正庚烷热释放速率测量与研究

Study of heat release rate of normal heptane

以欧洲标准火之一的正庚烷火(TF5)为主要研究对象,在符合ISO9705标准的ISO ROOM全尺寸实验装置内对正庚烷火热释放速率进行测量与研究。通过在多组不同实验条件下,对正庚烷燃烧时的热释放速率等数据分析,发现相同质量的正庚烷在不同尺寸油盘中燃烧,油盘面积越大燃烧越剧烈,但同时油盘尺寸的增大也会带来影响燃烧的消极因素。研究结果还表明相同尺寸的油盘中不同质量正庚烷的燃烧,燃料质量的增加会使燃烧前期发展较缓慢,但是燃烧后期会更加剧烈,其促进燃烧的效应往往会弥补甚至超出前期的发展缓慢所带来的影响。

The major subject of the research is TF5,one of the European standard fires, the measure and research of the heat release rate is carried out in the ISO ROOM, full-scale experimental device under the ISO 9705 criteria. Through varying the experimental ambience and the corresponding data analysis, it is found out that the normal heptane of the same quality would combust differently according to the acreage of the oil basin of a direct ratio ; meanwhile, the accretion of the oil basin would bring some negative effect on the combustion. The result also shows normal heptane of different quality, if burned in the oil basin of the same acreage, the accumulation of the quality would make the combustion rather slow at the beginning while fiercer with the time going on, in the end the enhancing effect it had on the combustion would outweigh that of the reducing effect.