AN EXPERIMENTAL FIRE IN COMPARTMENT WITH DUAL VENT ON OPPOSITE WALLS
AN EXPERIMENTAL FIRE IN COMPARTMENT WITH DUAL VENT ON OPPOSITE WALLS
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DOI：
10.1080/00102200701202650
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发表时间：
2007-06
影响因子：
1.9
通讯作者：
Rajiv Kumar;M. Naveen
中科院分区：
文献类型：
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作者：
Rajiv Kumar;M. Naveen
通风对室内火灾的发生、发展起着重要的作用。文献中对室内火灾行为的研究很多，但大多数研究都是针对单通风口的室内火灾行为进行的。对于具有两个通风口的车厢，只有少数的实验研究。最近，Utiskul（2003）对双排气隔室进行了研究。Utiskul（2003）开发了一个模型，并通过在一个具有双开口的隔间中进行的实验来验证该模型-一个开口位于靠近天花板的上端，另一个开口位于靠近地板的下端，位于同一面墙上。到目前为止，还没有关于位于相对壁上的两个或多个相同尺寸的开口的影响的研究报告，即，在交叉条件下，在一个隔间内火灾的发展（Feasey和布坎南，2002年）。在本研究中，已作出的努力，研究了交叉通风对燃烧速率和温度分布在不同位置的热气体层在室内的影响。在三种不同尺寸的燃料盘中燃烧两种不同的燃料，进行了有无交叉通风的实验。研究结果表明，当火灾规模较大时，交叉通风条件下的温度高于单一通风条件下的温度。在本研究中产生的实验数据也可以用于验证区以及字段模型。
Abstract Ventilation plays an important role in growth and development of fire in compartment. In literature a number of studies on behaviour of fires in compartment are available but most of the studies have been conducted for the compartment with single ventilation opening. Only a few experimental studies are available for compartment with two ventilation openings. Recently, Utiskul (2003) have conducted studies on the dual vent compartment. Utiskul (2003) developed a model and validated it with experiments conducted in a compartment with dual opening—one at upper end near to ceiling and another at lower end near to floor, on the same wall. No study has been reported so far, on the effect of two or more openings of the same size located on opposite wall, i.e., in cross condition, on the development of fire in a compartment (Feasey and Buchanan, 2002). In the present study, an effort has been made to study the effect of cross-ventilation on the burning rates and the temperature profiles at different locations in hot gas layer in the compartment. Experiments have been conducted by burning two different fuels in three different size fuel trays with and without cross-ventilation. It is observed that the temperature in cross ventilation condition are higher than those in single ventilation condition for larger fire size. The experimental data generated in the present study can also be utilized for validation of zone as well as field models.