QUESTION $3$

A standard vapour$-$compression cycle using refrigerant R$134$a as the working fluid

operates between the pressures of $140$ kPa $($evaporation$)$ and $800$ kPa

$($condensation$).$ If the mass flow rate of the refrigerant is $0\mathrm{.}05k\frac{g}{s},$

$3\mathrm{.}1$ Draw a p$-$h diagram of the cycle.

$3\mathrm{.}2$ Analyse the cycle by evaluating:

$($a$)$ the rate of heat removal from the refrigerated space,

$($b$)$ the power input to the compressor,

$($c$)$ the heat rejection rate in the condenser, and

$($d$)$ the coefficient of performance.

Note: Use only the p$-$h diagram supplied