摘要
风管系统是空调及通风工程中的一个重要组成部分,通常情况下风管截面主要有矩形和圆形。在国外目前圆形风管的使用率都变得越来越普及,而国内的使用比例只有20%左右。作者通过对矩形和圆形风管的阻力、漏风量、占用空间、初始投资、运行费用进行比较分析,对合理选择风管截面作了探讨,得出结论圆形风管不论在经济性还是技术性方面都优于矩形风管。
Duct system is an important part of air condition and ventilation engineering. Usually duct profile is rectangular or circular. Now the utilization of circular duct becomes more and more popular abroad, but in China the utilization rate of circular duct is only about 20%. Based on the resistance, air-leakage rate, occupies space, initial investment and operation cost of the rectangular and circular duct, the author discusses how to choose duct profile. As a result the circular duct is better than rectangular duct in technology and economy.
出处
《建筑热能通风空调》
2007年第3期77-78,82,共3页
Building Energy & Environment
关键词
圆形风管
矩形风管
经济技术分析
circular duct, rectangular duct, economic and technical analysis
