THEORETICAL AND NUMERICAL ANALYSIS OF FUEL DROPLET COMBUSTION PROCESS WITH CONVENTIONAL AND TRANSIENT MODELS
Main Article Content
Abstract
The study introduces a theoretical analysis and numerical solution for the combustion of a hydrocarbon fuel droplet inside the combustion chamber. The study employs two mathematical models to analyze the combustion process. Conventional (Classical) model and Transient model. The combustion process of a stagnant droplet in the steady state was analyzed in the classical model, while, In the transient model, it was assumed that there is a period of time in the stages of the droplet combustion in which the droplet is heated before combustion. The effect of change in temperature on the thermo-physical properties of the fuel was adopted through the two models. For the classical model, a convenient approximation was adopted for the heat transferred inside the
droplet.
Article Details
How to Cite
Publication Dates
References
Abraham, J., 2001,"Improved Modeling of Drop Vaporization and Combustion in Sprays", Purdue University, Lafayette School of Mech. Eng.
Andrews, J.R., Biblarz, O., 1981," Temperature Dependence of Gas Properties in polynomial Form ", Naval Postgraduate School, NPS67-81-001, January.
Chigier, N. , 1981, " Energy, Combustion, and Environment ", McGraw-Hill, Inc..
Dombrovsky, L.A., Sazhin, S.S., 2003, "A Simplified Non-isothermal Model for Droplet Heating and Evaporation", Int. Comm. Heat Mass Transfer, Vol. 30, No. 6, pp. 787-796.
Godsave, G.A.E., 1953, "Studies of the combustion of Drops in a Fuel Spray : The Burning of Single Drops of Fuel" Fourth Symposium ( International ) on Combustion, Williams and Wilkins, Baltimore, pp. 813-839.
Goldsmith, M., Penner, S.S. , 1954, "On the Burning of Single Drops of Fuel in an Oxidizing Atmosphere", Jet propulsion, Vol. 24, pp. 245.
Hohmann, S., Renz, U., 2003 "Numerical Simulation of Fuel Spray at High Ambient Pressure: The Influence of Real Gas Effects and Gas Solubility on Droplet Vaporization", Int. Journal of Heat and Mass Transfer, Vol. 46, pp. 3017-3028.
Kotake, S., Okazaki, T. , 1969, "Evaporation and Combustion of Fuel Droplet", Int. J. Heat and Mass Transfer , Vol. 12 , pp. 595-610.
Kuo. KK., 1986, "Principles of Combustion", John Wiley and Sons Inc..
Lamnna, G., et.al., 2004, "On the Evaporation of a Monodisperse Droplet stream at High Pressure", XXI. ICTAM, 15-21 August, Warsaw, Poland.
Law, C.K. , 1976, "Unsteady Droplet Combustion with Droplet Heating", Combustion and Flame, Vol. 26, pp. 17-22.
Law, C.K. , 1982, "Resent Advanced in Droplet Vaporization and Combustion", Prog. Energy Combust. Sci., Vol. 8, pp.171-201.
Law, C.K., Sirignano, W.A.,1977 "Unsteady Droplet Combustion with Droplet Heating II : Conduction Limit", Combustion and Flame, Vol. 28, pp.175-186.
Ried, R.C., Prausnitz, J.M., Poling,B.E.,1987, "The Properties of Gases and Liquids", 4th edition, McGraw-Hill, Inc..
Sazhin, S.S.,2005, "New Approach to Numerical Modeling of Droplet Transient Heating and Evaporation", Int. Journal of Heat and Mass Transfer, Vol. 48, pp. 4215-4228.
Sazhin, SS., et. al., 2004, "Numerical Modeling of Droplet Transient Heating and Evaporation", School of Engineering, University of Brighton
Spalding, D.B., 1953, "The combustion of Liquid Fuels", 4th Symposium on Combustion, pp. 864-874.
Sparrow, E.M., Gregg, J.L., 1958, "Similar Solutions for Free convection From A Nonisothermal vertical Plate", Trans. Of the ASME, Vol. 80, pp. 379-386.
Turns, S.R., 2000, "An Introduction to Combustion Concepts and Applications", Second Edition, McGraw-Hill International Editions.
Williams, A., Sirignano, 1983, "Fuel Droplet Vaporization and Spray Combustion Theory", Prog. Energy Combust. Sci. , Vol. 9, pp. 291-322.
Williams, F.A., 1965, "Combustion Theory", Addison-Wesley Publishing Company, Inc.
Yan, C., Aggarwal, S.K.,2006, "A high-Pressure Droplet Model for Spray Simulations", Transaction of ASME, Vol. 128, pp. 482-492.