scholarly journals EXPERIMENTAL AND THEORETICAL STUDY OF THE EFFECT OF SECONDARY AIR DIRECTION ON NATURAL GAS DIFFUSION FLAME

2012 ◽  
Vol 16 (1) ◽  
pp. 12-23
Author(s):  
Mohamed Farag
Keyword(s):  
Natural Gas ◽  
Diffusion Flame ◽  
Theoretical Study ◽  
Gas Diffusion ◽  
Secondary Air

Comparative experimental and numerical investigation of a piloted turbulent natural-gas diffusion flame

1994 ◽  
Vol 25 (1) ◽  
pp. 1241-1248 ◽  
Author(s):  
T.W.J. Peeters ◽  
P.P.J. Stroomer ◽  
J.E. de Vries ◽  
D.J.E.M. Roekaerts ◽  
C.J. Hoogendoorn
Keyword(s):  
Natural Gas ◽  
Numerical Investigation ◽  
Diffusion Flame ◽  
Gas Diffusion

Effect of Swirl Number on Combustion Characteristics in a Natural Gas Diffusion Flame

2013 ◽  
Vol 135 (4) ◽  
Author(s):  
İlker Yılmaz
Keyword(s):  
Fluid Dynamics ◽  
Natural Gas ◽  
Diffusion Flame ◽  
Recirculation Zone ◽  
Reaction Scheme ◽  
Gas Diffusion ◽  
Combustion Characteristics ◽  
Model Parameters ◽  
Swirl Number ◽  
Simulation Results

This paper presents the effect of swirl number on combustion characteristics such as temperature, velocity, gas concentrations in a natural gas diffusion flame. Numerial simulations carried out using the commercial computational fluid dynamics (CFD) code, Fluent by choosing appropriate model parameters. The combustion reaction scheme in the flame region was modeled using eddy dissipation model with one step global reaction scheme. A standard k-ε turbulence model for turbulent closure and P-I radiation model for flame radiation inside the combustor is used in the numerical simulations. In order to investigate the swirling effect on the combustion characteristics, seven different swirl numbers including 0; 0.1; 0.2; 0.3; 0.4; 0.5; and 0.6 are used in the study. Numerical results are validated and compared with the published experimental and simulation results. A good consistency is found between the present results and those published measurement and simulation results in the available literature. The results shown that the combustion characteristics such as the flame temperature, the gas concentrations including CO2, H2O, O2, and CH4 are strongly affected by the swirl number. Depending on the degree of swirl, the fluid dynamics behavior of natural gas diffusion flame including axial velocity distribution, central recirculation zone (CTRZ) and external recirculation zone (ETRZ) were also strongly affected.

Prediction of a high swirled natural gas diffusion flame using a PDF model

Fuel ◽  
2009 ◽  
Vol 88 (2) ◽  
pp. 374-381 ◽  
Author(s):  
A. Khelil ◽  
H. Naji ◽  
L. Loukarfi ◽  
G. Mompean
Keyword(s):  
Natural Gas ◽  
Diffusion Flame ◽  
Gas Diffusion ◽  
Pdf Model

Monte Carlo PDF modelling of a turbulent natural-gas diffusion flame

1997 ◽  
Vol 1 (1) ◽  
pp. 79-96 ◽  
Author(s):  
P.A. Nooren ◽  
H.A. Wouters ◽  
T.W.J. Peeters ◽  
D. Roekaerts ◽  
U. Maas ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Natural Gas ◽  
Diffusion Flame ◽  
Gas Diffusion

Modeling of natural-gas diffusion in oil-saturated tight porous media

Fuel ◽  
2021 ◽  
Vol 300 ◽  
pp. 120999
Author(s):  
Mohammad Hossein Doranehgard ◽  
Son Tran ◽  
Hassan Dehghanpour
Keyword(s):  
Porous Media ◽  
Natural Gas ◽  
Gas Diffusion ◽  
Tight Porous Media
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