1 / 14

Combusting and Gasification Using Discrete Phase Method

Combusting and Gasification Using Discrete Phase Method. Combustion Through a Chamber. BACKGROUND: Gasification and Coal Combustion. Ash Deposition. Slagging and Slag Disposal. Fouling Downstream. [McDaniel, 2002]. GOVERNING EQUATIONS. Gas Phase Equations. Turbulent Kinetic Energy.

elinor
Télécharger la présentation

Combusting and Gasification Using Discrete Phase Method

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Combusting and Gasification Using Discrete Phase Method Combustion Through a Chamber

  2. BACKGROUND: Gasification and Coal Combustion Ash Deposition Slagging and Slag Disposal Fouling Downstream [McDaniel, 2002]

  3. GOVERNING EQUATIONS Gas Phase Equations Turbulent Kinetic Energy Convection Generation Destruction Diffusion Dissipation

  4. GOVERNING EQUATIONS (Continue) Mass Diffusion Tensor Conservation of Energy Mass Rate Conservation of Species Molecular Rate of Destruction and Creation of Species

  5. Constitutive Equations Force Momentum Balance Heat Balance Surface Reactions

  6. FORMULATION OF PROBLEM USING FLUENT Schematic of Domain Boundary Conditions

  7. SOLUTION Temperature Profile Mass Fraction of H2O Mass Fraction of CO2 Mass Fraction of CO

  8. SOLUTION (CONTINUED) Particle Residence Time

  9. PARAMETRIC ANALYSIS Mole Fraction of Medium Volatile Coal at Selected Operating Temperatures as a Function of the Duct Length 1500 K Case

  10. PARAMETRIC ANALYSIS Mole Fraction of Medium Volatile Coal at Selected Operating Temperatures as a Function of the Duct Length 1000 K Case

  11. PARAMETRIC ANALYSIS Mole Fraction of Medium Volatile Coal at Selected Operating Temperatures as a Function of the Duct Length 2000 K Case

  12. VALIDATION: Equilibrium Equations System of Equations Based On Stoichiometry Equilibrium Coefficient based on Partial Pressures

  13. VALIDATION CONTINUE Values for Fractions The ratio of CO to CO2 in Fluent was .247 Difference between Calculated and Fluent is 14%

  14. Reference 1. McDaniel, J., Tampa Electric Polk Power Station Integrated Combined Cycle Project Final Report. 2002, Tampa Electric Company: Tampa. p. 1-15-1-71.

More Related