Prediction of Smoke Layer in a Fire Compartment having a Smoke Shaft

• WATANABE Yuichi

  Fire Research Institute

• MATUSHIMA Sanae

  Fire Research Institute

• YAMADA Tokiyoshi

  Fire Research Institute

Bibliographic Information

Other Title

• 竪シャフトによる自然排煙時の煙層予測に関する研究
• タテシャフト ニヨル シゼン ハイエンジ ノ エンソウ ヨソク ニカンスルケン

Abstract

In order to evaluate the stack effect of the smoke shaft installed in a fire compartment, a series of experiments was conducted with a reduced scale model. Flow rate of exhaust gas through the shaft and smoke height in the compartment were measured. And these experimental data were compared with the predictions based on two layer zone model. <br>As a result, it was found that a certain adjusting parameter was required for prediction of smoke exhaust flow rate in order to predict experimental results with good accuracy. Because the smoke shaft exhausts fresh air of lower zone as well as smoke of upper layer, when the smoke layer thickness under the inlet of the shaft becomes thin.

Journal

• Bulletin of Japan Association for Fire Science and Engineering

  Bulletin of Japan Association for Fire Science and Engineering 43 (1+2), 21-29, 1995

  Japan Association for Fire Science and Engineering

Details

• CRID: 1390001205947795200
• NII Article ID: 10002685791
• NII Book ID: AN0018688X
• DOI: 10.11196/kasai.43.1_2_21
• ISSN: 18835600
• ISSN: 05460794
• NDL BIB ID: 3621041
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3621041
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed