Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
EXPERIMENTAL STUDY OF ATOMIZATION PARAMETERS FROM A SINGLE-HOLE PORT FUEL INJECTOR WITH N-HEPTANE
Submission Author:
Ednir Luís Pedro Nigra Júnior , SP
Co-Authors:
Rogério Gonçalves dos Santos, Newton Fukumasu, Rafael da Cruz Ribeiro Berti, GUENTHER Krieger Filho
Presenter: Ednir Luís Pedro Nigra Júnior
doi://10.26678/ABCM.ENCIT2016.CIT2016-0706
Abstract
The interest in studying the atomization parameters arises from the needed to better understand the behavior of the spray drops formed in several industrial processes and many other applications. To illustrate the importance of studying these spray characteristics, in internal combustion engine can be found that fuel atomization has a strong relation with the fuel consumption and pollutant emissions as well as the engine combustion efficiency. In this work, experiments are performed to investigate the atomization parameters of an automotive single-hole port fuel injector. The n-heptane is used as test fluid. The evaluations of drop sizes, drop size distributions and drop velocities are performed by Phase Doppler Particle Analyzer (PDPA) technique. Results for drop sizing are expressed in terms of Sauter Mean Diameter (SMD) and arithmetic mean diameter (D10). The measurements are taken in the core of the spray into six different axial positions from the nozzle tip with 300 kPa injection pressure. Results indicate that the drop size distributions tend to have droplets with large diameter for the distances further from the nozzle tip. The same results are observed in SMD and D10. For the drop velocities, the results present a slightly decreasing in the droplet velocity for the distances further from the nozzle tip.
Keywords
drop size distribution, Drop velocity, N-heptane atomization, PDPA, SMD
