2013 Fiscal Year Final Research Report
A study on next generation zone smoke transport model and basis of practical usage
| Project/Area Number |
23360256
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Architectural environment/equipment
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| Research Institution | Kyoto University |
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Principal Investigator |
HARADA Kazunori 京都大学, 工学(系)研究科(研究院), 教授 (90198911)
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| Co-Investigator(Kenkyū-buntansha) |
HARA Naoya 関西大学, 環境都市工学部, 准教授 (00330176)
AKIZUKI Yuki 富山大学, 人間発達科学部, 准教授 (00378928)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 煙流動 / ゾーンモデル / 流れ性状 / 燃焼モデル / 散乱光 |
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| Research Abstract |
This study aims at improvement of the prediction methods of fire and smoke spread in buildings in connection with evacuation of occupants and activity of fire-fighters. To include wide range of fire and smoke phenomena, model scale experiments were carried out on smoke movement through horizontal ceiling vent. The onset condition of bi-directional flow was formulated. In the bi-directional regime, experimental formula was proposed for mass flow rates of air and smoke. To simulate the burning behavior of combustibles in a room, polyurethane block was burnt adjacent to wall surfaces, where they receive thermal feedback from walls. As to the sight blockage and decrease of floor luminance, the behavior of light scattering by smoke particles were measured and formulated. While the zone model is being improved, these newly developed sub-models are being implemented so that the prediction could be more realistic.
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