(Solved): Data for steady state operation of a vapor-compression refrigeration cycle with Refrigerant \( 134 ...

Data for steady state operation of a vapor-compression refrigeration cycle with Refrigerant \( 134 \mathrm{a} \) as the working fluid are given in the table below. The states are numbered as in Fig. 10.3. The refrigeration capacity is \( 4.6 \) tons. Ignoring heat transfer between the compressor and its surroundings, sketch the \( T-s \) diagram of the cycle and determine (a) the mass flow rate of the refrigerant, in \( \mathrm{kg} / \mathrm{min} \). (b) the isentropic compressor efficiency. (c) the coefficient of performance. Let \( T_{0}=21^{\circ} \mathrm{C}, p_{0}=1 \mathrm{bar} \).