On the existence of low-velocity flame propagation in an inert porous medium wetted with hydrocarbon fuel

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Doklady Physical Chemistry

OSTI ID:28658

Korzhavin, A A; Bunev, V A; Babkin, V S ^[1]

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1. Institute of Chemical Kinetics and Combustion, Novosibirsk (Russian Federation)

The propagation of combustion waves in inert porous fuel-wetted media is of considerable theoretical interest because the wave propagation mechanism inherent therein involves the interdependent processes of chemical conversion and mixing of components. The practical importance of this problem arises from the possibility of an inert porous medium becoming explosive when wetted with a liquid fuel, either under controlled conditions or accidentally. A study of an inert porous medium wherein a liquid hydrocarbon coats the surface of inert particles, and a gaseous oxidizer fills the pore volume, showed that chemical conversion waves may propagate in this medium as either detonation waves at 400-1200 m/s or subsonic combustion waves at 80-300 m/s. A conclusion was made that combustion waves could not propagate with lower velocities in such a medium. In this work, the authors report the experimental results that demonstrate the possibility of steady combustion waves propagating in fuel-wetted porous media with the velocities of about 4-10 cm/s.

• OSTI ID: 28658
• Journal Information: Doklady Physical Chemistry, Journal Name: Doklady Physical Chemistry Journal Issue: 1-6 Vol. 337; ISSN 0012-5016; ISSN DKPCAG
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
FLAME PROPAGATION
FUELS
HYDROCARBONS
POROUS MATERIALS