Thermal Resistances & Bi Number

This lecture covers the concepts of thermal resistances, Bi number, and an introduction to thermal circuits. It explains conductive heat transfer, boundary conditions, heat diffusion equations, and assumptions for solving them. The lecture also delves into examples of heat diffusion, including planar walls and cylindrical pipes, and discusses thermal resistance in conduction, convection, and radiation. Furthermore, it explores the calculation of thermal resistances for different geometries and the concept of the overall heat transfer coefficient.