Fire Science and Engineering (한국화재소방학회논문지)

Korean Institute of Fire Science and Engineering (한국화재소방학회)
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An Analysis on the Major Parameter and the Relations of Pressure Difference Effect of Leakage Area in the Smoke-Control Zone

제연구역의 주요 매개 변수 및 누설 면적 변화를 고려한 차압 형성 관계 분석

  • You, Woo Jun (Dept. of Mechanical Engineering, Chung-Ang University) ;
  • Ko, Gwon Hyun (Dept. of Architecture & Fire Administration, Dongyang University) ;
  • SaKong, Seong Ho (Korea Fire Institute of Industrial & Technology) ;
  • Nam, Jun-Seok (Korea Fire Institute of Industrial & Technology) ;
  • Ryou, Hong-Sun (Dept. of Mechanical Engineering, Chung-Ang University)
  • Received : 2012.11.27
  • Accepted : 2013.02.01
  • Published : 2013.02.28
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Abstract

This study is experimentally analyzed to extract the major parameters affecting the performance of the smoke-control system and the relations of pressure difference between vestibule and supply air pressure zone effect of supply mass flow rate and leakage area in the smoke-control zone. To obtain this, the mock-up building of three-story scale with a total of 10 compartments was constructed, and several apparatus were also installed for in-situ measurement of the ventilation flow rate, pressure difference between compartments, smoke defensive air velocity, the opening-closing force of door, etc. This article show that pressure difference in the smoke-control zone is significantly related with leakage area of vestibule in low pressure region, leakage area of supply air pressure in over pressure region and both of them in pressure control region when the pressure control range of damper is 45 Pa~55 Pa.

본 연구에서 부속실 단독 가압 구조인 급기가압 제연설비의 성능 확보에 영향을 주는 주요 매개 변수를 분석하고 공급유량과 누설면적 변화에 따라서 풍도와 부속실 차압 형성 관계를 실험적으로 분석하였다. 이를 위해서 3층 규모의 총 10개의 구획공간으로 구성된 모형 구조물과 방화문의 개폐력 측정장치를 제작하였으며, 각 구획공간과 외기의 차압, 방연풍속을 측정하기 위한 제어 계측 장비를 구성하였다. 그 결과 댐퍼의 차압조절 범위가 45 Pa~55 Pa인 경우 공급유량과 부속실 차압 크기에 따라서 45 Pa 이하인 저압 영역, 45 Pa~55 Pa 구간인 차압조절 영역 그리고 55 Pa 이상인 과압 영역을 구분하였으며, 저압 영역에서는 부속실, 차압조절 영역에서는 부속실과 댐퍼 그리고 과압 영역 에서는 댐퍼의 누설면적이 차압 형성에 중요한 관계를 갖고 있는 것을 확인하였다.

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References

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