Problem when simulating a battery pack with multiple parallel battery connection

- October 28, 2024 at 4:52 am
  
  phuocdinh2622
  Subscriber
  
  Hi everyone!
  Have a nice day!
  Now, I am simulating the 3S2P battery pack immersion cooling by the NTGK model. The figure of the battery pack is shown below.
  My problem is the temperature of the battery pack increased very slowly and at the end of the simulation was very low.
  Please help me with some suggestions to solve this problem.
  Thank you so much for your help!
- October 29, 2024 at 5:08 am
  
  Murari Iyengar
  Ansys Employee
  
  Hi, there are a few things you need to check starting with the Battery Model parameters. You also need to check the Material Properties including the thermal conductivity values which will have orthotropic conductivity for cylindrical cells. You can see 31.2. Using the MSMD-Based Battery Models for more information on the NTGK model. You can refer the NTGK model tutorial here: Chapter 32: Simulating a 1P3S Battery Pack Using the Battery Model
  - October 29, 2024 at 7:02 am
    
    phuocdinh2622
    Subscriber
    
    Thank you for response me. the thermal conductivity values and the Battery Model parameters are in the pictures below. Please check for me.
    The thermal conductivity values
    The Battery Model parameters