Learning Forum

[Rachmad R]

Hello,

Now, I'm working on the gasifier project. But, I have a big question for the project. can the height or the diameter of gasifier affect the final result (like mole fraction or temperature) ? If it has an effect, what should be done? because I'm trying to see how the change in height or diameter influences

 

I've tried changing the height and diameter in Design Modeler menu. But, after it was simulated, nothing happened.

 

 

Thanks before, and I'm sorry for my bad English

[Karthik R]

How are you modeling this in Fluent? What models are you using and what are your boundary conditions? Please elaborate so we understand your question better.

Thanks.

Karthik

[Rachmad R]

I apologize because the question is not detailed.

To study, I tried to simulate a Fluidized Bed model with this journal reference:

https://www.researchgate.net/publication/276519429_3-D_CFD_Modeling_for_Parametric_Study_in_a_300-MWe_One-Stage_Oxygen-Blown_Entrained-Bed_Coal_Gasifier

 

For boundary condition, same as the following this photo:

[Rachmad R]

I apologize gave the wrong link, my reference link is this:

 

https://www.researchgate.net/publication/333943105_COMPUTATIONAL_FLUID_DYNAMICS_MODELING_AND_SIMULATION_OF_CIRCULATING_FLUIDIZED_BED_COAL_GASIFICATION

[DrAmine]

The computational grid and the supplied boundary conditions might affect the results: that is true. It also depends where you evaluating the results.

[Rachmad R]

Then, what should I do to fix it? I'm still a beginner in the operation of Ansys Fluent