1. Date of download: 1/6/2018
Copyright © ASME. All rights reserved.
From: The Effect of Grid Resolution and Reaction Models in Simulation of a Fluidized Bed Gasifier Through Nonintrusive Uncertainty Quantification Techniques
J. Verif. Valid. Uncert. 2017;1(4): doi: /
Figure Legend:
Snap shots of the instantaneous voidage at two different time for three mesh resolution

2. Date of download: 1/6/2018
Copyright © ASME. All rights reserved.
From: The Effect of Grid Resolution and Reaction Models in Simulation of a Fluidized Bed Gasifier Through Nonintrusive Uncertainty Quantification Techniques
J. Verif. Valid. Uncert. 2017;1(4): doi: /
Figure Legend:
Time-averaged coal volume fraction (left) and its standard deviation (right) at three different grid resolutions

3. Date of download: 1/6/2018
Copyright © ASME. All rights reserved.
From: The Effect of Grid Resolution and Reaction Models in Simulation of a Fluidized Bed Gasifier Through Nonintrusive Uncertainty Quantification Techniques
J. Verif. Valid. Uncert. 2017;1(4): doi: /
Figure Legend:
Time-averaged sand volume fraction (left) and its standard deviation (right) at three different grid resolutions

4. Date of download: 1/6/2018
Copyright © ASME. All rights reserved.
From: The Effect of Grid Resolution and Reaction Models in Simulation of a Fluidized Bed Gasifier Through Nonintrusive Uncertainty Quantification Techniques
J. Verif. Valid. Uncert. 2017;1(4): doi: /
Figure Legend:
Frequency spectrum of CO mole fraction at three grid resolutions

5. Date of download: 1/6/2018
Copyright © ASME. All rights reserved.
From: The Effect of Grid Resolution and Reaction Models in Simulation of a Fluidized Bed Gasifier Through Nonintrusive Uncertainty Quantification Techniques
J. Verif. Valid. Uncert. 2017;1(4): doi: /
Figure Legend:
Instantaneous contours of voidage (a), steam mass fraction (b), CO2 mass fractions (c), steam gasification reaction rates (d), and CO2 gasification reaction rate (e)

6. Date of download: 1/6/2018
Copyright © ASME. All rights reserved.
From: The Effect of Grid Resolution and Reaction Models in Simulation of a Fluidized Bed Gasifier Through Nonintrusive Uncertainty Quantification Techniques
J. Verif. Valid. Uncert. 2017;1(4): doi: /
Figure Legend:
H2 behavior as a function of steam to oxygen ratio and multiplier to pre-exponent kinetic constant in gasification reaction model: (a) Ψ = 35, (b) Ψ = 18, and (c) Ψ = 9

7. Date of download: 1/6/2018
Copyright © ASME. All rights reserved.
From: The Effect of Grid Resolution and Reaction Models in Simulation of a Fluidized Bed Gasifier Through Nonintrusive Uncertainty Quantification Techniques
J. Verif. Valid. Uncert. 2017;1(4): doi: /
Figure Legend:
Posterior distribution of the multiplier to gasification rate, after Bayesian calibration

8. Date of download: 1/6/2018
Copyright © ASME. All rights reserved.
From: The Effect of Grid Resolution and Reaction Models in Simulation of a Fluidized Bed Gasifier Through Nonintrusive Uncertainty Quantification Techniques
J. Verif. Valid. Uncert. 2017;1(4): doi: /
Figure Legend:
CO mole fraction predictions for calibrated and uncalibrated gasification reaction rate

9. Date of download: 1/6/2018
Copyright © ASME. All rights reserved.
From: The Effect of Grid Resolution and Reaction Models in Simulation of a Fluidized Bed Gasifier Through Nonintrusive Uncertainty Quantification Techniques
J. Verif. Valid. Uncert. 2017;1(4): doi: /
Figure Legend:
Variance of the global sensitivity of A: gasification reaction model, B: CO oxidation model, C: water gas shift reaction model, D: char oxidation model, and E: bed temperature