INFLUENCE OF BIOFUEL ADDITIONS ON THE IGNITION DELAY OF SINGLE DIESEL FUEL DROPS

The behavior of single drops of two- and three-component mineral diesel fuel blends with ethanol and rapeseed oil methyl ester in a heated atmosphere has been investigated. With the use of the known quasi-stationary approach, the infl uence of the thermal properties of fuel blend components and their composition on the ignition delay time of the drop has been investigated. It has been established that under inert heating conditions of the drop, additions of low-boiling ethanol to diesel fuel should shorten the duration of the preignition period, and additions of rapeseed oil methyl ester should, on the contrary, prolong it. Analysis of the obtained data has made it possible to determine the optimal composition of the fuel blend for the most economical operation of the diesel. The prognostic estimates made are confi rmed by laboratory experiments and bench tests of fuel blends.
   
Author:  A. K. Kopeika, V. V. Golovko, A. N. Zolotko, L. Raslavičius, and V. M. Lubarskii
Keywords:  biofuel, diesel fuel, fuel blend, drop, ignition, ignition delay time
Page:  948