US Army course - Refrigeration and Air Conditioning I _Fundamentals_ OD1747-SinHojasEnBlanco.pdf

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SUBCOURSE

OD1747

EDITION

REFRIGERATION AND

AIR CONDITIONING I

REFRIGERATION AND AIR CONDITIONING I

(Fundamentals)

Subcourse OD1747

Edition A

United States Army Combined Arms Support Command

Fort Lee, VA 23801-1809

10 Credit Hours

INTRODUCTION

This subcourse is the first of four subcourses devoted to basic instruction in refrigeration and air conditioning.

This subcourse explains the fundamentals of electricity and their application in the refrigeration process. It

discusses circuits, motors, and troubleshooting. This is followed by a discussion of fundamentals and the maintenance of

the gasoline engine. The theory of refrigeration is also explained based on the characteristics of refrigerants.

Unless otherwise stated, whenever the masculine gender is used, both men and women are included.

INTRODUCTION

WITHIN THE LAST 20 years refrigeration has become a vital part of American economy. Not only does nearly every

household have its own private machine for the manufacture of ice and cold, but the vast industry of transporting, storing,

and selling fresh foods would collapse overnight without the facilities to preserve fruits, meats, and vegetables. Furthermore,

many amazing therapies of medical science depend upon refrigeration.

All over the world the Army maintains bases equipped with the latest war materiel for keeping the peace or for

defending our country. The men who man these bases must have suitable working conditions, proper food, and the best

hospital treatment possible. In accomplishing these tasks, the Army makes use of every phase of refrigeration.

Consequently, it must have men who will make a career of installing and maintaining the many refrigeration units it owns.

This course is offered to personnel who wish to improve their knowledge of the science of refrigeration. This

memorandum explains the fundamental reactions which make up the process of present-day refrigeration. It should help

the man who is interested in increasing his knowledge of refrigeration. Review exercises are at the end of each chapter.

ACKNOWLEDGMENT

Grateful acknowledgement is made to Allied Chemical Corporation; E. I. du Pont

Nemours and Company, Inc., and the American Society of Heating, Refrigeration, and

Air Conditioning Engineers for permission to use illustrations from their publications.