(2) 437.2 kg/h of saturated water vapour at 120C are used to heat fruit juice (Cp = 4 kJ/kg/C) from 25C to 75C in a no-contact evaporator. At the end of the process the steam exits as condensate at 100C. During the process the fruit juice is concentrated from initial 15% total solids until a final water content of 40%. The concentration occurs since after having reached the T of 75C, fruit juice starts boiling and a fraction of water evaporates and leaves the system as saturated vapour at 75C. Also the concentrated juice exits at 75C. Calculate the flow rate of concentrated juice. Complicated exercise. Make a scheme of the entering and exiting streams and calculate the Cp of the concentrated juice (the new Cp is 3.44 kJ/kg). [128.8 kg/h] (3) Filled and sealed cans of juice are to be cooled from 93C to 32C prior to labeling. The weight of the can must be determined by actual weighting since the can specifications were not provided. An average can weight was found to be 170 g. The production rate is 300 cans/min. The heat capacity of the metal is found to be 0.46 kJ/kgC. The heat capacity of the juice is found to be 3.7 kJ/kgC. How much is the total cooling energy required if the net weight is 1.42 kg per can? [5.85-106 kJ/h]