(Solved): A refrigerator uses refrigerant-134a as the working fluid and operates on the vapor-compression ref ...

A refrigerator uses refrigerant-134a as the working fluid and operates on the vapor-compression refrigeration cycle. The evaporator and condenser pressures are $180\mathrm{kPa}$ and $1400\mathrm{kPa}$, respectively. The isentropic efficiency of the compressor is 88 percent. The refrigerant enters the compressor at a rate of $0.021\mathrm{kg}/\mathrm{s}$ superheated by $12.73^{?}\mathrm{C}$ and leaves the condenser subcooled by $4.4^{?}\mathrm{C}$. Determine the rate of heat removal from the refrigerated space, the rate of heat rejection from the refrigerant to the environment, the power input, and the COP if the cycle is operated on the ideal vapor-compression refrigeration cycle between the same pressure imits. (Take the required values from saturated refrigerant-134a tables.) The rate of heat removal from the refrigerated space is $\mathrm{kW}$. The rate of heat rejection from the refrigerant to the environment is $\mathrm{kW}$. The power input is $x\mathrm{kW}$. The COP is