Probability Density Function (PDF) simulation of turbulent reactive gas-solid flow in a riser
- Author
- SuryaNarayana Prasad Vegendla (UGent) , Geraldine Heynderickx (UGent) and Guy Marin (UGent)
- Organization
- Abstract
- A hybrid Lagrangian-Eulerian methodology is developed for the numerical simulation of turbulent reactive gas-solid flow. The SO2-NOx Adsorption Process (SNAP) in a riser reactor with dilute gas-solid flow is taken as a test case. A three-dimensional time-dependent simulation is performed. By using the transported composition PDF method [1], modeling of the mean chemical source term and mass transfer terms in the gas-solid flow model equations is no longer needed. A notional particle-based Monte-Carlo algorithm is used to solve the transported composition PDF equations. A Finite-Volume technique is used to calculate the hydrodynamic fields from the Reynolds Averaged Navier Stokes (RANS) equations combined with the k-epsilon turbulence model for the gas phase and the Kinetic Theory of Granular Flow (KTGF) for the solid phase [2]. The newly developed hybrid solution technique is tested with the SNAP chemistry that has a total of 13 scalars (i.e., 5 gas phase components and 8 solid phase species) for which the composition fields of the reactive species are calculated. A good agreement between simulated and experimental gas-outlet composition of a demonstration unit is obtained.
- Keywords
- Density, Adsorption, Gas-solid reactions, Mixing, Particle tracking, Riser, SIMULTANEOUS ADSORPTION, CFD SIMULATION, 2-PHASE FLOWS, REACTORS, SO2-NOX, MODEL, SORBENT
Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-785977
- Chicago
- Vegendla, SuryaNarayana Prasad, Geraldine Heynderickx, and Guy Marin. 2009. “Probability Density Function (PDF) Simulation of Turbulent Reactive Gas-solid Flow in a Riser.” Chemical Engineering & Technology 32 (3): 492–500.
- APA
- Vegendla, S. P., Heynderickx, G., & Marin, G. (2009). Probability Density Function (PDF) simulation of turbulent reactive gas-solid flow in a riser. CHEMICAL ENGINEERING & TECHNOLOGY, 32(3), 492–500.
- Vancouver
- 1.Vegendla SP, Heynderickx G, Marin G. Probability Density Function (PDF) simulation of turbulent reactive gas-solid flow in a riser. CHEMICAL ENGINEERING & TECHNOLOGY. 2009;32(3):492–500.
- MLA
- Vegendla, SuryaNarayana Prasad, Geraldine Heynderickx, and Guy Marin. “Probability Density Function (PDF) Simulation of Turbulent Reactive Gas-solid Flow in a Riser.” CHEMICAL ENGINEERING & TECHNOLOGY 32.3 (2009): 492–500. Print.
@article{785977, abstract = {A hybrid Lagrangian-Eulerian methodology is developed for the numerical simulation of turbulent reactive gas-solid flow. The SO2-NOx Adsorption Process (SNAP) in a riser reactor with dilute gas-solid flow is taken as a test case. A three-dimensional time-dependent simulation is performed. By using the transported composition PDF method [1], modeling of the mean chemical source term and mass transfer terms in the gas-solid flow model equations is no longer needed. A notional particle-based Monte-Carlo algorithm is used to solve the transported composition PDF equations. A Finite-Volume technique is used to calculate the hydrodynamic fields from the Reynolds Averaged Navier Stokes (RANS) equations combined with the k-epsilon turbulence model for the gas phase and the Kinetic Theory of Granular Flow (KTGF) for the solid phase [2]. The newly developed hybrid solution technique is tested with the SNAP chemistry that has a total of 13 scalars (i.e., 5 gas phase components and 8 solid phase species) for which the composition fields of the reactive species are calculated. A good agreement between simulated and experimental gas-outlet composition of a demonstration unit is obtained.}, author = {Vegendla, SuryaNarayana Prasad and Heynderickx, Geraldine and Marin, Guy}, issn = {0930-7516}, journal = {CHEMICAL ENGINEERING \& TECHNOLOGY}, keyword = {Density,Adsorption,Gas-solid reactions,Mixing,Particle tracking,Riser,SIMULTANEOUS ADSORPTION,CFD SIMULATION,2-PHASE FLOWS,REACTORS,SO2-NOX,MODEL,SORBENT}, language = {eng}, number = {3}, pages = {492--500}, title = {Probability Density Function (PDF) simulation of turbulent reactive gas-solid flow in a riser}, url = {http://dx.doi.org/10.1002/ceat.200800553}, volume = {32}, year = {2009}, }
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