Vapour Compression Refrigeration Cycle Solved Problems Pdf

Superheated to state 6.

Vapour compression refrigeration cycle solved problems pdf. The mass flow rate of the refrigerant is 0 08 kg s. The evaporating temperature is 25 oc and condensing temperature 47 oc the refrigeration capacity is 8 tr and the compression is adiabatic reversible process. Two stage compression cycle with one evaporator and intercooler with water 51. The upper cycle uses r 134a as working fluid lower cycle uses r 22.

Refrigeration cycle is the basis of all refrigeration systems. Some basic refrigeration cycles are. Two stage compression cycle with one evaporator and intercooling with flash gas 53. If the mass flow rate in the upper cycle is 0 5 kg s determine a the mass flow rate through the.

Complex vapour compression refrigeration systems. In this system the working fluid is a vapor. From there the vapour refrigerant flows through a tube to the inlet of the compressor 1 to close the cycle. The refrigerant enters the compressor at 100c 1 4 bar and exits at 7 bar.

It readily evaporates and condenses or changes alternatively between the vapor and liquid phase without leaving the refrigerating plant. 1 executing carnot cycle requires a compressor that can handle two phases 2 also process 4 1 involves expansion of two phase flow in a turbine. The above figure shows the objectives of refrigerators and heat pumps. Understand about the vapour compression cycle describe the vapour compression refrigeration cycle and solve the problem on refrigeration system.

The isentropic compressor efficiency is 67. Refrigerant 134a is the working fluid in an ideal vapor compression refrigeration cycle that communicates thermally with a cold region at 0 c and a warm region at 26 c. In the lower cycle refrigerant condenses at 10 o c in the upper cycle refrigerant evaporates at 0 o c. Saturated vapor enters the compressor at 0 c and saturated liquid leaves the condenser at 26 c.

In this system the working fluid is a vapor. Vapour compression refrigeration cycle is the most widely used refrigeration system. The purpose of a refrigerator is the removal of heat called the cooling load from a low temperature medium. 1 condenser evapourat expansion valve compressor the secondary 3 2 4 5 6 pipe pipe 10 9 7 8 vapour compression refrigeration system the primary objective of the simulation is to determine the steady.

Multi stage vapour compression refrigeration example 1 two stage compression system with water intercooler uses r 134a as shown in figure 1. Refrigeration cycles the vapor compression refrigeration cycle is a common method for transferring heat from a low temperature to a high temperature. Two stage compression cycle with one evaporator and intercooler flash tank 55. 2 a vapor compression refrigeration system circulates refrigerant 134a at rate of 6 kg min.

The ideal vapor compression refrigeration cycle the vapor compression refrigeration is the most widely used cycle for refrigerators air conditioners and heat pumps.