A study on next generation zone smoke transport model and basis of practical usage

下一代区域烟气输送模型研究及实用化基础

• 批准号: 23360256
• 负责人: HARADA Kazunori
• 金额: $ 13.06万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23360256/
• 关键词: 煙流動; ゾーンモデル; 流れ性状; 燃焼モデル; 散乱光; 避難性状; 床面照度; 視野輝度; 火災性状; 煙による散乱光; 視野輝度分布; 区画内床面照度

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.

本研究的目的是改进与人员疏散和消防人员活动有关的建筑物火灾和烟气蔓延预测方法。为了模拟大范围的火灾和烟雾现象，进行了水平顶棚通风口内烟气运动的模型试验。推导了双向流动的起始条件。在双向区域，空气和烟气的质量流量的经验公式提出。为了模拟房间内可燃物的燃烧行为，聚氨酯块在邻近墙壁表面燃烧，在那里它们接收来自墙壁的热反馈。针对烟气颗粒物对视线的遮挡和地板亮度的降低，对烟气颗粒物的光散射特性进行了测量和公式化。在改进区域模型的同时，正在实施这些新开发的子模型，以便预测更加现实。

项目成果

Prediction Model for Target Luminance in Fire Smoke by Taking into Consideration the Adhesion of Smoke Particles Original Research Article

考虑烟雾颗粒粘附力的火灾烟雾中目标亮度预测模型原始研究文章

• DOI: 10.1016/j.proeng.2013.08.091
• 发表时间: 2013
• 期刊: Procedia Engineering
• 作者: Yuki Akizuki;Takeyoshi Tanaka
• 通讯作者: Takeyoshi Tanaka

コーンカロリーメータ試験装置による合板の着火温度と熱慣性の測定

使用锥形量热仪测试装置测量胶合板的着火温度和热惯性

• 发表时间: 2013
• 作者: 土橋常登;原田和典
• 通讯作者: 原田和典

周壁からの熱フィードバックを考慮した立体可燃物の熱流束の予測に関する研究

考虑周围壁面热反馈的三维可燃物体热通量预测研究

• 发表时间: 2013
• 作者: 池正熏;井戸和彦;原田和典;大宮喜文;野秋政希
• 通讯作者: 野秋政希

Prediction model for target luminance in fire smoke by taking into consideration the adhesion of smoke particles

考虑烟雾颗粒附着力的火灾烟雾中目标亮度预测模型

• 发表时间: 2013
• 期刊: Procedia Engineering
• 作者: Yuki Akizuki;Takeyoshi Tanaka
• 通讯作者: Takeyoshi Tanaka

室のスケールを考慮したフラッシュオーバー限界発熱速度の予測式

考虑房间尺度的闪络临界发热率预测公式

• 发表时间: 2014
• 作者: 李ソンチャン;原田和典
• 通讯作者: 原田和典