Critical heat and mass transfer at pilot ignition and extinction of a material

✍ Scribed by D.J. Rasbash; D.D. Drysdale; D. Deepak

• Book ID: 103904109
• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 823 KB
• Volume: 10
• Category: Article
• ISSN: 0379-7112
• DOI: 10.1016/0379-7112(86)90026-3

✦ Synopsis

Traditionally, pilot ignition of a combustible solid is associated with a critical heat flux to the surface and a surface temperature necessary to produce the volatiles. More fundamentally, it can be interpreted in terms of a critical mass flow of volatiles sufficient to support a nascent flame capable of losing heat to the surface without the flame temperature being reduced to a value below which the flame is extinguished. Measurement of the critical mass flowrate at pilot ignition provides a method of quantifying ignition and extinction conditions in terms of basic properties of the solid and its decomposition products.