scope:

PREFACE

Principles of Heating, Ventilating, and Air Conditioning, a textbook based on the 2005 ASHRAE Handbook-Fundamentals, should provide an attractive text for air-conditioning courses at engineering colleges and technical institutes. The text has been developed to give broad and current coverage of the heating, ventilation, and air-conditioning field when combined with the 2005 ASHRAE Handbook-Fundamentals.

The book should prove most suitable as a textbook and subsequent reference book for (a) undergraduate engineering courses in the general field of HVAC, (b) similar courses at technical institutes, (c) continuing education and refresher short courses for engineers, and (d) adult education courses for non-engineers. It contains more material than can normally be covered in a one-semester course. However, several different single-semester or shorter courses can be easily planned by merely eliminating the chapters and/or parts that are least applicable to the objectives of the particular course. This text will also readily aid in self-instruction of the 2005 ASHRAE Handbook-Fundamentals by engineers wishing to develop their competence in the HVAC&R field.

Although numerous references are made to the other ASHRAE Handbook volumes, sufficient material has been included from these to make this text complete enough for various courses in the HVAC&R field. The material covered for various audiences in regular university courses, technical institute courses, and short courses can, and will, vary greatly. The supplement needed to be complete to satisfy all of these anticipated uses and needs. Toward this end, the following major sections are included.

Part I General Concepts, Chapters 1-10

Part II Air-Conditioning Systems, Chapters 11-16

Part III HVAC&R Equipment, Chapters 17-19

Although the 2005 ASHRAE Handbook-Fundamentals is published in an SI edition, which uses international units, and an inch-pound (I-P) edition, this single version of Principles of Heating, Ventilating, and Air Conditioning is designed to serve both the I-P and SI editions of Fundamentals. For the most part, the sample tables and figures are taken from the I-P edition, but illustrative and home problems are provided in both systems of units. A set of appropriate SI tables and figures follows each chapter.

There are four significant changes in this edition of Principles of Heating, Ventilating, and Air- Conditioning. The first is the complete replacement of the CLTD/SCL/CLF method of design cooling load calculation with the new ASHRAE Radiant Time Series methodology with enhanced treatment of RTS procedures for nonresidential cooling and heating loads. The second is an essentially new chapter 6 on residential cooling and heating loads. The third change in this edition is the inclusion of discussions on sustainability and "green building" design. Finally, the fourth change is the inclusion of the new ventilation air procedure from ANSI/ASHRAE Standard 62.1-2004 in chapter 5.

A particular point of confusion must be pointed out. Because this book was developed to be used with the ASHRAE Fundamentals handbook volume, a number of tables and figures have been reproduced in the original form, complete with references to material elsewhere in Fundamentals (not in this book). Thus, if the subheading in the table or figure indicates that it is a Fundamentals table or figure, then all references to other locations, equations, tables, etc., refer to those in Fundamentals, not in Principles.