工程计算中关于翅片效率的一个问题  

A problem of fin efficiency in engineering calculation

作　　者：刘训海[1] 张华[1] 

机构地区：[1]上海理工大学

出　　处：《制冷与空调》2008年第2期25-28,24,共5页Refrigeration and Air-Conditioning

基　　金：上海市重点学科建设项目资助(TD503)

摘　　要：形成扩展表面的翅片管是强化换热中普遍采用的重要方法。但工程上关于翅片效率的计算却出现了混乱,特别是在现行的教科书和工程设计手册中。本文对此情况进行分析,指出正确的工程计算式,以免这一混乱现象继续存在。It is an important way to extend the surface of tubes with fins to strengthen heat exchange, and this way is used universally. However, in engineering, there＇s confusion about how to calculate fin efficiency as there are several different formulas in the textbooks and engineering design manuals used today. In this paper, a calculation formula of fin efficiency, which can be used in engineering, is deduced with comparison of these formulas in different conditions.

关 键 词：翅片管 翅片效率 计算公式 

分 类 号：TB21[一般工业技术—工程设计测绘]