In a heat exchanger, steam with a specific steam content of 0.92

 In a heat exchanger, steam with a specific steam content of 0.92 is condensed at a pressure of 0.08 bar. 50 tons / h the cooling water (heat capacity 4.18 kJ / (kg.K)) with the inlet temperature 20 o C is used for that process. The heat exchanger surface area is 135 m2 and it has a heat transfer coefficient, k = 860 W / (m2 .K). a) Calculate the transferred heat flow (heat output of the heat exchanger, P). (4p)

b) Calculate the outlet temperature of the cooling water. (2p)

c) How many kg of steam are condensed per hour? (5p)

d) Draw the temperature-length diagram and show all the temperatures on it and calculate logarithmic mean temperature. How do you analyze the results in the LMTD method? Explain it in text. (6p)