化工进展2016,Vol.35Issue(8):2334-2341,8.DOI:10.16085/j.issn.1000-6613.2016.08.05
纳米流体冲击射流换热特性实验
Experimental study on heat transfer characteristics of nanofluids impacted jet
摘要
Abstract
In this paper,comprehensive performance of impinging jet cooling system heat exchanger was experimentally studied using nanofluids. The heat transfer efficiencies were compared for nanofluids of different flow rates,jet height and types . The results revealed that heat transfer efficiency significantly increased with the introduction of nanofluids in jet,but,when the mass percentage of nanofluids exceeded of 0.5%,the heat transfer coefficient did not change significantly. For different types of nanofluids:Cu- water,Al2O3-water,Al-water nanofluids,the highest heat transfer efficiency was observed for Cu- water. In addition,there was a particular jet height,where the maximum heat transfer coefficient could be reached. The results would be practically valuable in designing and manufacturing light and efficient heat exchanger.关键词
纳米粒子/多相流/传热/冲击射流Key words
nanoparticles/multiphase flow/heat transfer/impinging jet分类
能源科技引用本文复制引用
孙斌,曲艺,杨迪..纳米流体冲击射流换热特性实验[J].化工进展,2016,35(8):2334-2341,8.基金项目
教育部新世纪优秀人才支持计划项目(NCET-12-0727)。 ()