97/03048 Extinction of turbulent diffusion flames by Kolmogorov microscale turbulence
- Book ID
- 104282709
- Publisher
- Elsevier Science
- Year
- 1997
- Weight
- 202 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0140-6701
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โฆ Synopsis
The IEA (International Energy Agency) model was improved by introducing over-bed feeding and improving the distribution of volatile matter throughout the comhustor. This formed the modelling of fluidized-bed combustion of Yugoslavian coals. Nearly 50 test runs were used that were conducted over the past decade. The improved model can be used to predict combustion of Yugoslavian coals to lIO%, hut gas emissions predictions were somewhat less accurate.
๐ SIMILAR VOLUMES
The velocity-dissipation-composition probability density function (pdf) method is used to model a turbulent CO/H2/N2-air-piloted jet diffusion flame in the regime of extinction. The thermochemistry is modeled by a three-scalar simplified formulation obtained by the intrinsic low-dimensional manifold
The emission of soot and thermal radiation by free turbulent diffusion flames of CO, H 2, Cl-b,, C2H 6, Calls, C2H4, and C2H 2 was studied over a range spanning the transition from forced convection to natural convection (burner diameters 0.7-10.9 mm, buoyancy Richardson ratios Ri L ~ lrgpcx~L3/4Go