SPPU
TE Mechanical (2015 Course)
Subject: Refrigeration & Air Conditioning
Unit V: Air Conditioning Systems
Study Material
Unit V Part I: Air Conditioning Systems
Working of Summer Air Conditioning Systems
Winter Air Conditioning Systems and All Year Round
Air Conditioning Systems
All Air System, All Water System, Air Water
System, Variable Refrigerant Flow (VRF) and Variable Air Volume (VAV) Systems,
Unitary and Central Air Conditioning
Unit V Part II: Components of refrigeration and air conditioning systems
Working of Reciprocating Compressors (@ 21:22)
Working of Screw and Scroll Compressors
Working of Air Cooled, Water Cooled and
Evaporative Condensers
Working of DX, Flooded Type Evaporators
Forced Feed Evaporators
Expansion devices –Capillary tube, Thermostatic Expansion Valve (TXV or TEV), Electronic Expansion Valve
(EXV or EEV)
Operating and Safety Controls
Note
1: For more information, you may also watch other available NPTEL lectures for
the subject.
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