Refrigeration and air-conditioning is a compulsory subject for The B Tech Mechanical engg. and other allied branches. It is offered in The final year of The degree program. It is also taught to diploma students. With The global problem of environment pollution, warming and Ozone layer depletion, The importance of This subject has increased manifold in The engg. Education The subject is also important from The point of view of job opportunities. Table of content1 - basic concepts of Thermodynamics - fundamentals of Refrigeration - air Refrigeration cycles4 - aircraft Refrigeration Systems5 - simple vapour compression Systems6 - multi-stage vapour compression Systems7 - vapour Absorption Refrigeration Systems8 - refrigerants9 - Refrigeration equipments10 - cryogenics11 - steam jet refrigeration12 - psychrometry13 - comfort air-conditioning14 - cooling and heating load estimation15 - Ducts Design16 - fans17 - applications of Refrigeration and air-conditioning.