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http://dx.doi.org/10.6110/KJACR.2012.24.2.136

Study on the Performance Improvement of Roof Fan Used for Local Exhaust System Installed in Apartment  

Kwon, Yong-Il (Department of Building Mechanical Engineering, Shinheung College)
Jeong, Yeol-Wha (Korea polytechnics VII college ulsan campus)
Ahn, Jung-Hun (Sewon system vent)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.24, no.2, 2012 , pp. 136-141 More about this Journal
Abstract
Performance improvement of local exhaust system used in toilet and cooking place are main concern in a field of ventilation. In Korea, There are many high riser residential apartments in recent years. These buildings were not viewed as being major contributors to exhaust pollutants producted in indoor. It was because many engineers thought that exhaust in high riser building depends on stack effect. This study investigates on the performance improvement of terminal device, roof fan, of vertical spiral duct used in high riser residential apartments. This paper focuses mainly on the effect of accessories, number or shape of blades, composed of roof fan with function of exhaust air volume of toilet and cooking place. Roof fan with 10 blades is observed at optimum exhaust performance in this study.
Keywords
Exhaust performance; Roof fan; Stack effect; Vertical spiral duct;
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