I created a new simulation project called 'Battery Heat Transfer Analysis':
Battery CHT analysis
More of my public projects can be found here.
Good afternoon Sir
I loved your simulation it was very good
Myself Harsha and I am a graduate and I am trying to perform a CHT heat transfer analysis of battery cooling using conduction and convection .
My aim of the simulation is to transfer the heat generated in the battery through the copper enclosure surrounding the battery through conduction and then from copper enclosure to the fluid flow through convection so this was aim and the result I was expecting is temp distribution and rate of cooling can you please help me in determining the boundary conditions and how to set up the physical setup as I am new to cfd
Thank You sir
Hello Harsha,
did the simulation David ran make sense?
Is there anything I can help you with in your simulation objectives?
Do you have perchance any more information about the battery pack you are simulating? What battery cells are in place? What is the application of this battery pack?
Kind regards,
Arnaud
Hi Agirin
The objectives of my simulation are to find the temperature distribution of the 18650 Li-ion cells when an indirect liquid cooling method is deployed.
The battery pack I am simulating is created by myself for the college research purpose and I have done three sample battery packs out of which one is this battery pack.
The Li-ion batteries are placed into a copper casing, here the copper casing is nothing but a solid copper block with cylindrical cut-outs for batteries and smaller cylindrical cutouts for fluid flow so the batteries are placed in the cylindrical cutouts. as copper is a good conductor of heat, The heat generated in the batteries is dissipated into the copper casing. Now to cool the copper casing, cooling fluid is passed through the copper casing with smaller cylindrical cutouts, so the heat is carried away by the passing fluid and so to try and maintain the temperature of the cells is distributed uniformly. and for visual purposes, I had kept the upper and lower coolant reservoir.
The disadvantage of the ideas is using a solid copper is too expensive and too heavy
The application of this battery pack is to use it in electric vehicles.
This is the first time I am trying to do a CFD using the conjugate heat transfer method and I am not sure of the boundary conditions. The aim of the study is to decrease the temperature caused by the heat generated in the Li-ion batteries present in the battery pack at different discharge conditions 1C, 2C, and 3C.
The Li-ion battery used here is (Samsung INR 18650-25R) taken from a research paper.
Thanks & Regards
Harsha
Hi Harsha,
Thanks a lot for your reply. This seems very interesting indeed, I would also be curious to see how a physical prototype would perform!
How have you computed the power source for the battery cells? I see in your project that you have assigned 600W to the cells, bear in mind that this means that 600W is assigned to each of the cells, not altogether.
Could you share with me the discharge power for 1C,2C and 3C? Where do these values come from?
For the boundary conditions, it makes more sense to change the pressure outlet type from “Mean” to “Fixed” value ( to 0Pa).
Don’t hesitate to reach out on our chat if you have any other questions!
How is the inlet flow rate being computed? Is it calculated from a specific DeltaT inlet/oulet?
Kind regards,
Arnaud