化工学报 ›› 2007, Vol. 58 ›› Issue (9): 2200-2204.

• 传递现象 • 上一篇    下一篇

振荡热管内不同形态纳米颗粒流动及传热特性

商福民,刘登瀛,冼海珍,杨勇平,杜小泽   

  1. 华北电力大学教育部电站设备状态监测与控制重点实验室;中国科学院工程热物理研究所
  • 出版日期:2007-09-05 发布日期:2007-09-05

Flow and heat transfer characteristics of different forms of nanometer particles in oscillating heat pipe

SHANG Fumin,LIU Dengying,XIAN Haizhen,YANG Yongping,DU Xiaoze   

  • Online:2007-09-05 Published:2007-09-05

摘要:

主要针对不同形态的纳米颗粒在振荡热管内的流动及热传输特性进行了实验研究。在相同的压力、相同的热管倾角、不同的充液率条件下,对振荡热管内工质分别为Cu-水纳米流体以及Cu-水纳米流体中Cu纳米颗粒沉积后溶液的流动以及热传输特性进行了实验研究,并与工质为蒸馏水时进行了对比实验分析,以此来研究振荡热管内气、液以及纳米颗粒多相流动存在时,对热管传输特性的影响。实验表明:当振荡热管内存在气、液以及不同形态的纳米颗粒多相流动时,对其传热特性会产生很大的影响,在一定条件下会起到强化传热的作用。

关键词:

振荡热管, 纳米颗粒, 不同形态, 流动, 传热

Abstract:

The experiment aimed at the flow and heat transfer characteristics of different forms of nanometer particles in the oscillating heat pipe(OHP).At the same pressure,the same inclination of heat pipe and different liquid filling rates,the flow and heat transfer characteristics of Cu-H2O nanofluids were investigated and compared with distilled water to study the effect of multiphase flow of steam,fluid and different forms of nanometer particles on heat transfer in heat pipe.The experiment indicated that multiphase flow of steam,fluid and different forms of nanometer particles in the OHP strongly affected heat transfer,and under specfic condition,heat transfer could be enhanced.

Key words:

振荡热管, 纳米颗粒, 不同形态, 流动, 传热