air conditioning principles and systems fourth edition pdf

This fourth edition of Air Conditioning Principles and Systems has been significantly revised. Reflecting recent developments and concerns in the industry, substantial material has been added on
indoor air quality, air pollution from combustion, and the new environmental requirements on refrigerants. Consistent with the overall philosophy of this text, the practical approach to these important issues will enable the reader to effectively address them in the workplace.

Use of the Internet for air conditioning work is a major component of this fourth edition. Many
Websites of equipment manufacturers are listed. Problems are assigned that make use of these Web
sites for equipment performance, selection, and specifications, and to ask and receive answers to
technical questions. Web sites of HVAC design software providers are also listed.

These offer heating and cooling load calculations, duct and pipe sizing, psychrqmetrics, and energy analysis. Problems are also as~igned in these areas. Use of design software often entails a fee and restrictions, of course. The Web sites and software listed in the text are only a small sample of those available, and are not necessarily the only useful ones. A search will discover many more.

In addition to incorporating new material, many chapters have been considerably revised or amplified to enhance the learning process.This book is a fundamental text in heating, ventilation, and air conditioning (HVAC). It fills the need for a text that presents the fundamental principles and systems in a manner that is technically accurate, yet of practical use in the working world.
Today’s reality, which mandates time and cost effectiveness in HVAC work, dictates this practical
approach. Students in air conditioning and refrigeration courses in college and technical institute programs, and consulting engineers, contiactors, operating engineers, and service technicians will
find this text useful in their studies or as a reference.

The book is designed for a two-semester course. Supplemental work may be assigned if the
instructor wishes to expand on the suggested projects.The text begins by developing the fundamental principles ofair conditioning, followed by a description of equipment and systems. The text emphasizes the application of theory to both designing new systems and troubleshooting existing ones. This approach is enhanced by many_ illustrative examples and problems dealing with real situations.

An underlying theme throughout the book is energy utilization arid conservation. Energy codes
and standards are described, and each topic is examined from an energy conservation viewpoint, an
approach that is essential for all future work in the air conditioning field. A chapter is devoted to solar heating and cooling.

Following an overview of the scope of air conditioning, the text reviews physical principles. Heating and cooling load calculations are explained in a thorough yet understandable manner. The latest
methods (now required by most states) are used. The newly revised design weather data is included.
Load calculation forms are furnished to aid the student. The subject of psychrometries is presented in
considerable detail, recognizing that it is at the heart of understanding air conditioning processes.