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Influence of staircase ventilation state on the airflow and heat transfer of the heated room on the middle floor of high rise building

Author

Listed:
  • Shi, W.X.
  • Ji, J.
  • Sun, J.H.
  • Lo, S.M.
  • Li, L.J.
  • Yuan, X.Y.

Abstract

Safety and energy efficiency of high rise buildings have attracted public attention in recent decades. In this paper, a set of experiments was conducted in a scaled building model with 12 floors to study the influence of the staircase ventilation state on the flow and heat transfer of the heated room on the middle floor. The airflow, room temperature and fuel burning rate were investigated. It is found that when the window above the heated room is opened, the vents state below the heated room has a significant effect on the airflow and heat transfer in the heated room. When the vents below the heated room are closed, the single-directional air flows into the heated room owing to the stronger stack effect. And the flame tilt angle is larger and the upper hot smoke temperature in the heated room is low. However, when the windows above the heated room are closed, the vents state below the heated room has little influence on the airflow and heat transfer in the heated room. And, there is two-directional air flowing through the door of the heated room The burning rate of heat source is also affected by the staircase ventilation state, and the variation trend varies with the opened window position and pool size.

Suggested Citation

  • Shi, W.X. & Ji, J. & Sun, J.H. & Lo, S.M. & Li, L.J. & Yuan, X.Y., 2014. "Influence of staircase ventilation state on the airflow and heat transfer of the heated room on the middle floor of high rise building," Applied Energy, Elsevier, vol. 119(C), pages 173-180.
    • Handle: RePEc:eee:appene:v:119:y:2014:i:c:p:173-180
    DOI: 10.1016/j.apenergy.2013.12.055
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    References listed on IDEAS

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