Thermal Design of Battery Pack - II

This lesson covers the different modes of thermal management in batteries, focusing on the three main modes of heat transfer: conduction, convection, and radiation. It explains the concept of active and passive thermal management systems, their applications, and how they function. For instance, active systems use energy from the battery pack to manage heat, while passive systems do not draw any energy from the battery pack. The lesson also discusses various thermal management methods such as air cooling, liquid cooling, direct expansion refrigerant system, and hybrid systems. It further provides an illustrative example of how to select an appropriate thermal management method based on heat flux.

Video Highlights

00:17 - Heat transfer modes: conduction, convection, and radiation
01:20 - Discussion on active thermal systems
09:12 - Discussion on passive thermal management systems
12:12 - Discussion active thermal management methods
15:28 - How to select a thermal management method
17:22 - Example problem on the selection of a thermal management method

Key Takeaways

- Heat transfer in batteries occurs through conduction, convection, and radiation.
- Active thermal management systems use energy from the battery pack to manage heat, while passive systems do not.
- Air cooling, liquid cooling, direct expansion refrigerant system, and hybrid systems are some of the thermal management methods.
- The selection of an appropriate thermal management method depends on the heat flux.
- The lesson provides an illustrative example of selecting a thermal management method based on heat flux.