2021 ASHRAE Handbook: Fundamentals

The 2021 ASHRAE Handbook―Fundamentals covers basic principles and data used in the HVAC&R industry. Its more than 1,000 pages cover basic principles such as thermodynamics, psychrometrics, and heat transfer, and provide practical guidance on building envelope, indoor environmental quality, load calculations, duct and piping system design, refrigerants, energy resources, sustainability, a new chapter on climate change, and more. Climate data for over 9000 weather stations worldwide are provided as a separate download (approximately 700 MB zip file).