摘要
对环形翅片管的自然对流换热过程进行了数值计算,主要关注翅片间距对翅片管自然对流换热过程的影响,结果表明:在给定结构尺寸下,翅片间距达到10mm以上时,翅片间散热不会相互影响;翅片间距在10mm以内时,随着翅片间距减小,翅片的表面换热系数逐渐降低。
Numerical analysis is performed on the natural convection of the finned tube. The influence of the fin spacing to the heat transfer performance of the finned tube is mostly concerned. The result shows that, under the given structure, the heat transfer of the fins will not affect each other when the fin spacing exceeds 10 millimeters, otherwise, the heat transfer performance will be reduced with the decrease of the fin spacing.
出处
《机电设备》
2015年第1期65-69,共5页
Mechanical and Electrical Equipment
关键词
翅片管
表面换热系数
翅片间距
自然对流
finned tube
heat transfer coefficient
fin spacing
natural convection