Problem $3(25$ Points$)$

GIVEN:

In an actual refrigeration cycle using Refrigerant HFC$-134$a as the working fluid, the refrigerant flow rate is $0\mathrm{.}1k\frac{g}{s}.$ Saturated vapor enters the compressor at $1$ bar, and saturated liquid exits the condenser at a pressure of $10$ bar. The temperature at the compressor exit is $80C.$ Assume that the expansion valve is adiabatic. Analyze the problem using the attached $p-$h diagram or thermodynamic tables.

FIND:

A$.$ Draw a representative $T-$s diagram for the cycle. Label each principle state in accord with the schematic and energy$/$work if applicable.

B$.$ Determine the pressure and enthalpy at each principle state By using either $p-h$ diagram or thermodynamic tables. If you are using $p-$h diagram, you need to label each principle state on the $p-h$ diagram.

C$.$ Determine the compressor power input $kW.$

D$.$ Determine the isentropic compressor efficiency.

E$.$ Determine the refrigeration capacity $Q_{in}^{}[ton].$

F$.$ Calculate the Coefficient of Performance of the cycle.