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An Experimental Study on the Ventilation Performance to Enhance Removal Efficiency of Indoor Hamful Gases  

Ku, Jae-Hyun (한국소방산업기술원 소방산업기술연구소)
Publication Information
Fire Science and Engineering / v.23, no.5, 2009 , pp. 117-124 More about this Journal
Abstract
The objective of this research is to analyze the ventilation performance of mechanical ventilation systems to enhance removal efficiency of indoor hamful gases. The ventilation performance is evaluated using a step-down method based on ASTM Standard E741-83. The ventilation performance is evaluated as a function of the ventilation rate and supply/extract locations using a tracer gas ($CO_2$) technique. As a result, the $CO_2$ concentration as a function of time is decayed exponentially and the ventilation performance is found to increase with increased the ventilation rate. The ventilation performance of the second type ventilation system is better than that of the first type or the third type. The ventilation performance without human occupancy increases up to 55% and the ventilation performance with one person increases up to 25% at the supply air of 570Lpm comparing with a natural reduction after one hour in the test chamber. The ventilation performance is better than 15% comparing with natural decay at the supply of 570Lpm in an office room.
Keywords
Hamful gases; Removal efficiency; Ventilation performance; Tracer gas;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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