Download It is very important notes for students and more Lecture notes Refrigeration and Air Conditioning in PDF only on Docsity! MECHANICAL ENGINEERING Curriculum & Evaluation Scheme V & VI semester Page 35 Subject Code: KME 601 Refrigeration & Air Conditioning L T P : 3 1 0 Credits: 4 Unit‐1 8 Hours Refrigeration: Introduction to refrigeration system, Methods of refrigeration, Unit of refrigeration, Refrigeration effect, Carnot refrigeration cycle, Refrigerator and Heat Pump, C.O.P. Air Refrigeration cycle: Open and closed air refrigeration cycles, Reversed air Carnot cycle, Bell Coleman or Reversed Joule air refrigeration cycle, Need of Aircraft refrigeration, Classification of aircraft refrigeration system. Boot strap refrigeration, Regenerative, Reduced ambient, Dry air rated temperature (DART). Unit‐2 8 Hours Vapour Compression System: Reversed vapour Carnot cycle, limitation of Reversed vapour Carnot cycle, Simple vapour compression cycle, Analysis of vapour compression cycle, Use of T‐S and P‐H charts, Effect of change in suction and discharge pressures on C.O.P, Effect of sub cooling of condensate & superheating of refrigerant vapour on C.O.P of the cycle, Actual vapour compression refrigeration cycle, Multistage System: Multistage vapour compression system requirement, Different configuration of multi pressure system, Removal of flash gas, Intercooling, Multi evaporator system, Cascade system. Unit‐3 8 Hours Vapour Absorption system; Working Principal of vapour absorption refrigeration system, Comparison between absorption & compression systems, Elementary idea of refrigerant absorbent mixtures, Temperature – concentration diagram & Enthalpy – concentration diagram , Adiabatic mixing of two streams, Ammonia – Water vapour absorption system, Lithium‐ Bromide water vapour absorption system, Comparison, Three fluid system. The students will be able to Blooms Taxonomy CO1 Understand the basics concepts of Refrigeration & Air‐Conditioning and its future prospects. K2 CO2 Explain the construction and working of various components in Refrigeration & Air‐Conditioning systems. K2 CO3 Understand the different types of RAC systems with their respective applications. K2 CO4 Apply the basic laws to the thermodynamic analysis of different processes involved in Refrigeration and Air‐Conditioning. K3 CO5 Apply the basic concepts to calculate the COP and other performance parameters for different RAC systems K3 CO6 Analyze the effects of performance parameters on COP. K4