Abstract
Diffusion combustion of a film of a liquid fuel (n-undecane andn-butanol) deposited on the surface of a thin metal substrate is studied experimentally and theoretically. The experimental data obtained show that the mechanism determining the heating and evaporation of the combustible liquid is the heat transfer from the region of combustion products to the heating zone due to the high longitudinal thermal conductivity of the substrate. Prior to combustion, the combustible liquid may evaporate, not reaching the boiling point. A simple model that takes into account these features is proposed. The calculated velocities of flame propagation and temperature profiles are compared to experimental data. It is shown that the model gives a correct description of the dependence of the flame velocity on the substrate thickness, initial temperature, and properties of the substrate and liquid fuel.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. A. Korzhavin, V. A. Bunev, D. M. Gordienko, and V. S. Babkin, “Behavior of flames propagating over liquid films with metallic substrates,”Fiz. Goreniya Vzryva,34, No. 3, 15–18 (1998).
J. N. de Ris, “Spread of a laminar diffusion flame,” in:Twelfth Symp. (Int.) on Combustion, The Combustion Inst., Pittsburg, PA (1969), pp. 241–252.
I. S. Wichman, “Theory of opposed-flow flame spread,”Prog. Energ. Combust. Sci.,18, 553–593 (1992).
S. S. Rybanin, S. L. Sobolev, and L. N. Stesik, “Theory of propagation of a laminar diffusion flame over the surface of a combustible material,” in: A. G. Merzhanov (ed.),Chemical Physics of the Combustion and Explosion Processes. Combustion of Condensed and Heterogeneous Systems [in Russian], Chernogolovka (1980), pp. 32–38.
M. Sibulkin, W. Ketelhut, and S. Feldman, “Effects of orientation and external flow velocity on flame spreading over thermally thin paper strips,”Combust. Sci. Technol.,9, 75–77 (1974).
D. L. Simms, “Ignition of cellulosic materials by radiation,”Combust. Flame,4, No. 4, 293–300 (1960).
S. S. Rybanin and S. L. Sobolev, “Velocity and limits of combustion of a condensed substance during heat exchange with an inert medium,” Preprint, Joint Inst. of Chem. Phys., Russ. Acad. of Sci., Chernogolovka (1988).
W. A. Sirignano and I. Glassman, “Flame spreading above liquid fuels: Surface-tension-driven flows,”Combust. Sci. Technol.,1, 307–312 (1970).
A. Ito, T. Konishi, A. Narummi, et al., “The measurement of transient 2-D profiles of velocity and fuel concentration over liquids,” in:Proc. of the ASME Heat Transfer Division, Vol. 2, ASME (1997).
B. V. Deryagin and N. V. Churaev,Wetting Films [in Russian], Nauka, Moscow (1984).
N. B. Vargaftik,Handbook on Thermophysical Properties of Gases and Liquids [in Russian], Nauka, Moscow (1972).
I. K. Kikoin (ed.),Tables of Physical Quantities [in Russian], Atomizdat, Moscow (1976).
S. S. Kutateladze,Heat Transfer and Hydrodynamic Resistance: Handbook [in Russian], Énergoatomizdat, Moscow (1990).
Author information
Authors and Affiliations
Additional information
Translated fromFizika Goreniya i Vzryva, Vol. 36, No. 5, pp. 12–21, September–October, 2000.
This work was partly supported by INTAS (Grant No. 96-1173) and the Russian Foundation for Fundamental Research (Grant No. 00-03-32417).
Rights and permissions
About this article
Cite this article
Namyatov, I.G., Minaev, S.S., Babkin, V.S. et al. Diffusion combustion of a liquid fuel film on a metal substrate. Combust Explos Shock Waves 36, 562–570 (2000). https://doi.org/10.1007/BF02699518
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02699518