Heat: Transport and Boundary Conditions

This lecture covers the physical models for micro and nanosystems, focusing on heat transport mechanisms such as conduction, convection, and radiation. The instructor explains the concepts of thermal conductivity, heat transfer through different materials, and boundary conditions for heat exchange. Various examples and equations are provided to illustrate these principles, including Fourier's law and energy conservation. Additionally, the lecture discusses the importance of boundary conditions in heat transfer problems, such as controlled temperature, symmetry planes, insulated walls, and heat transfer by convection and radiation.