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 25^oC to a final temperature of 100^oC 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/kg

Question

TuteeHUB · Accepted Answer

91%

TuteeHUB · Answer

nSpecific heat capacity = 6 KJ/Kg K

TuteeHUB · Answer

95%

TuteeHUB · Answer

91%

TuteeHUB · Answer

68%

TuteeHUB · Answer

33%

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 25^oC to a final temperature of 100^oC 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/kg
A.	nSpecific heat capacity = 6 KJ/Kg K
B.	95%
C.	91%
D.	68%
E.	33%
Answer» C. 91%

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