(Solved): Problem 2 ( 45 points)-Consider the two stage refrigeration system shown. It is used for cooling tw ...

Problem 2 ( 45 points)-Consider the two stage refrigeration system shown. It is used for cooling two cold storage rooms each with a capacity of 200 tons, and evaporator temperatures of $0\mathrm{C}$ and $-12\mathrm{C}$ respectively. The condenser is operating at pressure of $1.2\mathrm{MPa}$. The efficienc A - Draw a T-s diagram of the cycle, and calculate: B - Mass flow rate of refrigerant in each room. C- Power of the compressors D-Capacity of the condenser $E$ - Coefficient of performance of the whole system. Note: Make reasonable estimates instead of interpolation for properties.