12 mx 10 5 The above refrigeration system uses R-12 as the refrigerant, determine: 1. Enthalpies at each point of the cycle 2. Total mass of refrigerant that circulates the system in kg/s 3. Total refrigerating capacity in TOR 4. Total compressor power in kW 5. Heat rejected in kW 6. Coefficient of Performance 7. Draw the P-h Diagram Note: Show your SYSTEM BALANCING. 6 7 O 40°C 3 Tin = 0°C mA=0.3 kg/s A -10°C mB=0.2 kg/s B -20°C mc=0.4 kg/s -20°C 9 11 13 mref R - 12 2

12 mx 10 5 The above refrigeration system uses R-12 as the refrigerant, determine: 1. Enthalpies at each point of the cycle 2. Total mass of refrigerant that circulates the system in kg/s 3. Total refrigerating capacity in TOR 4. Total compressor power in kW 5. Heat rejected in kW 6. Coefficient of Performance 7. Draw the P-h Diagram Note: Show your SYSTEM BALANCING. 6 7 O 40°C 3 Tin = 0°C mA=0.3 kg/s A -10°C mB=0.2 kg/s B -20°C mc=0.4 kg/s -20°C 9 11 13 mref R - 12 2

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Please answer j, k, and l only
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Ideal vapor-compression refrigeration cycle functions at steady state. Working fluid is Refrigerant 134a. Saturated vapor enters compressor at 1.70 bar. Saturated liquid leaves condenser at 7 bar. Refrigerant has mass flow rate = 7.9 kg/min DETERMINE: 1. What is power of compressor in Watt? 2. What is coefficient of performance? 3. What is refrigerating capacity in tons?
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