OCR Text |
Show 5 experimental data. The following summarizes the points of the study: 1. The flame length in the combustion using high temperature fuel gas is determined by We , the time scale of the turbulent eddies. 2. The combustion using high temperature fuel gas is strongly depends upon turbulent diffusion. 3. The process design and the operations to control the degree of turbulence in a furnace are crucial to obtain the desired heat distribution in combustion, Nomenclature A : Empirical constant for the eddy dissipation model (=4.0) B : Empirical constant for the eddy dissipation model(=5.0) Mj : Molecular weight of species i Ry :Reactant for species i in reaction j k Turbulent kinetic energy m p :Mass fraction of any product species, P mR :Mass fraction of a particular reactant, R £ :Rate of dissipation of turblent kinetiv energy, k v ^Molar stoichiometric coefficient for species i in reaction j p :Density of gas References [l]B.F.Magnussen and B.H.Hjertager. .Technical report, 16th Symp.(lnt'l.)on Combustion Cambridge, MA, Aug. 15-20 1976 [2]FLUENT/UNS&RAMPANT 4.2 User's Guide, Volume 2 [3]D.B.Spalding. Technical report, 13th Symp. (Int'l.)on Combustion, The Combustion Inst, Salt Lake City, UT, Aug. 23-29 1970 |