A refrigerator operates between 120 kPa and 800 kPa in an ideal vapor compression cycle with R−134a as the refrigerant. The refrigerant enters the compressor as saturated vapor and leaves the condenser as saturated liquid. The mass flow rate of the refrigerant is 0.2kg/s. Properties for R−134a are as follows:Saturated R- 134aP(kPa)T(∘C)hf(kJ/kg)hs(kJ/kg)sf(kJ/kgK)sg(kJ/kgK)120−22.3222.52370.0930.9580031.3195.5267.30.3540.918Superheated R- 134aP(kPa)T(∘C)h(kJ/kg)s(kJ/kgK)80040276.450.95The power required for compressor in kW is

A refrigerator operates between 120 kPa and 800 kPa in an ideal vapor

1.	A refrigerator operates between 120 kPa and 800 kPa in an ideal vapor compression cycle with R−134a as the refrigerant. The refrigerant enters the compressor as saturated vapor and leaves the condenser as saturated liquid. The mass flow rate of the refrigerant is 0.2kg/s. Properties for R−134a are as follows:Saturated R- 134aP(kPa)T(∘C)hf(kJ/kg)hs(kJ/kg)sf(kJ/kgK)sg(kJ/kgK)120−22.3222.52370.0930.9580031.3195.5267.30.3540.918Superheated R- 134aP(kPa)T(∘C)h(kJ/kg)s(kJ/kgK)80040276.450.95The power required for compressor in kW is
Answer» A refrigerator operates between $120 k P a$ and $800 k P a$ in an ideal vapor compression cycle with $R - 134 a$ as the refrigerant. The refrigerant enters the compressor as saturated vapor and leaves the condenser as saturated liquid. The mass flow rate of the refrigerant is $0.2 k g / s .$ Properties for $R - 134 a$ are as follows: $\begin{matrix} Saturated R- 134a P (k P_{a}) & T (^{\circ} C) & h_{f} (k J / k g) & h_{s} (k J / k g) & s_{f} (k J / k g K) & s_{g} (k J / k g K) 120 & - 22.32 & 22.5 & 237 & 0.093 & 0.95 800 & 31.31 & 95.5 & 267.3 & 0.354 & 0.918 Superheated R- 134a P (k P_{a}) & T (^{\circ} C) & h (k J / k g) & s (k J / k g K) 800 & 40 & 276.45 & 0.95 \end{matrix}$ The power required for compressor in $k W$ is