QUESTION 53 An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid maintains a condenser at 800 kPa and the evaporator at -12 C. Determine this system’s COP and the amount of power required to service a 150 kW cooling load. Refer to Q5 file case 2. What is the coefficient of performance to 1 decimal place?

QUESTION 53 An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid maintains a condenser at 800 kPa and the evaporator at -12 C. Determine this system’s COP and the amount of power required to service a 150 kW cooling load. Refer to Q5 file case 2. What is the coefficient of performance to 1 decimal place?

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter10: System Charging

Section: Chapter Questions

Problem 16RQ: A technician takes the following readings on an R-404A refrigeration system: Head pressure = 205...

See similar textbooks

Similar questions

What are the approximate temperature ranges tor low-, medium-, and high-temperature refrigeration applications?
When a standard-efficiency air-cooled condenser is used, the condensing refrigerant will normally be higher in temperature than the entering air temperature.
Why is truck refrigeration designed to provide low- and medium-temperature refrigeration?
The defrost cycle in a domestic refrigerator may be terminated by two methods: ___and___.
A typical temperature relationship between a high-efficiency condenser and the ambient temperature is A. 10F. B. 20F. C. 30F. D. 40F.
How will oversizing the buffer tank on a water-to-water heat pump system affect the run time of the system?
The condensing pressure is 260 psig and the condenser outlet temperature is 108F for R-22. By how many degrees is the liquid subcooled in the condenser? A. 12F B. 42F C. 7F D. 14F
What are the two types of evaporators found in house-hold refrigerators?
Briefly explain what is meant by a subcritical refrigeration cycle, and list its four processes.
A technician takes the following readings on an R-404A refrigeration system: Head pressure = 205 psig Suction pressure = 30 psig Condenser outlet temperature = 80F Evaporator outlet temperature = 10F Using the pressure/temperature chart in Figure 10.25, find the condenser subcooling and evaporator superheat amounts.
What are mullion heaters?
If the evaporating pressure was 76 psig for R-22 and the compressor inlet temperature was 65F, what would be the total superheat entering the compressor? A. 11F B. 21F C. 10F D. 20F