FST USD Yogyakarta Termodinamika II TERMODINAMIKA II Semester
- Slides: 6
FST USD Yogyakarta Termodinamika II TERMODINAMIKA II Semester Genap TA 2007/2008
4 – Proses Pada Siklus Kompresi Uap Ideal Process 1 -2 Isentropic Compression Process, s=const. : Compressor, sat. vap superheat vapor Process 2 -3 P = const. Heat Rejection Process: Process Condenser, superheat vapor sat. liquid Process 3 -4 Throttling Process, h=const. : Expansion Valve, sat. liquid mixture FST USD Yogyakarta Process 4 -1 P = const. Heat Addition Process : Evaporator, Mixture sat. vapor Sketsa Alat Environment P 2 T QHH Q 2 2 Condenser 3 3 Expansion Valve Termodinamika II T-s Diagram Compressor QH P 1 Winin W 4 4 Evaporator Win 1 QLL Q Refrigerated Space s
P-h Diagram T-s Diagram T P-h Diagram P P 2 2 FST USD Yogyakarta Win QH 3 P 2 3 P 1 QH Win P 1 1 4 4 QL s Termodinamika II 2 h 4= h 3 QL 1 h 2 h
Dengan pemanasan dan pendinginan lanjut (superheated & subcooled) T-s Diagram T P 2 2 Win FST USD Yogyakarta P-h Diagram P QH 3 P 2 ∆T Subcooled P 1 QH 3 1 Win ∆TSup P 1 4 4 QL s Termodinamika II 2 QL 1 h h 4= h 3 h 1 h 2 Refrijeren masuk compressor pada keadaan superheated vapor dan masuk katup ekspansi pada keadaan subcooled liquid
Siklus. Kompresi Uap Aktual Termodinamika II FST USD Yogyakarta (Fig. 10 -7)
Termodinamika II FST USD Yogyakarta An Ordinary Household Refrigerator Ruangan Freezer dimana terjadi penyerapan kalor merupakan tempat evaporator. Koil di belakang refrigerator dimana kalor dibuang ke udara merupakan condenser.
