Answers 2 The twostage cascade refrigeration system shown be

Answers:

2. The two-stage cascade refrigeration system shown below is used to maintain a room at a temperature of-160oF. Freon 503 is used in the low temperature cycle (denoted as cycle II), and Freon 22 is used in the high temperature cycle (denoted as cycle l) Compresso Compresso 6 vaporator Condenser Expansion alve Valve Cooling Water Fig. 1 Fig. 2 Fig 3 The working temperatures of the evaporator and condenser are -180F, and 100 °F, respectively. The temperature at the entrance of the expansion valve in cycle II is-30 °F, and the temperature at the exit of the expansion valve in cycle i is-50oF. Assuming the processes in the compressors to be reversible and adiabatic, if the lift is 28,000 BTU/hr, compute: a. b. c. The compressor HP for cycle I The compressor HP for cycle ll Ratio of flow rates in cycle I/cycle lI

Solution

Solution seems correct what is the problem with it ?

Let me so i can help.

Comment what is the problem with the solution and i will rectify it