Experimental Study of Effect of Air Duct Structures on Heat Dissipation of Heating-Only Fan Coil

作     者：WU Xiao-zhou,ZHAO Jia-ning(School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin,Heilongjiang 150090,China) 

作者机构：School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 China 

出 版 物：《湖南大学学报（自然科学版）》 (Journal of Hunan University:Natural Sciences)

年 卷 期：2009年第36卷第S1期

页      面：102-105页

核心收录：

学科分类：080702[工学-热能工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：Supported by National11th Five-Year Plan Major Scientific and Technological Issues of China(2006BAJ01A04) 

主　　题：heating-only fan coil heat dissipation performance air duct structure natural convection forced convection 

摘      要：Heating-only fan coil(HFC)is one of the suited end users,which is not only compact but also highly *** the major factors affecting the heat dissipation performance of HFC include leakage through coil bypass,distance between fan and coil,fan structure and air inlet *** natural air convection or forced,experimental studies were made on the effects of these factors upon the heat dissipation performance of *** results show that:1)After reducing the leakage through coil bypass,the heat dissipation of HFC increases 16.9% under natural convection,and increases 8.3% under forced convection.2)After the distance between fan and coil be raised from 23.2cm to 41.7cm,the heat dissipation of HFC decreases 21.3% under natural convection,but increases12.8% under forced convection.3)After changing the fan structure,the heat dissipation of HFC increases 41.8% under natural convection,and the heat dissipation per motor power increases 96.1% under forced convection.4)The heat dissipations of HFC with round pass,slit and strip type of air inlet are different,whose proportion is about 100%,110%,136% under natural convection,and 100%,105%,116% under forced convection.