Ignition characteristics of liquid hydrocarbon fuels as single droplets

An investigation into the effects of fuel boiling point and chemical type on the autoignition of single droplets of a number of pure hydrocarbons is reported. Ignition delay times were measured using the suspended droplet technique, and a numerical model was developed to extract reaction rate constants for the fuels. The results show that both fuel boiling point and chemical kinetics are important contributors to the ignition delay. Une etude sur les effets du point d'ebullition et du type chimique du carburant sur l'allumage de gouttelettes individuelles de nombreux hydrocarbures, est presentee. Le delai d'allumage fut mesure pour des gouttelettes suspendues, et un modele mathematique fut developpe pour determiner les coefficients de reaction pour chaque carburant. Les resultats demontrent que le point d'ebullition ainsi que la cinetique chimique contribuent largement au delai d'allumage.

[1]  T. Saitoh,et al.  An experimental study of droplet ignition characteristics near the ignitable limit , 1982 .

[2]  N. Riley,et al.  Transient evaporation and combustion of a composite wateroil droplet , 1977 .

[3]  M. Abdou,et al.  The Self Ignition of Fuel Drops in Heated Air Streams , 1962 .

[4]  C. Law.  Asymptotic theory for ignition and extinction in droplet burning , 1975 .

[5]  G. Faeth,et al.  The Ignition of Hydrocarbon Fuel Droplets in Air , 1968 .

[6]  A. Sarofim,et al.  Ignition and Combustion of Liquid Fuel Droplets Part II: Ignition Studies , 1986 .

[7]  K. Kobayasi.  An experimental study on the combustion of a fuel droplet , 1955 .

[8]  J. Sangiovanni,et al.  A Theoretical and Experimental Investigation of the Ignition of Fuel Droplets , 1977 .

[9]  A. F. Mills,et al.  Droplet evaporation: Effects of transients and variable properties☆ , 1975 .

[10]  E. M. Goodger,et al.  Spontaneous ignition research: review of experimental data , 1987 .

[11]  H. C. Simpson,et al.  Combustion of droplets of heavy liquid fuels , 1955 .

[12]  A. Teodorczyk.  Ignition of Liquid Fuel Droplet in a Hot, Stagnant Oxidizing Atmosphere-Numerical Computations , 1984 .

[13]  S. Aggarwal.  Effects of internal heat transfer models on the ignition of a fuel droplet , 1985 .

[14]  B. Wood,et al.  An experimental study of fuel droplet ignition , 1969 .

[15]  Hiroyuki Hiroyasu,et al.  Spontaneous Ignition Delay of a Fuel Droplet in High Pressure and High Temperature Gaseous Environments , 1976 .

[16]  C. Westbrook,et al.  Simplified Reaction Mechanisms for the Oxidation of Hydrocarbon Fuels in Flames , 1981 .

[17]  N. Nishiwaki.  Kinetics of liquid combustion processes: Evaporation and ignition lag of fuel droplets , 1955 .

[18]  C. Law.  Theory of thermal ignition in fuel droplet burning , 1978 .