Thursday 6 February 2020

Revised Notice regarding Class Test (Refrigeration and Air Conditioning -2161908) VI th SEM

All the the Students of Mechanical 6th Semester are hereby informed to appear in the class test of Refrigeration and Air conditioning (2161908) on 12/02/2019 from 11  A.M. to 12 A.M. in their respective class rooms.
Syllabus.
Introduction: Brief history and need of refrigeration and air conditioning, methods of producing cooling, ton of refrigeration, coefficient of performance, types and application of refrigeration and air condensing systems.
Refrigerants: Classification, nomenclature, desirable properties, secondary refrigerants, future industrial refrigerants
Air refrigeration: Reversed Carnot cycle and its limitation, Bell-Coleman cycle, aircraft refrigeration, working and analysis of Simple; Bootstrap; Reduced ambient and Regenerative air refrigeration systems.
Refrigeration system components: Types; construction; working; comparison and selection of compressors*; condensers; expansion devices; and evaporators, refrigeration piping accessories*, evacuation and charging of refrigerant*, properties and classification of thermal insulation