In an ice-making plant, water at 0°C is frozen at atmospheric pressure by evaporating saturated R-134a liquid

Question:

In an ice-making plant, water at 0°C is frozen at atmospheric pressure by evaporating saturated R-134a liquid at -16°C. The refrigerant leaves this evaporator as a saturated vapor, and the plant is sized to produce ice at 0°C at a rate of 2500 kg/h. Determine the rate of entropy generation in this plant.