摘要
本文对水和空气流过紫铜微细板翅结构构中的对流换热进行行实验研究,并与相近孔隙率的烧结多孔介质中的对流换热进行比较。结果表明:在本文实验参数范周内,与空槽道相比,该微细板翅结构使水的对流换热增强9倍以上,使空气的对流换热增强了15-30倍;与相近孔隙率的锡青铜烧结多孔结构相比,该微细板翅结构中的流动阻力大大减小,而对流换热能力却增强。
Forced convection heat transfer of air and water in a pure copper mini-fin structure was investigated experimentally. The results show that the convection heat transfer coefficient can be increased more than 9 times for water and 15-30 times for air in the mini-fin structure compared with the bare plate channel for the conditions in the present research. The flow resistance for water and air flowing through the mini-fin structure was less, while heat transfer coefficient was higher than in the sintered bronze porous structure.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2003年第3期484-486,共3页
Journal of Engineering Thermophysics
基金
国家杰出青年科学基金资助项目(No.50025617)
国家重点基础研究发展计划资助项目(No.G1999033106)
关键词
微细板翅
实验研究
对流换热
rnini-fin structure
experimental research
convection heat transfer
