Chapter 4 of ASHRAE Handbook

Chapter 4 of the ASHRAE Handbook focuses on the principles of heat transfer in building systems, including conduction, convection, and radiation. It explains how heat moves through walls, windows, and HVAC components, influencing indoor comfort and energy efficiency. The chapter provides methods for evaluating thermal performance, designing effective insulation, and optimizing airflow and heat exchange. Understanding these concepts helps engineers develop systems that maintain comfortable indoor temperatures while reducing energy consumption and environmental impact. Overall, it introduces fundamental thermal physics applied to building design and operation.