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http://dx.doi.org/10.7731/KIFSE.2015.29.3.048

[Retracted]Improving Performance of Foam Proportioner Utilizing Metering Venturi Type  

Joo, Seung-Ho (Yoon Young Fire Protection Eng. Co., Ltd.)
Kong, Ha-Sung (Dept. of Fire Safety, Kyungil Univ.)
Gong, Ye-Som (Logos International School)
Publication Information
Fire Science and Engineering / v.29, no.3, 2015 , pp. 48-52 More about this Journal
Abstract
In this study, we have evaluated whether the mixing ratio is proper by creating a mixing device for foam proportioner that mainly is employed in practice utilizing a metering venturi type. In case of the mixing ratio for 3%, water under pressure of 76 mm in diameter and the original liquid of a foam fire extinguishing agent of 31.75 mm in diameter have showed up the fluctuation rate just as much as 3.1~3.5% of the mixing ratio. Because water under pressure of 101.6 mm in diameter and the original liquid of a foam fire extinguishing agent of 38.1 mm in diameter have showed up 3.3~3.7% of the fluctuation rate, water under pressure of 101.6 mm in diameter and the original liquid of a foam fire extinguishing agent of 38.1 mm in diameter have satisfied 3.0~3.9% of performance criterion. And also, in case of the 6% of mixture rate, water under pressure of 76.2 mm in diameter and the original liquid of a foam fire extinguishing agent of 31.75 mm in diameter have showed up the fluctuation rate just as much as 6.4~6.8% of the mixing ratio. Because water under pressure of 101.6 mm in diameter and the original liquid of a foam fire extinguishing agent of 38.1 mm in diameter have showed up 6.0~6.8% of the fluctuation rate, water under pressure of 101.6 mm in diameter and the original liquid of a foam fire extinguishing agent of 38.1 mm in diameter have satisfied 6.0~7.0% of performance criterion.
Keywords
Metering venturi type; Foam proportioner; Mixing ratio; Flowmeter; Pressure gauge;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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