Transcription of Refrigeration and Air Conditioning
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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.
beings or animals or for the proper performance of some industrial or scientific process. The precise meaning of air conditioning can be given as the process of simultaneous control of temperature, humidity, cleanliness and air motion. In some applications, even the control of air pressure falls under the purview of air conditioning.
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