NONEQUILIBRIUM DIFFUSION COMBUSTION OF LIQUID FUEL DROPLETS AND SPRAYS MODELING

2012 ◽  
Vol 43 (1) ◽  
pp. 1-17 ◽  
Author(s):  
Nickolay N. Smirnov ◽  
V. F. Nikitin ◽  
V. V. Tyurenkova
Keyword(s):  
Liquid Fuel ◽  
Diffusion Combustion ◽  
Fuel Droplets

Effect of Additives on the Cetane Ratings of Diesel Fuels as Related to the Ignition Delays of Liquid Fuel Droplets Impinging on a Hot Surface

1972 ◽  
Vol 186 (1) ◽  
pp. 317-321 ◽  
Author(s):  
S. Satcunanathan ◽  
M. S. El Nesr
Keyword(s):  
Ignition Delay ◽  
Liquid Fuel ◽  
Diesel Fuels ◽  
Fuel Droplets ◽  
Effect Of Additives ◽  
Hot Surface

Results of an investigation show that the effects of additives on the ignition delays of liquid fuel droplets impinging on a hot surface correlate satisfactorily with their effects on the cetane ratings of diesel fuels. It is also shown that additives for diesel fuels may be divided into three categories according to their effects on the above mentioned ignition delays, viz. (1) those that reduce the ignition delay at all dosages, (2) those that reduce the ignition delay at small dosages but increase it at high dosage and (3) those that do not have any significant effect on the ignition delay.

scholarly journals Thermodynamic Analysis of Evaporation of Levitated Binary and Ternary Liquid Fuel Droplets under Normal Gravity

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
S. Raghuram ◽  
Vasudevan Raghavan
Keyword(s):  
Gas Phase ◽  
Atmospheric Pressure ◽  
Liquid Fuel ◽  
Normal Gravity ◽  
Hydrocarbon Fuel ◽  
Droplet Surface ◽  
Liquid Equilibrium ◽  
Fuel Droplets ◽  
Ternary Fuel ◽  
Fuel Components

The present study presents a thermodynamic model for predicting the vaporization characteristics of binary and ternary hydrocarbon fuel droplets under atmospheric pressure and normal gravity conditions. The model employs activity coefficients based on UNIFAC group contribution method and evaluates the vapor-liquid equilibrium of binary and ternary droplets. The gas-phase properties have been evaluated as a function of temperature and mixture molecular weight. The model has been validated against the experimental data available in literature. The validated model is used to predict the vaporization characteristics of binary and ternary fuel droplets at atmospheric pressure under normal gravity. Results show multiple slopes in the droplet surface regression indicating preferential vaporization of fuel components based on their boiling point and volatility. The average evaporation rate is dictated by the ambient temperature and also by composition of the mixture.

VAPORIZATION AND OXIDATION OF LIQUID FUEL DROPLETS AT HIGH TEMPERATURE AND HIGH PRESSURE: APPLICATION TON-ALKANES AND VEGETABLE OIL METHYL ESTERS

2004 ◽  
Vol 176 (4) ◽  
pp. 499-529 ◽  
Author(s):  
CÉLINE MORIN∗ ◽  
CHRISTIAN CHAUVEAU ◽  
PHILIPPE DAGAUT ◽  
ISKENDER GÖKALP ◽  
MICHEL CATHONNET
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Vegetable Oil ◽  
Liquid Fuel ◽  
Methyl Esters ◽  
Fuel Droplets ◽  
Pressure Application
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