1. Chem. Eng. Thermodynamics (TKK-2137) 14/15 Semester 3 Instructor: Rama Oktavian Email: rama.oktavian86@gmail.com Office Hr.: M.13-15, Tu. 13-15, W. 13-15, Th. 13-15, F. 09-11

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

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

4. Refrigeration cycle Carnot refrigerator – reverse of Carnot engine

5. 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

6. Refrigeration cycle Vapor compression cycle configuration