典型地铁立交站多源火灾应急通风方式研究

IF 1.1 4区 工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY
Jipeng Wang, Yan Wang, Fan Wu, Peihong Wu, Juncheng Jiang
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引用次数: 0

摘要

大型换乘站的防火设计一直是一个很大的挑战。本文通过一系列数值模拟研究了三种可能的多源火灾情况下应急通风方式的性能。分析了影响乘客疏散的参数。结果表明,不合理的协同通风方式增强了其他线路的烟雾传播。实践中必须考虑不同线路通风方式之间的相互作用。当两条线路同一楼层发生多源火灾时,最有效的方案是每条线路采用相同的通风方式。当多源火灾发生在两条线路的不同楼层时,很难保持每条线路的排风能力平衡。最后根据全站的排烟能力,提出了三种火灾情景下的最优通风方式。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study on emergency ventilation mode for multisource fires in a typical interchange subway station
Abstract The fire protection design in a large-scale interchange station is always a great challenge. In this paper, a series of numerical simulations were conducted to investigate the performance of emergency ventilation modes for three potential multisource fire scenarios. The parameters that influence passengers’ evacuation were analyzed. The results demonstrated that unreasonable co-operation ventilation mode enhances the smoke propagation in other lines. The interaction of ventilation modes in different lines must be considered in practice. When the multisource fires occur on the same floor of both lines, the most effective scheme is to adopt the same ventilation mode in each line. When the multisource fires occur on different floors of both lines, it is difficult to maintain a balance of the exhaust capability in each line. The optimal ventilation modes were finally proposed for three fire scenarios based on the smoke discharge capability in the whole station.
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来源期刊
International Journal of Ventilation
International Journal of Ventilation CONSTRUCTION & BUILDING TECHNOLOGY-ENERGY & FUELS
CiteScore
3.50
自引率
6.70%
发文量
7
审稿时长
>12 weeks
期刊介绍: This is a peer reviewed journal aimed at providing the latest information on research and application. Topics include: • New ideas concerned with the development or application of ventilation; • Validated case studies demonstrating the performance of ventilation strategies; • Information on needs and solutions for specific building types including: offices, dwellings, schools, hospitals, parking garages, urban buildings and recreational buildings etc; • Developments in numerical methods; • Measurement techniques; • Related issues in which the impact of ventilation plays an important role (e.g. the interaction of ventilation with air quality, health and comfort); • Energy issues related to ventilation (e.g. low energy systems, ventilation heating and cooling loss); • Driving forces (weather data, fan performance etc).
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