Heating, Ventilating, and Air Conditioning Analysis and Design ANALYSIS and DESIGN Fourth Edition By Faye C. McQuiston and Jerald D. Parker

Heating, Ventilating, and Air Conditioning Analysis and Design

ANALYSIS and DESIGN

Fourth Edition

By

Faye C. McQuiston and Jerald D. Parker

 Preface
Advances in the areas of load calculations, indoor air quality (lAQ), and the requirements for environmentally acceptable refrigerants have prompted this revision of the third edition. The revisions reflect primarily the result of research sponsored by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) and the continued development of ASHRAE standards related to IAQ,comfort, and refrigerants. The original objective of this book, to produce.an up-to-date,convenient classroom teaching aid based on ASHRAE literature has not changed. It is intended for use by engineering students at the undergraduate and graduate level as well as practicing engineers. Mastery of the material should enable a person to effectively participate in the design of all types of HVAC systems. Basic courses in thermodynamics, heat transfer, fluid mechanics, and dynamics are desirable prerequisites. There is sufficient material for two-semester length courses with considerable latitude in course makeup. Although the book is intended to be primarily a teaching device, it should_also be useful as a reference and as an aid in studying new procedures.A number of revisions have been made based on suggestions from users of the previous editions.

Data and references have been updated throughout the text; however,in a few instances, useful material from older sources has been retained. New problems have been added, existing problems have been revised. and the problems have been rearranged to fit the new order of the material in the chapters. In all major areas there are problems that can be solved either manually or using available computer software. A solution manual is available from the publisher. Instructors should provide some examples and problems that emphasize their own design philosophies and the requirements of local geographical regions.Chapter 2, Air-Conditioning Systems, has been revised in an effqrt to improve understanding for the beginning student. Increased emphasis has been placed on the control of HVAC sy'stems by adding .more explanation of control theory and more detailed illustrations of.typical systems and controls.Chapter 4, Indoor Air Quality-Comfort and Health, has been completely revised to place greater emphasis on i.ndoor air quality and health and the use of ANSUASHRAE Standard 62. The sections dealing with comfort have also been updated to agree with the latest comfort standard, ASHRAE Standard 55.Chapter 8, The Cooling Lo!id, has undergone extensive revision base,d on the latest ASHRAE research in this area. The Transfer Function Method is more fully explained with sufficient data and examples to enhance understanding of this method. The new CLTD/CLF/SCL manual calculation method is also presented with adequate data and examples. Recent literature and software for load calculations is referenced.All the material related to energy calculations has been collected together in Chapter 9.Chapter 12, Fans and Building Air Distribution, has been revised to reference the new ASHRAE duct fitting database with a sampling of those data. Discussion of evolving duct design optimizing procedures is now included.Mass transfer and direct contact heat transfer material has been condensed and placed in Chapter 13.Chapter 15, Refrigeration, has been revised to include discussion related to ozone depletion, the safety and environmental effects of refrigerants, and the selection of replacement refrigerants.Instructors using this text are encouraged to involve students in the use of personal computers and the many programs available for use. The authors may be contacted for information related to procurement of software. Uncertainty exists as to when a complete conversion from English to the international system of units (Sl) will occur in the United States. However, engineers should be comfortable with both systems of units when they enter practice. Therefore, this book:continues to use a dual system of units, with some emphasis placed on the English system. Instructors should blend the two systems of units as they see fit.We are deeply indebted to ASHRAE for providing much sppport in the production of this book. Many companies and individuals, too numerous to list, contributed sugges tions, ideas, photographs, and commentary. Thank you every one.

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