Fuel Atomization by Flashing of a Volatile Liquid in a Liquid Jet

1996 ◽  
Author(s):  
Michal Zeigerson-Katz ◽  
Eran Sher
Keyword(s):  
Liquid Jet ◽  
Fuel Atomization ◽  
Volatile Liquid

scholarly journals Breakup of Volatile Liquid Jet in Hot Cross Flow

2015 ◽  
Vol 15 ◽  
pp. 18-25 ◽  
Author(s):  
R. Surya Prakash ◽  
Anubhav Sinha ◽  
B.N. Raghunandan ◽  
Gaurav Tomar ◽  
R.V. Ravikrishna
Keyword(s):  
Cross Flow ◽  
Liquid Jet ◽  
Volatile Liquid

Simulation of Liquid Fuel Atomization in an Industrial Spray Nozzle of a Powerplant Boiler

2010 ◽  
Author(s):  
Iman Mirzaii ◽  
Hasan Sabahi ◽  
Mohammad Passandideh-Fard ◽  
Nasser Shale
Keyword(s):  
High Pressure ◽  
Combustion Chamber ◽  
Liquid Fuel ◽  
Drop Size ◽  
Liquid Jet ◽  
Nozzle Orifice ◽  
Injector Nozzle ◽  
Fuel Atomization ◽  
Pressure Steam ◽  
Atomization Zone

In this study, the liquid fuel atomization in the injector nozzle of the combustion chamber of a powerplant boiler is numerically simulated. The atomization of a liquid fuel injector is characterized by drop size distribution of the nozzle. This phenomenon plays an important role in the performance of the combustion chamber such as the combustion efficiency, and the amount of soot and NOx formation inside the boiler. The injector nozzle, considered in this study, belongs to a powerplant boiler where the liquid fuel is atomized using a high pressure steam. First, the geometric characteristics of the injector are carefully analyzed using a wire-cut process and a CAD model of the nozzle is created. Next, one of the nozzle orifices and the atomization zone where the high pressure steam meets the liquid fuel is recognized. The computational domain is extended long enough to cover the whole atomization zone up to the end of the orifice. The flow governing equations are the continuity and Navier-Stokes equations. For tracking the liquid/gas interface, the Volume-of-Fluid (VOF) method along with Youngs’ algorithm for geometric reconstruction of the free surface is used. The simulation results show the details of the liquid and steam flow inside the nozzle including velocity distribution and shape of the liquid/gas interface. It is found that the liquid breakup to ligaments and the atomization of liquid to droplets do not occur inside the nozzle orifice. A liquid jet with certain cross sectional shape leaves the orifice surrounded by a high speed steam. The numerical model provides the shape of the liquid jet, and the steam and fuel velocity distributions at the exit of the nozzle orifice. These parameters are then correlated to the final drop size distribution using analytical/experimental correlations available in literature.

ENHANCEMENT OF THE ATOMIZATION OF A LIQUID JET BY CAVITATION IN A NOZZLE HOLE

2001 ◽  
Vol 11 (2) ◽  
pp. 14 ◽  
Author(s):  
N. Tamaki ◽  
M. Shimizu ◽  
Hiroyuki Hiroyasu
Keyword(s):  
Liquid Jet ◽  
Nozzle Hole

NONLINEAR SIMULATION OF A HIGH-SPEED, VISCOUS LIQUID JET

1998 ◽  
Vol 8 (2) ◽  
pp. 155-178 ◽  
Author(s):  
J. H. Hilbing ◽  
Stephen D. Heister
Keyword(s):  
Viscous Liquid ◽  
High Speed ◽  
Liquid Jet ◽  
Nonlinear Simulation

TRAJECTORY AND MOMENTUM COHERENCE BREAKDOWN OF A LIQUID JET IN HIGH-DENSITY AIR CROSS-FLOW

2007 ◽  
Vol 17 (1) ◽  
pp. 47-70 ◽  
Author(s):  
Raffaele Ragucci ◽  
Alessandro Bellofiore ◽  
Antonio Cavaliere
Keyword(s):  
Cross Flow ◽  
High Density ◽  
Liquid Jet

DROPLET FORMATION FROM A THIN HOLLOW LIQUID JET WITH A CORE AIR FLOW

2005 ◽  
Vol 15 (5) ◽  
pp. 469-488 ◽  
Author(s):  
Chul Jin Choi ◽  
Sang Yong Lee
Keyword(s):  
Air Flow ◽  
Droplet Formation ◽  
Liquid Jet

DETECTION OF AERODYNAMIC EFFECTS IN LIQUID JET BREAKUP AND DROPLET FORMATION

1999 ◽  
Vol 9 (4) ◽  
pp. 331-342 ◽  
Author(s):  
Michael P. Moses ◽  
Steven H. Collicott ◽  
Stephen D. Heister
Keyword(s):  
Droplet Formation ◽  
Liquid Jet ◽  
Jet Breakup

A BOUNDARY-ELEMENT METHOD FOR ATOMIZATION OF A FINITE LIQUID JET

1995 ◽  
Vol 5 (6) ◽  
pp. 621-638 ◽  
Author(s):  
J. H. Hilbing ◽  
Stephen D. Heister ◽  
C. A. Spangler
Keyword(s):  
Boundary Element Method ◽  
Boundary Element ◽  
Liquid Jet ◽  
Element Method

Nonisothermal Mixing of a Near-Wall Gas-Liquid Jet with a Flow in a Tube

2001 ◽  
Vol 32 (4-6) ◽  
pp. 7
Author(s):  
Viktor I. Terekhov ◽  
K. A. Sharov ◽  
N. E. Shishkin ◽  
V. P. Lebedev
Keyword(s):  
Liquid Jet ◽  
Near Wall
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