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).
Known today as the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), it went through mergers and name changes to become what it is today.
In 1894, it the organization was found by a group of engineering during a meeting in New York, USA and was known as the American Society of Heating and Ventilating Engineers (ASHVE).
In 1954, the name was changed to American Society of Heating and Air-Conditioning Engineers (ASHAE).
In 1959, ASHAE merged with American Society of Refrigerating Engineers (ASRE) to become ASHRAE.