April 1, 2023 at 3:26 pmTejas PrajapatiSubscriber
Can some help me in CFD part in solid desiccant dehumidifier.
for selecting model conditions in k epsilon equation.
In this analysis relative humidity also used.
also how I selected porous media for material
April 4, 2023 at 1:07 pmNikhil NaraleAnsys Employee
I apologize, but I am having difficulty fully comprehending your question. However, if you are looking to model porous media, you can designate a specific zone/region as porous within the cell zone conditions. It is important to ensure that the appropriate values for parameters such as inertial resistance, viscous resistance and much more, are properly defined for the porous media.
April 4, 2023 at 1:18 pmTejas PrajapatiSubscriber
I can explain
I have only two data
- Inlet temperature 301.05 k
- Relative humidity
Here have a hexagonal shape pipe 125mm length
silica gel absorb the water vapour in air.
here I am used
model was k epsilon- RNG - standard wall treatment
Spicies transport on make mixture of water vapour + air
in spicies transport- volumetric on and inlet diffusion on
i don't know that right or wrong
please correct me
I objective was outlet temperature will be higher than inlet temperature and outlet RH will be decrease compared to inlet RH
REGENERATION TEMPERATURE- 328.15
pipe made of silica gel
April 10, 2023 at 3:06 pmTejas PrajapatiSubscriber
April 11, 2023 at 10:05 amRobAnsys Employee
If you want to absorb the vapour you'll need to either use a reaction on the gel surface (or porous media surface) or a sink (source) term. For the latter you need to account for heat release too.
You've got the basics but not the part that actually removes the vapour.
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