Refrigeration and Air Conditioning

1 LECTURE NOTES ON Refrigeration and Air Conditioning III B. Tech II semester (JNTUH-R15) Dr. CH V K N S N Moorthy Professor Mr. A Somaiah Assistant Professor DEPARTMENT OF MECHANICAL ENGINEERING INSTITUTE OF AERONAUTICAL ENGINEERING (AUTONOMOUS) DUNDIGAL, HYDERABAD - 500 043 2 UNIT I INTRODUCTION TO Refrigeration 3 Introduction to Refrigeration : For specific applications, efficiencies of both living and non-living beings depend to a great extent on the physical environment. The nature keeps conditions in the physical environment in the dynamic state ranging from one extreme to the other. Temperature, humidity, pressure and air motion are some of the important environment variables that at any location keep changing throughout the year.

Refrigeration and air-conditioning is the subject which deals with the techniques to control the environments of the living and non-living subjects and thus provide them comforts to enable them to perform better and have longer lives. Refrigeration Literal meaning of refrigeration is the production of cold confinement relative to its surroundings.

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  Conditioning, Refrigeration, Air conditioning and refrigeration

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