| Title |
A Pressure Loss Experiment and Examination of T-Method's Application Propriety for Duct Design of Housing Ventilation System |
| Authors |
Choi Seok-Yong ; Yee Jurng-Jae |
| Keywords |
Duct Design ; Pressure Loss ; T-Method ; Housing Ventilation System |
| Abstract |
The accurate distribution of flow rate has been a very important part to control the air change rate since introduction of housing ventilation system. An inappropriate selection of fan due to incorrect prediction of pressure loss in duct brings energy loss. This study is to measure a pressure loss of general spiral duct and to construct database for finding correct loss factors in fitting upper stream. And this study is to evaluate applicability of T-Method at housing ventilation system by comparing experiment with T-Method. The results of this study are as following. It is demanded to decide accurate size under duct design for housing ventilation system. Because the small amount of flow rate was considered at that time. The duct design under Equal Friction Loss Method was useful to decide on duct size but it has large error range. Flow rate predicted was 256CMH, and it is almost equal to the result of the experiment. Error range was 2.8%. |