A Study of Characteristics of the Flame through An Opening of the Burning Room with Supplied Air

燃烧室通气开口火焰特性研究

• 批准号: 13650654
• 负责人: MATSUSHITA Takayuki
• 金额: $ 2.18万
• 依托单位: KOBE UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650654/
• 关键词: Pressurized Smoke; Ejected Flame; Fire Spread to Neigfaborhood building; Model Experiment; Non-dimensional; 噴出火災; 盛期火災; 庇

It is important to control smoke in case of a building fire. One of methods to prevent the inflow of smoke to a safety compartment is the pressurized smoke control, but this method should be carefiri to use because the supplied fresh air has a possibility to enhance a fire. The purposes in this research are to show the influence of the inflow air to fire compartment and the effect of projection to prevent ejected flame through a window. This research is constructed with two steps, one is the model experiment, and the other is a proposal of the prediction method by non-dimensional form for the trajectory of ejected fire plume through a window. The results are as following :1) The temperature in fire compartment with supplied air becomes higher and the trajectory of ejected flame through a window is different from a usual ventilation controlled fire. The projection has a risk of spreading upstairs or neighborhoods of fire, the risk depends on the supplied air flow rate.2) It is shown that the traditional non-dimensional form for fire plume through a window in usual ventilation controlled fire without supplied air is not able to use to predict the trajectory through a window of a fire compartment with supplied fresh air. A new non-dimensional form to predict the trajectory is proposed.

在发生建筑物火灾时，控制烟雾是很重要的。防止烟雾流入安全隔间的方法之一是加压烟雾控制，但这种方法应该谨慎使用，因为提供的新鲜空气可能会加强火灾。这项研究的目的是展示进入的空气对消防室的影响，以及投影对防止火焰从窗户喷出的效果。本研究分两步进行，一是模型试验，二是提出了无因次形式的窗口喷出火焰羽流轨迹的预测方法。结果表明：1)有送风的火灾室内温度升高，从窗户喷出的火焰轨迹不同于通常的通风控制火灾。投影物有蔓延到楼上或火灾附近的危险，这种危险取决于送风速度。2)研究表明，在没有送风的情况下，传统的无因次无因次形式的无因次火灾羽流在有送新风的消防室窗户中是不能被用来预测穿过窗户的。提出了一种新的无量纲形式的弹道预测方法。

项目成果

Takayuki Matsushita and Daisuke Ogura: "Prediction of Flame through an Opening of Burning Room with Supplied Air"Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan. (2003)

Takayuki Matsushita和Daisuke Ogura：“Prediction of Flame through an Opening of Burning Room with Supplied Air”日本建筑学会年会技术论文摘要。

高田 賢二: "火災室給気時における開口部噴出火炎性状に関する研究"日本建築学会近畿支部研究報告集・計画系. 第41号. 345-348 (2001)

Kenji Takada：“向火灾室供气时从开口喷出的火焰特性的研究”日本建筑学会近畿分会研究报告/规划系统第41. 345-348号（2001年）。

Kenji Takata and Takayuki Matsushita: "A Study of Characteristics of the Flame through An Opening in the Burning Room Supplied Air"Summaries of Technical Papers of Annual Meeting Architectural Institute of Japan. 193-194 (2001)

Kenji Takata 和 Takayuki Matsushita：“A Study of Features of the Flame through An Opening in the Burning Room Supplied Air”日本建筑学会年会技术论文摘要。

高田 賢二: "火災室給気時における開口部噴出火炎性状に関する研究"日本建築学会大会学術講演梗概集・防火. 193-194 (2001)

Kenji Takada：“向火灾室供气时从开口喷出的火焰特性的研究”日本建筑学会年会学术讲座论文集/防火193-194（2001）。

松下 敬幸: "火災室給気時における開口部噴出火炎性状の予測について"日本建築学会大会学術講演梗概集・防火. (2003)

Takayuki Matsushita：“对向消防室供气时从开口喷出的火焰特性的预测”，日本建筑学会会议学术讲座论文集/防火（2003 年）。