(3) A manufacturing company is intending to use its water cooled condenser for its proposed cold storage room. The name plate of the condenser gives the following specifications:
\begin{tabular}{ll}
refrigerant & ammonia \\
condenser water inlet & \( 30^{\circ} \mathrm{C} \) \\
condenser water outlet & \( 40^{\circ} \mathrm{C} \) \\
condensing temperature & \( 35^{\circ} \mathrm{C} \) \\
refrigerant flow & \( 3.84 \mathrm{~kg} / \mathrm{min} \) \\
circulating water flow & \( 120 \mathrm{~kg} / \mathrm{min} \)
\end{tabular}
(a) If the company decided to purchase a new compressor and evaporator, find the tonnage of the system and the temperature in the evaporator, (b) what is the COP? (c) find the theoretical \( { }^{\mathrm{hp}} \) required.