McGraw-Hill Education. 1961. 750p. As the building and plant services—power, heating, air conditioning, refrigeration, prime movers, and others—have become more complex in the years since World War II, the engineer has become increasingly aware of the importance of well-designed instrumentation and control systems to ensure proper operation of these building and plant services. Yet, as a practical matter, few engineers other than instrumentation specialists have the opportunity in their day-to-day activity to fully explore the many applications of instrumentation and control systems to their engineering problems.This handbook has been prepared with the nonspecialist engineer in mind, although the specializing instrumentation engineer will find much material in each section of practical value to him. The material is presented in sufficient detail to provide a sound basis for system design, application, selection, and operation. It is intended to be a practical tool for all who are concerned with the mechanical services in institutional, commercial, and industrial buildings.Thus, this book will be useful to engineers who design and apply mechanical systems to buildings, plant engineers, architects, consulting engineers, maintenance and operating engineers, power and utility engineers, and others in allied fields.In its general arrangement the handbook gives emphasis to fundamentals as well as practical application. In this way it is felt that the material will be equally useful to the nonspecialist and specialist alike.After a study of fundamentals in the second section, the reader is provided with both qualitative and quantitative data on pressure, temperature, flow liquid level, pH, and conductivity—the variables most frequently measured and controlled in mechanical services for buildings. These are then tied together in a detailed discussion of systems for boiler and power plants, heating plants, mechanical drives, air-conditioning ventilation, and refrigeration, with considerable space devoted to actual cases.It is hoped that this handbook will contribute not only to a better understanding of the instruments and controls themselves, but to a fuller appreciation of what they can and cannot be expected to do when integrated with mechanical-service systems. In this way the hazard of misapplication may be avoided. It is quite true that no mechanical-service system can be better than the controls which cause it to function.A handbook, by its very nature, is a compilation of the knowledge of many people, organizations, and companies. And, while individual credits are acknowledged throughout this handbook, I wish to express special appreciation to such individuals as A. C. Wenzel of Republic Flow Meters Co., R. E. Sprenkle of Bailey Meter Co., J. E. Haines of Minneapolis-Honeywell Regulator Co., and D. M. Con-sidine of Hughes Aircraft Corp., and particularly to the Instrument Society of America and the American Society of Mechanical Engineers.Finally, I wish to acknowledge the invaluable help of Mrs. Katherine Mangione and of my wife Claire in the preparation and proofreading of the manuscript and index.
Чтобы скачать этот файл зарегистрируйтесь и/или войдите на сайт используя форму сверху.