础.本文基于颗粒捕集理论和气浮理论,提出了各因素对碳纳米管相间迁移的影响机制;即碳纳米管迁移率随其长度或直径的增大而增大,制冷剂动力学黏度越小、密度越大,其完全蒸发时碳纳米管迁移率越大,碳纳米管迁移率随润滑油浓度的增大而减小、随热流密度的增大而减小、随初始液位高度的增加而增大.同时通过实验验证了理论分析结果的准确性.

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] 丁国良,姜未汀,彭浩,胡海涛.一种纳米流体热导率通用模型[J].工程热物理学报,2010(08):1281-1284.
[3] Hao Peng;Guoliang Ding;Haitao Hu;Weiting Jiang;Dawei Zhuang;Kaijian Wang .Nucleate pool boiling heat transfer characteristics of refrigerant/oil mixture with diamond nanoparticles[J].International Journal of Refrigeration,2010(2):347-358.
[4] Kristen Henderson;Young-Gil Park;Liping Liu;Anthony M. Jacobi .Flow-boiling heat transfer of R-134a-based nanofluids in a horizontal tube[J].International Journal of Heat and Mass Transfer,2010(5/6):944-951.
[5] Guoliang Ding;Hao Peng;Weiting Jiang;Yifeng Gao .The migration characteristics of nanoparticles in the pool boiling process of nanorefrigerant and nanorefrigerant-oil mixture[J].International Journal of Refrigeration,2009(1):114-123.
[6] 丁国良,彭浩,胡海涛.含油纳米制冷剂沸腾中纳米颗粒相间迁移特性预测模型[J].工程热物理学报,2011(04):561-564.
[7] Ravi Prasher;Prajesh Bhattacharya;Patrick E. Phelan .Brownian-Motion-Based Convective-Conductive Model for the Effective Thermal Conductivity of Nanofluids[J].Journal of heat transfer: Transactions of the ASME,2006(6):588-595.
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:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%