A plant using R-134a is used to chill water for warship systems. The condenser is also cooled by water. Assume no undercooling in the condenser. The following data is to be used: Water flowrate through evaporator Water inlet temperature to evaporator Water outlet temperature from evaporator -10°C 50L/s 20°℃ 140L/s 350kPa 1100kPa Water flowrate through condenser Compressor suction pressure Compressor discharge pressure Compressor suction temperature Compressor discharge temperature Specific heat capacity of water Calculate: -10°℃ 60°C 4.2kJ/kgK a. Coefficient of Performance b. refrigerant cooling load c. refrigerant mass flowrate d. compressor power e. heat removed in condenser f. temperature change in condenser cooling water

A plant using R-134a is used to chill water for warship systems. The condenser is also cooled by water. Assume no undercooling in the condenser. The following data is to be used: Water flowrate through evaporator Water inlet temperature to evaporator Water outlet temperature from evaporator -10°C 50L/s 20°℃ 140L/s 350kPa 1100kPa Water flowrate through condenser Compressor suction pressure Compressor discharge pressure Compressor suction temperature Compressor discharge temperature Specific heat capacity of water Calculate: -10°℃ 60°C 4.2kJ/kgK a. Coefficient of Performance b. refrigerant cooling load c. refrigerant mass flowrate d. compressor power e. heat removed in condenser f. temperature change in condenser cooling water

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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A refrigeration system with a capacity of 15 tons of refrigeration, operates at 150 kPa in the evaporator, while the condenser is 1520 kPa. If refrigerant R-717 is saturated, calculate the theoretical power required to operate the compressor. Compressor Power Answer = kW.
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