What is the Evaporator economy of the 1st effect if we evaporate 10kg/hr of water from a feed of 50kg/hr at a temperature of 25oC to a final temperature of 100oC in an hour in a triple effect forward feed evaporator which has steam supply of 25kg/hr? Given the concentration changes from a value of 0.3 to 0.55 in the 1st effect of the setup.Latent heat of vaporization of water = 2,260 kJ/kgSpecific heat capacity = 6 KJ/Kg K

What is the Evaporator economy of the 1st effect if we evaporate 10kg

1.	What is the Evaporator economy of the 1st effect if we evaporate 10kg/hr of water from a feed of 50kg/hr at a temperature of 25oC to a final temperature of 100oC in an hour in a triple effect forward feed evaporator which has steam supply of 25kg/hr? Given the concentration changes from a value of 0.3 to 0.55 in the 1st effect of the setup.Latent heat of vaporization of water = 2,260 kJ/kgSpecific heat capacity = 6 KJ/Kg K
A.	95%
B.	91%
C.	68%
D.	33%
Answer» C. 68%