Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
CHARACTERISTIC DIAMETERS OF BIODIESEL SPRAYS BY A BLURRY INJETOR
Submission Author:
FERNANDO DE SOUZA COSTA , SP
Co-Authors:
Claudia Gonçalves de Azevedo
Presenter: FERNANDO DE SOUZA COSTA
doi://10.26678/ABCM.ENCIT2016.CIT2016-0398
Abstract
The combustion processes in engines and turbines are heavily dependent on the quality of atomization. A blurry injector is an air-blast injector that presents a backflow of gas into the liquid feed tube and can generate a relatively uniform spray with small droplets. This paper presents and compares the characteristic diameters of B100 soy biodiesel through a blurry injector as function of the air-liquid mass ratio with different liquid mass flow rates. Two exit geometries of the blurry injector were considered: cylindrical and divergent. Most mean characteristic diameters considered have decreased continuously with air liquid mass ratio, for both nozzle geometries and for all liquid mass rates considered. In most cases Djk varied, approximately, linearly with D30, for D30 < 150 micra, and with the square of D30, for D30 > 200 micra.
Keywords
Blurry injector, Characteristic Diameters, Spray, nozzle geometry
