Advances in Automobile Engineering
Open Access

Novel method of atomization of automobile fuels into micro-droplets

2^nd International Conference and Exhibition on Automobile Engineering

December 01-02, 2016 Valencia, Spain

Ladizhensky I, Mezhericher M, Mazor G and Etlin I

Shamoon College of Engineering, Israel

Posters & Accepted Abstracts: Adv Automob Eng

Abstract :

Fine droplets have developed surfaces offering enhanced rates of heat and mass transfer and result in higher efficiency of performance of automobile engines. Recently, new method of generation of mists of ultra-fine droplets has been developed in our laboratory. The invented liquid-atomization process is based on formation of ensembles of micro-sprays, and includes disintegration of bubble shells on liquid surface by gas jets. In the experimental studies, a prototype device implementing the new atomization method was utilized to generate droplets of two types of automobile fuels: 1) petrol, having research octane number (RON) of 95, and 2) diesel. The dispersant of the fuels was compressed atmospheric air supplied at room temperature and pressures in the range of 2-3.5 bar. The obtained droplet size distributions and droplet concentrations were measured using a Malvern Spraytec device. Flow rates of the generated droplet mists were examined by means of continuous weighing the fuel container during the atomization. The prototype device allowed production of ultra-fine mists of petrol droplets of 0.4-0.6 �¼m Sauter mean diameters (the corresponding arithmetic mean diameters were 0.2-0.3 �¼m) with volumetric concentrations in the range of 13-21 ppm and flow rates of 340-500 mg/s. For the diesel fuel atomization, the obtained mists had Sauter mean droplet diameters of 2.1-2.3 �¼m (arithmetic mean diameters among 0.4- 0.6 �¼m), volumetric concentrations of droplets in the range of 22-27 ppm and flow rates of 20-45 mg/s.

Biography :

Email: ladizans@bgu.ac.il