Thermodynamics: Non-ideal vapor-compression cycle, absorption refrigeration cycle (38 of 51)

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0:00:39 - Reminder of vapor-compression refrigeration cycle devices
0:03:50 - Non-ideal vapor-compression refrigeration cycle
0:14:17 - Example: Non-ideal vapor compression refrigeration cycle
0:22:04 - Overview of absorption refrigeration cycle
0:44:28 - Preparation for midterm exam (summary of first third of course)

This lecture series was recorded live at Cal Poly Pomona during Spring 2018. The textbook is Cengel & Boles, "Thermodynamics: An Engineering Approach (8th edition)."
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Prof David Miller and Prof John Biddle are truly gifted!!!

emt
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7:00 @process 8 to 1:
Why does losing pressure cause the saturated fluid to increase temperature? (When state 1 was defined in the diagram, it was placed slightly above state 8)

joshuapancuelo
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Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at
0.14 MPa and -10°C at a rate of 0.12 kg/s, and it leaves at 0.7 MPa and 50°C. The
refrigerant is cooled in the condenser to 24°C and 0.65 MPa, and it is throttled to
0.15 MPa. show the cycle on a T-s diagram with respect to

saturation lines, and determine (a) the rate of heat removal from the refrigerated
space and the power input to the compressor, (b) the isentropic efficiency of the

-ahmedmohamedhassan