APPLICATION OF THE EXTENDED WEIGHTED SUM OF GRAY GASES MODELTO LIGHT FUEL OIL SPRAY COMBUSTION

2002 ◽  
Vol 174 (7) ◽  
pp. 37-70 ◽  
Author(s):  
SEUNG WOOK BAEK ◽  
HAN SEOK KIM ◽  
MYOUNG JONG YU ◽  
SHIN JAE KANG ◽  
MAN YOUNG KIM
Keyword(s):  
Fuel Oil ◽  
Spray Combustion ◽  
Weighted Sum

Application of the Extended Weighted Sum of Gray Gases Model to Light Fuel Oil Spray Combustion

2002 ◽  
Vol 174 (7) ◽  
pp. 37-70 ◽  
Author(s):  
Seung Wook Baek ◽  
Han Seok Kim ◽  
Myoung Jong Yu ◽  
Shin Jae Kang ◽  
Man Young Kim
Keyword(s):  
Fuel Oil ◽  
Spray Combustion ◽  
Weighted Sum

3D-CFD Lagrangian Spray Simulations for Large Two Stroke Marine Diesel Engines Compared With Experimental Data of a Spray Combustion Chamber

2012 ◽  
Author(s):  
M. Bolla ◽  
M. A. Cattin ◽  
Y. M. Wright ◽  
K. Boulouchos ◽  
R. Schulz
Keyword(s):  
Experimental Data ◽  
Combustion Chamber ◽  
Numerical Data ◽  
Swirl Flow ◽  
Fuel Oil ◽  
Spray Combustion ◽  
Fuel Quality ◽  
Heavy Fuel Oil ◽  
Marine Engines ◽  
Simulation Results

The behavior of lagrangian spray models for the application in large two stroke marine engines is investigated. 3D-CFD simulations of a Spray Combustion Chamber (SCC) with a single hole (0.875 mm diameter) injector are presented and compared with experimental results. Shadow images of the spray under evaporating and non-evaporating conditions, with and without swirl flow and for different chamber pressures are available by means of which the simulation results are validated. A novel post processing methodology for 3D CFD spray simulations is introduced, which converts the numerical data into images which allows for a more rigorous quantitative comparison with the experimental data. Good agreement of the simulation results with the experiment is reported both in terms of spray penetration as well as concerning the evaporation of the fuel. Since the appropriate discretization of the large volumes typical of 2-stroke marine engines presents a substantial challenge, the influence of the grid resolution is investigated. In addition, the influence of fuel quality on the evolution of the spray morphology is assessed. For this purpose, simulations with heavy fuel oil (HFO) are compared with experiment.

Spray Combustion of Small and Large Droplets of Heavy Fuel Oil

1987 ◽  
Vol 4 (1-2) ◽  
Author(s):  
R. Weber ◽  
F. Boysan ◽  
J. Swithenback ◽  
R. Bolado ◽  
A. Yule
Keyword(s):  
Fuel Oil ◽  
Spray Combustion ◽  
Heavy Fuel Oil

Fluidized Catalytic Cracking Catalyst Microstructure as Determined by A Scanning Ion Microprobe

1990 ◽  
Vol 48 (2) ◽  
pp. 302-303
Author(s):  
J.K. Lampert ◽  
G.S. Koermer ◽  
J.M. Macaoy ◽  
J.M. Chabala ◽  
R. Levi-Setti
Keyword(s):  
Catalytic Cracking ◽  
Secondary Ion Mass Spectrometry ◽  
Fuel Oil ◽  
Ion Microprobe ◽  
Fluidized Catalytic Cracking ◽  
Ion Probe ◽  
Silica Alumina ◽  
Resolution Imaging ◽  
The University ◽  
High Spatial Resolution Imaging

We have used high spatial resolution imaging secondary ion mass spectrometry (SIMS) to differentiate mineralogical phases and to investigate chemical segregations in fluidized catalytic cracking (FCC) catalyst particles. The oil industry relies on heterogeneous catalysis using these catalysts to convert heavy hydrocarbon fractions into high quality gasoline and fuel oil components. Catalyst performance is strongly influenced by catalyst microstructure and composition, with different chemical reactions occurring at specific types of sites within the particle. The zeolitic portions of the particle, where the majority of the oil conversion occurs, can be clearly distinguished from the surrounding silica-alumina matrix in analytical SIMS images.The University of Chicago scanning ion microprobe (SIM) employed in this study has been described previously. For these analyses, the instrument was operated with a 40 keV, 10 pA Ga+ primary ion probe focused to a 30 nm FWHM spot. Elemental SIMS maps were obtained from 10×10 μm2 areas in times not exceeding 524s.

INFLAMMATION, CHEMOKINE EXPRESSION, AND DEATH IN MONOCROTALINE-TREATED RATS FOLLOWING FUEL OIL FLY ASH INHALATION

1997 ◽  
Vol 9 (6) ◽  
pp. 541-565 ◽  
Author(s):  
Cheryl R. Killingsworth ◽  
Francesca Alessandrini ◽  
G. G. Krishna Murthy ◽  
Paul J. Catalano ◽  
Joseph D. Paulauskis ◽  
...  
Keyword(s):  
Fly Ash ◽  
Fuel Oil ◽  
Chemokine Expression ◽  
Oil Fly Ash
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