A heat exchanger is a piece of equipment that allows heat to be transformed from one stream to another while preventing the streams from mixing. Here, a heat exchanger has one stream containing an ice...

A heat exchanger is a piece of equipment that allows heat to be transformed from one stream to another while preventing the streams from mixing. Here, a heat exchanger has one stream containing an ice slurry entering at 0*C that exits as water (H2O) at 20*C. The second stream enters at 8.8 kg/min as hot ammonia (NH3) vapor at 12.2 atm and 144*C. The ammonia stream leaves the exchanger as a vapor at 12.2 atm and 34*C. Two heat capacities of ammonia are provided as: Cp (NH3 vapor, P=12.2 atm) = 8.0J/mol-K and Cp (NH3 liquid, P=12.2 atm) = 82.3 J/mol-K. A. Draw the enthalpy path for each component B. Find the mass flow rate (kg/s) of the water C. What percentage of the enthalpy change of the water is due to the phase change? D. The water enters as liquid water at 0*C instead of an ice slurry. Will the enthalpy change of the water stream increase, decrease, or stay the same?

Extracted text: Exercise 6.4.2: Ice ammonia heat exchanger. i About A heat exchanger is a piece of equipment that allows heat to be transferred from one stream to another while preventing the streams from mixing. Here, a heat exchanger has one stream containing an ice slurry entering at 0°C that exits as water (H20) at 20°C. The second stream enters at 8.8 kg/min as hot ammonia (NH3) vapor at 12.2 atm and 144°C. The ammonia stream leaves the exchanger as a vapor at 12.2 atm and 34°C. Two heat capacities of ammonia are provided as: C, (NH3, vapor, P=12.2 atm) = 8.0 J/mol-K and C, (NH3, liquid, P=12.2 atm) = 82.3 J/mol-K. (a) Draw the enthalpy path for each component. (b) Find the mass flow rate (kg/s) of the water. (c) What percentage of the enthalpy change of the water is due to the phase change? (d) The water enters as liquid water at 0°C instead of an ice slurry. Will the enthalpy change of the water stream increase, decrease, or stay the same? Feedback?