한국화재소방학회논문지 (Fire Science and Engineering)

  • 제27권4호
  • /
  • Pages.1-6
  • /
  • 2013
  • /
  • 2765-060X(pISSN)
  • /
  • 2765-088X(eISSN)
한국화재소방학회 (Korean Institute of Fire Science and Engineering)
권호 표지
DOI QR코드

DOI QR Code

연돌효과를 고려한 급기가압 제연시스템의 수치해석 연구

Numerical Analysis on Pressurization System of Smoke Control in Consideration of Stack Effect

  • 김정엽 (한국건설기술연구원 화재안전연구센터)
  • Kim, Jung-Yup (Fire Research Center, Korea Institute of Construction Technology)
  • 투고 : 2013.05.10
  • 심사 : 2013.08.09
  • 발행 : 2013.08.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

압력차를 이용해서 연기를 제어하는 급기가압 제연시스템의 경우에는 건축물 내의 압력 형성에 영향을 미치는 인자들을 설계에 반영해야 하며, 연돌효과가 중요한 인자 중 하나이다. 본 연구에서는 네트워크 모델 기반의 수치해석적 방법을 이용해서 20층 규모의 건축물 피난계단을 대상으로 연돌효과가 포함된 급기가압 제연시스템의 운전 특성을 분석하였다. 연돌효과만 작용하는 경우와 급기가압 제연시스템만 작용하는 경우 및 연돌효과와 급기가압 제연시스템이 동시에 작용하는 경우의 3가지 조건에 대해서 해석을 수행하였다. 층별로 구획실의 압력과 공기 유량에 대한 상세한 해석결과를 제시하였으며, 연돌효과의 영향을 가시적으로 표현하였다. 한편 연돌효과와 급기가압 효과가 합해진 만큼 계단실의 압력이 상승하는 해석결과와 이에 따른 문제점을 제기하였다.

When the pressurization system that uses difference of pressure for smoke control is designed, the factors influencing on the pressure field in building should be applied to design process and the stack effect is one of the main factors. Numerical analysis based on network model in 20-story building is carried out to analyze the pressurization system of smoke control in consideration of stack effect. Calculations are conducted for three conditions, that is, stack effect only, pressurization only and stack effect plus pressurization. Results including the detailed pressure field and flow rate at each floor are represented and the stack effect are effectively visualized. Meanwhile, the pressure of stairwell is increased as much as the summation of the stack effect and pressurization, and the problem induced by rise of pressure is pointed out.

키워드

참고문헌

  1. J. H. Jo, I. H. Yang, M. S. Yeo and K. W. Kim, "A Case Study on the Field Measurement and Reduction of the Stack Effect in High-rise Buildings", Journal of the Architectural Institute of Korea Planning & Design, Vol. 18, No. 7, pp. 169-176 (2002).
  2. I. H. Yang, M. S. Yeo, J. H. Jo and K. W. Kim, "Simulation of the Stack Effect in High-Rise Buildings", Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 14, No. 6, pp. 456-467 (2002).
  3. K. H. Lee, S. M. Kim and Y. H. Park, "A Study on the Air Tightness Performance and Stack Effect Characteristics in High-Rise Apartments", Journal of the Architectural Institute of Korea Planning & Design, Vol. 21, No. 12, pp. 279-286 (2005).
  4. J. S. Kim and E. P. Lee, "Study on the Method of Stack Effect Mitigation by the Elevator Shaft Pressurization at High-rise Buildings", Journal of Korean Institute of Fire Science & Engineering, Vol. 25, No. 6, pp. 178-183 (2011).
  5. J. Y. Kim and H. J. Shin, "A Study on Reduction Method of Stack Effect at Stairwell of High-Rise Building", Journal of Korean Institute of Fire Science & Engineering, Vol. 25, No. 5, pp. 14-20 (2011).
  6. B. S. Son and J. S. Kim, "A Study on Performance Improvement Measures of Pressurized Smoke Control Systems for Exit Passageways of High-Rise Buildings", Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 21, No. 12., pp. 703-714 (2009).
  7. J. Y. Kim, "Field Experiment on Influence of Stack Effect to Pressure Differential System for Smoke Control", Journal of Korean Institute of Fire Science & Engineering, Vol. 22, No. 3, pp. 194-200 (2008).
  8. J. Y. Kim and H. J. Shin, "Numerical Analysis on Pressurization System of Smoke Control in Consideration of Flow Rate of Supply and Leakage", Journal of Korean Institute of Fire Science & Engineering, Vol. 24, No. 5, pp. 87-93 (2010).
  9. NIST, "CONTAMW Ver.3.1" (2013).