Basics of Refrigeration and Air Conditioning

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1. Define the refrigeration as the process of transferring heat from one place to another. 2. Identify the major components of refrigeration and air- conditioning systems (Industrial, domestic, and automotive ) 3. Specify the characteristic properties of refrigerant substances. 4. Classify refrigeration and air-conditioning systems. 5. Compare mechanical and non-mechanical refrigeration systems. 6. Determine the capacity of a refrigeration system. 7. Deal with compressor as the heart part of mechanical refrigeration systems. 8. Distinguish the basic three types of compressors (reciprocating, rotary and centrifugal). 9. Handle the four methods of controlling compressor capacity. 10. Be familiar with the basic methods of defrosting evaporators. 11. Get acquainted with the common methods of cooling water for water-cooled condensers. 12. Master the techniques of charging and testing refrigeration and air-conditioning systems. 13. Operate the various types of metering devices involved in refrigeration and air-conditioning systems.