Liquid-Cooled Battery Energy Storage System
Application ID: 119321
High-power battery energy storage systems (BESS) are often equipped with liquid-cooling systems to remove the heat generated by the batteries during operation. This tutorial demonstrates how to define and solve a high-fidelity model of a liquid-cooled BESS pack which consists of 8 battery modules, each consisting of 56 cells (14S4p).
The electrochemistry is modeled using the Battery Pack interface, which formulates the electrochemistry from battery data and automatically adds a heat source in the Heat Transfer in Solids and Fluids interface. The fluid flow in the cooling channels is modeled using the Turbulent Flow, Algebraic yPlus interface, which is coupled to the heat transfer interface with the Nonisothermal Flow coupling. The flow and heat transfer in the inlet and outlet pipes for the coolant is modeled with the Pipe Flow and Heat Transfer in Pipes interfaces.
This application example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
- COMSOL Multiphysics® and
- Battery Design Module and
- CAD Import Module and
- Pipe Flow Module and
- either the CFD Module, or Heat Transfer Module
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.