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Blowout Limits of a Jet Diffusion Flame in the Presence of Small Surrounding Jet Pilot Flames

机译:周围有小型喷射先导火焰时喷射扩散火焰的爆破极限

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摘要

The blowout limit of a methane jet diffusion flame is examined in the presence of a number of much smaller pilot jet flames of different fuels arranged within an experimental burner assembly in a co-flowing stream of air. It is shown that the blowout limit of the central jet flame can be extended very appreciably by increasing the flow rate through the smaller pilot jets. The basis for this extension to the blowout limit and the role of some changes in the operating parameters are discussed. It.is suggested that the extension to the blowout limit observed is due mainly to the thermal contribution of the pilot jet flames.
机译:甲烷射流扩散火焰的吹出极限是在存在于同向流动的空气流中的实验燃烧器组件内的许多不同燃料的较小引燃火焰的存在下进行检查的。结果表明,通过增加流经较小引燃喷嘴的流量,可以非常明显地扩展中央喷射火焰的喷出极限。讨论了扩展到井喷极限的基础以及操作参数的某些更改的作用。建议将所观察到的井喷极限扩展主要是由于引燃喷射火焰的热影响。

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