CFD Simulation of Partially Premixed Piloted CH4/AIR Sandia Flame (D) Combustion and Emissinos
DOI:
https://doi.org/10.20998/2078-774X.2016.10.18Анотація
In this study, a numerical simulation of a piloted CH4/air (Sandia flame D) model, for partially-premixed combustion, with varying levels of O2/N2 by volume, is presented. The turbulence and combustion are modeled by the standard k–ε and burning velocity model(BVM) which also called turbulent flame closure (TFC) model which is used with laminar flamelet to give detailed chemistry. The main purpose this study is to predict the effect of the O2 and N2 volume percentage, on the turbulent flame characteristics and formation of harmful substances and emissions. Computations were achieved by the ANSYS CFX..Посилання
Meadows, J. (2013), Validation of the flamelet-generated manifolds combustion model for agasturbineengineapplicationsusingANSYS FLUENT, University turbine system research, San Antonio.
Guessab, A. (2011), “The Effects Turbulence Intensity on NOx Formation in Turbulent Diffusion Piloted Flame (SandiaFlameD)”, Recent Advances in Mechanical Engineering and Mechanics, pp. 144–150
Magnussen, B. and Hjertager, M. (1976), “Mathematical modeling of turbulent combustion with special emphasis ofsootformation and combustion”, Sixteenth Symposium (International) on Combustion, Pittsburgh, PA, 1976, pp. 719–729.
Pope, S. (1985), “PDF methods for turbulent reactive flows”, Progress in Energy Combustion and Science, vol. 11, pp. 119–192.
Bilger, R. (1993), “Conditional moment closure for turbulent reacting flow”, Physics of Fluids, vol. A5, pp. 436–444.
Peters, N. (2000) Turbulent Combustion, Cambridge University Press, UK, 2000
Zeldovich, Y. (1946), “The oxidation of nitrogen in combustion explosions,” Acta Physicochim. URSS 21, 577.
Piotr, S. (2006) “Flame front characteristics of turbulent lean premixed methane/air flames at high-pressure”, Ph.D.Thesis,Swiss federal institute of technology, Zurich, Swiss.
ANSYS CFX-Solver Theory Guide (2015) ANSYS, Inc. United states.
Jiang, B (2006), “Study on NOx Formation in CH4/Air Jet Combustion”, Chinese J. Chem. Eng., vol 14(6)-2006, pp. 723–728
Barlow, R. (1998), “Effects of turbulence on species mass fractions in methane/air jet flames”, Proc. Combust. Inst.27,1087–1095.
