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Energies 2015, 8(5), 4216-4236; doi:10.3390/en8054216

3-D CFD Modeling for Parametric Study in a 300-MWe One-Stage Oxygen-Blown Entrained-Bed Coal Gasifier

Department of Mechanical Engineering, Yonsei University, Seoul 120-749, Korea
Author to whom correspondence should be addressed.
Academic Editor: Mehrdad Massoudi
Received: 16 March 2015 / Revised: 30 April 2015 / Accepted: 5 May 2015 / Published: 11 May 2015
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Three-dimensional computational fluid dynamics (CFD) modeling of the gasification performance in a one-stage, entrained-bed coal gasifier (Shell Coal Gasification Process (SCGP) gasifier) was performed, for the first time. The parametric study used various O2/coal and steam/coal ratios, and the modeling used a commercial code, ANSYS FLUENT. CFD modeling was conducted by solving the steady-state Navier–Stokes and energy equations using the Eulerian–Lagrangian method. Gas-phase chemical reactions were solved with the Finite–Rate/Eddy–Dissipation Model. The CFD model was verified with actual operating data of Demkolec demo Integrated Gasification Combined Cycle (IGCC) facility in Netherlands that used Drayton coal. For Illinois #6 coal, the CFD model was compared with ASPEN Plus results reported in National Energy Technology Laboratory (NETL). For design coal used in the SCGP gasifier in Korea, carbon conversion efficiency, cold gas efficiency, temperature, and species mole fractions at the gasifier exit were calculated and the results were compared with those obtained by using ASPEN Plus-Kinetic. The optimal O2/coal and steam/coal ratios were 0.7 and 0.05, respectively, for the selected operating conditions. View Full-Text
Keywords: one-stage; entrained-bed coal gasifier; SCGP gasifier; CFD; ASPEN Plus one-stage; entrained-bed coal gasifier; SCGP gasifier; CFD; ASPEN Plus

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Park, S.S.; Jeong, H.J.; Hwang, J. 3-D CFD Modeling for Parametric Study in a 300-MWe One-Stage Oxygen-Blown Entrained-Bed Coal Gasifier. Energies 2015, 8, 4216-4236.

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