Chem. Eng. Thermodynamics (TKK-2137) 14/15 Semester 3 Instructor: Rama Oktavian Office Hr.: M.13-15, Tu , W , Th , F

Refrigeration cycle Applications: 1.the manufacture of ice and the dehydration of gases 2.gas liquefaction 3.Air separation unit 4.Ammonia processing

Refrigeration cycle Refrigeration ≡ transfer of heat from a cold to hot temperature region Circulating fluid ≡ refrigerant

Refrigeration cycle Carnot refrigerator – reverse of Carnot engine

Refrigeration cycle Vapor compression cycle 1  2 A liquid evaporating at constant pressure 2  3 the actual compression process 3  4 condensation process at constant pressure 4  1 throttling process

Refrigeration cycle Vapor compression cycle configuration