Principles of Heating, Ventilating, and Air Conditioning, Ninth Edition, is based on content from all four volumes of the ASHRAE Handbook, pulling heavily from the 2021 ASHRAE Handbook—Fundamentals. It contains the most current ASHRAE procedures and definitive yet easy-to-understand treatment of building HVAC systems, from basic principles through design and operation.
This book is suitable both as a textbook and as a reference book for undergraduate engineering courses in the field of heating, ventilating, and air-conditioning; for similar courses at technical and vocational schools; for continuing education and refresher short courses for engineers; and for adult education courses for professionals other than engineers, especially when combined with the ASHRAE Handbook.
Several significant changes have been made for this revised edition, including changes to chapter content and organization with the goal of ensuring the content is approachable and practical. For many chapters, a single example building is used to enhance consistency and further students’ understanding, and the removal of residential discussions and examples has given the book a more pointed focus on commercial calculations and applications.
Specific changes include the following, among many others: • The first chapter has been revised to provide not just history but also updated information regarding current trends and the possible future of the HVAC industry.
• The Thermodynamics and Psychrometrics chapter content has been reorganized, and additional materials on psychrometrics, including additional psychrometric charts covering low temperatures and higher elevations, have been included.
• The System Loads chapter reflects reorganization to better walk the user through the calculation process used by professionals.
• The Energy Estimating Methods chapter has been streamlined to better reflect the current processes used by today’s energy modelers and connects energy estimation with load calculations presented in the textbook.
• The Duct and Pipe Sizing chapter includes expanded information, tables, and charts used for hydronic pipe sizing with updated example problems, allowing for more thorough topic coverage.
• The Hydronic Heating and Cooling System Design chapter includes updated general content based on the latest design trends and requirements as well as expanded information on typical hydronic heating/cooling equipment and system types.
In addition, several entire chapters have been removed from the print book but will be available online. The online materials include information on the following topics:Additional Psychrometric Charts
Cogeneration and Heat Recovery Systems
Economic Analyses and Life-Cycle Costs
Heat Exchanger Equipment
Panel Heating and Cooling Systems
Radiant Times Series (RTS) Method
Systems Design Problems
Citation: ASHRAE Book
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