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Journal of Korean Institute of Fire Science and Engineering 2008;22(5):83-89.
Published online December 31, 2008.
고팽창포소화약제 발포특성에 영향을 미치는 요인 연구
오규형, 이성은, 인세진, 이만수
1호서대학교 소방방재학과2호서대학교 산업안전기술연구센터3우송대학교 소방방재학과4호서대학교 안전보건학과
A Study on the Effect Factor to the Foam Generating Characteristics of High Expansion Foam
Oh Kyu-Hyung, Lee Sung-Eun, In Se-Jin, Lee Man-Su
요약
ISO 7203-2의 고팽창포 표준 발포기를 이용하여 포수용액을 5기압에서 6리터로 방사하면서 풍량, 스크린 매쉬, 포수용액의 농도 및 소금물의 농도 등 외적 요인에 의한 발포 특성을 살펴보았다. 연구결과 풍량이 증가할수록 발포배율이 증가하는 경향을 보였으며 표준발포용 스크린이 평직 철망에 비해 발포배율이 높았다. 포수용액의 농도 증가에 따라 발포 배율과 환원시간이 긴 안정성이 좋은 포를 발생하였으며 소금물의 농도가 증가하는 경우는 발포 배율과 환원시간 모두 감소하는 경향을 나타내었다.
Abstract
Using the high expansion foam generator of ISO 7203-2 which spray 6 liter at 5 bar, foam generation characteristics was studied. Wind flow rate, foam screen, concentration of foam agent solution and concentration of salt of water were varied to find the effect of the parameters on foam generation. Research result showed that expansion ratio of foam was increased with wind flow rate. The expansion ratio of foam in the perforated type standard screen was higher than the wire mesh screen. Expansion ratio and drainage time were increased with increase of foam solution concentration. But a increase of salt concentration in solution showed the decrease of expansion ratio and drainage time.
Key Words: High expansion foam, Foam, Drainage time, Expansion ratio


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