A vapor$-$compression refrigeration system operates on the cycle shown below. The refrigerant is tetrafluoroethane. For the following

set of operating conditions, determine the circulation rate of the refrigerant, the heat$-$transfer rate in the condenser, the power

requirement, the coefficient of performance of the cycle, and the coefficient of performance of a Carnot refrigeration cycle operating

between the same temperature levels. Use the table containing the properties of saturated $1,1,1,2-$tetrafluoroethane $($R$134$A$)$ and

the $PH$ diagram for tetrafluoroethane $($HFC$-134$a$).($Include a minus sign if required.$)$

Vapor$-$compression refrigeration cycle.

Evaporation $T=-6C$

Condensation $T=26C$

$($compressor$)=0\mathrm{.}78$

Refrigeration rate $=500kJ*s^{-1}$

The circulation rate of the refrigerant is $kg*s^{-1}.$

The heat$-$transfer rate in the condenser is $kJ*s^{-1}.$

The power requirement is $,kW.$

TABLE $1($continued$)$

HFC$-134$a Saturation Properties$-$Temperature Table

$\backslash$table$[[\backslash$table$[[$TEMP$.],[C$