Book Description
Control Systems for Heating, Ventilating and Air Conditioning, Sixth Edition contains a comprehensive treatment of the system controls. This book was originally written to provide fundamentals of HVAC control to practitioners who were designing new control systems or maintaining existing control systems. Emphasis on fundamental control system principles along with the psychrometrics of air conditioning processes has remained a focus of the new edition. While control system technology has changed drastically over the years, the fundamentals of controlling heating and air conditioning systems have changed only modestly. Readers will find that fundamentals of existing control systems remain in this book so that those who need to maintain or troubleshoot systems that are twenty or thirty years old will be able to see what practitioners did during that time frame. In addition the ubiquitous application of digital control technology in very recent times is also described. Note that the fundamental control principles once implemented pneumatically are now being implemented in modern digital computer-soft now replaces hardware. Another change since the last addition is a new emphasis on controlling minimum fresh air for validation purposes. New techniques for doing this have been developed in response to ASHRAE Standard 62, Ventilation for Acceptable Indoor Air Quality," and these methods are included. Control Systems for Heating, Ventilating and Air Conditioning, Sixth Edition is complete and covers both hardware control systems and modern control technology. The material is presented without bias and without prejudice toward particular hardware or software. Readers with Engineering degree will be reminded of the psychrometric processes associated with heating and air conditioning as they learn of the various controls schemes used in the variety of heating and air conditioning system types they will encountered in the field. Maintenance technicians will also find the book useful because it describes various control hardware and control strategies that were used in the past and are prevalent in most existing heating and air conditioning systems. Designers of new systems will find the fundamentals described in this book to be a useful starting point, and they will also benefit from descriptions of new digital technologies and energy management systems. This technology is found in modern building HVAC system designs.
Table of Contents
Preface to the First Edition
Preface to the Fifth Edition
Ch. 1 Control Theory and Terminology 1
Ch. 2 Pneumatic Control Devices 13
Ch. 3 Electric and Electronic Control Devices 42
Ch. 4 Fluidic Control Devices 68
Ch. 5 Flow Control Devices 75
Ch. 6 Elementary Control Systems 93
Ch. 7 Complete Control Systems 135
Ch. 8 Electric Control Systems 200
Ch. 9 Special Control 221
Ch. 10 Digital and Supervisory Control Systems 231
Ch. 11 Psychrometrics 242
Ch. 12 Central Plant Pumping and Distribution Systems 255
Ch. 13 Retrofit of Existing Control Systems 265
Ch. 14 Dynamic Response and Tuning 280
Bibliography 289
Abbreviations Used in This Book 292
Symbols Used in This Book 293
Index 301
Download:
http://mihd.net/8bng47
