Conjugate Heat Transfer - Temperature Distribution Problems

Project Support
1

Hello

I am working on the temperature distribution on solar panel with fin as cooling system under a forced air convection. I had a problem with my post-result because the temperature on a solar panel seems to be weird. I think, my simulation set up might be a problem.

Here is my simulation set up details;
Inlet Velocity = 0.5m/s
Ambient Temperature = 30c
Heat flux = 50 W (power sources (panel))

can you help me to figure out the problems within my simulation set up.
Here is the link for my project: https://www.simscale.com/workbench/?pid=2194478132136011282&rru=38843146-c546-4dc8-b8f6-7c445f8a3186&ci=e41db438-5bd0-4a06-b204-54c9d8000dce&ct=SOLUTION_FIELD&mt=SIMULATION_RESULT

2

Hi there! Can you also add the images you wish to recreate? :slight_smile:

Cheers!

3

This is my solar panel temperature distribution

Screenshot 2020-12-14 at 6.52.59 PM
Screenshot 2020-12-14 at 6.52.59 PM1720×1408 226 KB

And i wish to do it this way below.

Screenshot 2020-12-14 at 6.51.50 PM
Screenshot 2020-12-14 at 6.51.50 PM2200×732 186 KB

4

Thank you can you also provide the reference paper? Also, what is the temperature of the air that enters the model in the reference project?

6

the references velocity inlet is 0.5 m/s with ambient temperature range from 26.8c, heat flux of 600 W/m2.
Here is the references paper https://www.researchgate.net/publication/331329139_Study_on_the_Cooling_Effect_of_Attached_Fins_on_PV_Using_CFD_Simulation

In my simulation, i am kinda concern with the panel heat flux, i dont really sure about the set up regarding the panel heat.

1 Like
7

Hi again, I took a quick look at the document you sent. It seems that the images above that you want to recreate are the results without cooling ( this means it is a design different than yours , without fins).
I made some changes to get closer to the test case you want to recreate here:

  1. I set the ambient temperature at 26.85 like in the paper (from 0 degrees)
  2. I deleted the silicon part and replaced the source with a heat flux wall boundary condition at the top surface with a value of 600 W/m^2 as the paper indicates

What about the fluid properties? Did you use the same as in the paper?

8

ahh i see, i think i found the problem, because i did not set the heat flux wall before. Thankyou for your help

1 Like