摘要
本文对常用的四种翅片管束进行了试验研究。研究表明:对平直大套片和椭园翅片管束,管排数的影响取决于 Re 数的大小;对一定几何参数的管束,存在一临界雷诺数 Recr.文中给出了临界雷诺数的关联式。对于园翅片管束,未发现临界雷诺数问题。
The heat transfer row corrections are investigeted for four different staggered fined tube banks.For plate fins and elliptic fins the row number effect is Reynolds number dependent.A critical Reynolds number Recr is found when the geometry of tube banks is given.A correlation for Recr is presented.For circular fins,the heat transfer coefficient decreases as the row number increases,the critical Reynolds number is not found.
出处
《制冷学报》
CAS
CSCD
1990年第2期35-41,共7页
Journal of Refrigeration
