A Case Study on Pressurization Method using HVAC System depends on Outdoor Conditions to Reduce Stack Effect in the High-rise Office Building

초고층 사무소 건물 연돌효과 저감을 위한 외기온별 공조가압방안의 적용 사례연구

  • Cho, Jeong-Hoon ;
  • Yu, Jung-Yeon ;
  • Jung, Yeon-Gi ;
  • Kim, Ki-Chang ;
  • Cho, Dong-Woo
  • 조정훈 ;
  • 유정연 ;
  • 정연기 ;
  • 김기창 ;
  • 조동우
  • Received : 2015.08.27
  • Accepted : 2015.11.13
  • Published : 2015.11.30


This study aims to investigate optimized mechanical pressurization of each outdoor air temperature in order to resolve noise problems associated with stack effect. For this study, noise levels resulted by stack effect was measured during three months of winter, and airtight practices and mechanical pressurization practices of each outdoor air condition employed on a high-rise office building under operation. Noise level was measured in the elevator halls located on the lobby floor(1st floor) and the highest floor (47th floor). The average noise level of the 1st floor was 59 dB(A) under all HVAC system-off, exceeding the recommended level 57 dB(A), even after average of 9dB(A) was reduced after airtight practices were employed, After mechanical pressurization practices as pressurized floor in high-rise zone were employed, most noise levels met the recommended niose level 57 dB(A) for 1F elevator lobby and 48 dB(A) for 47F elevator lobby.


High-rise office building;Stack effect;Pressurization;HVAC system;Case study


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