A vapor compression refrigerating cycle uses refrigerant 22 has the following data. Temperature at evaporator is at -1°c and the pressure at the condenser is at 1535.5 KPa find: A. Refrigerating effect in kj/kg. B. Work of the compressor in kj/kg. C. COP, D. Heat rejected in kj/kg For a 1 ton refrigerating capacity determine E. Mass flow rate. F. Volume flow rate. g. Actual work of the compressor in kW H. Actual heat rejected in kW

A vapor compression refrigerating cycle uses refrigerant 22 has the following data. Temperature at evaporator is at -1°c and the pressure at the condenser is at 1535.5 KPa find: A. Refrigerating effect in kj/kg. B. Work of the compressor in kj/kg. C. COP, D. Heat rejected in kj/kg For a 1 ton refrigerating capacity determine E. Mass flow rate. F. Volume flow rate. g. Actual work of the compressor in kW H. Actual heat rejected in kW

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

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 4RQ: A typical temperature relationship between a high-efficiency condenser and the ambient temperature...

See similar textbooks

Similar questions

Four methods for controlling head pressure in an air-cooled condenser are ______, ______, _______, and
A typical temperature relationship between a high-efficiency condenser and the ambient temperature is A. 10F. B. 20F. C. 30F. D. 40F.
Three advantages of unitary, stand-alone refrigeration modules in supermarket refrigeration are ______and _______.
What can the service technician do to keep the refrigeration system operating at peak efficiency?
PLease answer with clean solution. Thanks A refrigeration system using refrigerant 12 is to have a refrigerating capacity of 80 kW. The cycle is a standard vapor-compression cycle in which the evaporating temperature is -15°C and the condensing temperature 30°C. Determine the volume flow of refrigerant measured in liters per second at the inlet to the compressor.
Q.2: A refrigeration system using refrigerant 22 is to have a refrigerating capacity of 80 kW. The cycle is a standard vapor-compression cycle in which the evaporating temperature 42°C. -8°C and the condensing temperature (a) Determine the volume flow of refrigerant measured in cubic is meters inlet at the to the compressor. second per (b) Calculate the power required by the compressor. (c) At the entrance to the evaporator what is the fraction of vapor in the mixture.
1- Consider two vapor compression refrigeration cycles .The refrigerant enters the hrottling valve as a saturated liquid at.30°C in one cycle and as subcooled liquid at 30°C n the öther one. Tlhe evaporátor pressure for both cycles is the same .Which cycle do you jink will have a higher COP ?
In simple and clear explanation. What is polygeneration system in refrigeration systems?
r, 18. How many tons of refrigeration effect can be obtained from a window air conditioner rated at 18,000 Btu/hr.?
Refrigerant 134a is used in a cooling system operating according to the ideal cooling cycle with vapor compression for cooling the cold storage in the milk processing plant. The flow rate of the refrigerant is 0.10 kg/s. The condenser and evaporator pressures are 1000 kPa and 600 kPa, respectively. a) Calculate the cooling capacity as (kW). b) Calculate the volumetric flow rate of the refrigerant at the compressor inlet. c) Calculate the efficiency coefficient of the cooling system.
A refrigeration system using refrigerant 22 is to have a refrigerating capacity of 80 kW. The evaporating temperaturc is -10°C and the condensing temperature is 42°C, determine the volume flow rate of refrigerant at inlet to the compressor. A. 35 L/s C. 25 L/s D. 55 L/s B. 45 L/s
b. A refrigerating system using Freon-12 has an evaporator saturation temperature of - 25°C and a condenser saturation temperature of 35°C. The vapor is dry saturated at entry to the compressor and has a temperature of 65°C after compression to the condenser pressure. There is no undercooling of the liquid in the condenser. i. Calculate the input power required by the compressor per kW of refrigeration. ii. Calculate the COPRef of the refrigerating system. ii. Show the operating cycle of the refrigerating system on a T-s diagram.