ESS Thermal Management study

Project Support
1

Hello

I want running conjugate heat transfer model to simulate the temperature distribution inside the energy storage system EV battery
Domain consists of 4 solid zones 3 modules & ESS box and 1 fluid zone air.

Goal of the Study:
The model is used to investigate the effect of adding thermal pads and fins on reducing heat from the ESS base.

What is a good way or best practice to simulate this?

Best regards,

Mars Chen

2

Hello!

Have you already checked out this tutorial? To some extent, it is similar to what you are trying to do.

Cheers

3

Hi Ricardo

Thanks, I have check Thermal Management Tutorial, but how to create the external volume to study?

Here is boundary conditions:

Inlet: Velocity = 10 and 30 km/h, temperature = 22 °C.
Outlet: Pressure-outlet Gauge pressure = 0.
Wind Tunnel: Wall with zero shear stress to eliminate the effect of wall on the flow behavior.
Modules 1 and 3: Constant temperature = 60 °C
Modules 2: Constant temperature = 65 °C
All walls between two different zones (here air and aluminum): Coupled thermal condition
External Walls: Convective heat transfer with free stream temperature = 22 °C. Heat transfer coefficient= 10 & 100 W/m2.K

Boundary Conditions-
Boundary Conditions-1222×466 63.7 KB

Thanks in advance
Mars

4

You could create both internal and/or external flow regions if needed: How to Create Flow Volume Extraction? | Knowledge Base | SimScale

PS: if you are solving for the external domain you won’t be able to assign these external wall boundary conditions that you mentioned. You either solve that with the external flow region or you don’t add the external flow region and model convection with a boundary condition.