Earticle

초록

영어

This study aims to measure sedimentation status change with the changes in internal pressure for dry chemical extinguishers of various use periods and analyze the suitability of the fire extinguishers' performance criteria. When the internal pressure of the fire extinguisher is 0%, 2 out of 10 new dry chemical powders for the 5 elapsed years were noted to be suitable, including 3 recycled dry chemical powders with 5 elapsed years that were found eligible. One out of 10 new dry chemical powders for 10 elapsed years was shown as suitable. Also, one new dry chemical powder for 13 elapsed years was suitable. When the internal pressure of the fire extinguisher was 50%, all 10 out of 10 new dry chemical powders for 5 years, recycled one with 5 elapsed years, and a new one with 10 elapsed years were found to be suitable, while 9 new dry chemical powders for 13 years were shown as suitable. When the internal pressure of the fire extinguisher was normal, new ones with 5 elapsed years, recycled ones with 5 elapsed years, new ones with 10 elapsed years, and new ones with 13 elapsed years were all 10 out of 10 samples noted as suitable. In summarizing the experiment results, it was found that the sedimentation status, one of the fire extinguisher's physical properties experiments, affects the fire extinguisher's performance criteria rather than the change with use periods.

목차

Abstract
1. 서론
2. 본문
2.1 실험모델
2.2 실험구성
2.3 실험방법
3. 실험 결과
3.1 내부압력이 0%일 때 침강도 변화량
3.2 내부압력이 50%일 때 침강도 변화량
3.3 내부압력이 정상일 때 침강도 변화량
4. 결론
5. References

키워드

저자

• 손주달 [ Ju-Dal Son | (사)한국위험물안전협회장 ]
• 김서영 [ Seo-Young Kim | 우석대학교 소방·안전공학과 박사과정 ]
• 공하성 [ Ha-Sung Kong | 우석대학교 소방방재학과 교수 ] Corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한안전경영과학회지 [Journal of Korea Safety Management & Science]

• 간기

  계간

• pISSN

  1229-6783

• eISSN

  2288-1484

• 수록기간

  1999~2025

• 십진분류

  KDC 530 DDC 620