고층건축물의 피난경로 가압제연시스템 성능개선대책에 관한 연구

A Study on Performance Improvement Measures of Pressurized Smoke Control Systems for Exit Passageways of High-Rise Buildings

  • 손봉세 (강원대학교 소방방재공학과) ;
  • 김진수 ((주)벽산엔지니어링)
  • Son, Bong-Sae (Department of Fire & Disaster Protection Engineering, Kyungwon University) ;
  • Kim, Jin-Soo (Department of Fire Protection Engineering, Byucksan Engineering, Co., Ltd.)
  • 발행 : 2009.12.10

초록

One of the biggest problems in smoke control systems for high-rise buildings is stack effect, but there are no recognized methods or measures to solve the problem of stack effect as yet. The stack effect can be overcome by forming the uprising current inside the stair hall properly, but there is a limit to the height in supplying into the stair hall the smoke control air volume to be supplied to a floor in case of escape from fire. The limit to the height can be extended by over-coming the stack effect by pressurizing the stair hall and the ancillary room simultaneously. It can also be anticipated that the stack effect can be overcome by connecting the air supply shaft to the stair hall at the top. As a result of computer simulations using a network type of tool, it is found that adequate performance can be achieved by pressurizing the stair hall only for a building of 190m or less, and up to 360m when pressurizing the stair hall and the ancillary room simultaneously. In all those cases, however, an overpressure venting damper is required which operates within a suitable range for venting the overpressure outside.

키워드

참고문헌

  1. NFPA 92A, 2006, National Fire Protection Association, Quincy, MA
  2. BS EN 12101-6, 2005, British Standard
  3. NFSC 501A, 2008, Korea National Emergency Management Agency
  4. AS/NZS1668.1, 1998, Australian/New Zealand Standard
  5. Achakji, G. Y. and Tamura, G. T., 1988, Pressure drop characteristics of typical stairshafts in high-rise building, ASHRAE Transaction, Vol. 94, Pt 1, pp. 1223-1237