The ignition of combustible gases by flames

✍ Scribed by H.G. Wolfhard; D.S. Burgess

• Publisher: Elsevier Science
• Year: 1958
• Tongue: English
• Weight: 511 KB
• Volume: 2
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(58)90016-6

✦ Synopsis

The ignition of a stoichiometrie methane-nitric oxide mixture by stationary pilot flames has been investigated. These pilot flames can be burned indefinitely in the surrounding explosive mixture without causing ignition if the temperature or mass flow of the pilot is insufficient. For very small pilot flames the condition for ignition is a minimum energy flow (cal/s), whereas for large pilots a minimum temperature is necessary. This minimum ignition temperature is little related to the spontaneous ignition temperature. Ignition does not occur close to the burning zone of the pilot, but at the end of a luminous reacting column in which reaction rates, diffusion processes and heat conduction are the determining processes.