Which one of the following is not an assumption taken before applying enthalpy balance on the evaporator?

Flow of non-condensable gas is negligible

No solid should precipitate out from the concentrating solution

The superheat and sub-cooling conditions of the condensable steam is negligible

No fouling should occur on the evaporator surface

Flow of non-condensable gas is negligible

Which one of the following is not an assumption taken before applying

1.	Which one of the following is not an assumption taken before applying enthalpy balance on the evaporator?
A.	No solid should precipitate out from the concentrating solution
B.	The superheat and sub-cooling conditions of the condensable steam is negligible
C.	No fouling should occur on the evaporator surface
D.	Flow of non-condensable gas is negligible
Answer» D. Flow of non-condensable gas is negligible

Discussion

No Comment Found

Related MCQs

If the mole fraction of solutes in the feed is 0.2 and in product is 0.75, then what is the evaporate formation rate if product formation rate is = 15kg/hr?
What is the correct representation of the solution temperature as the evaporation proceeds in an evaporator?
Why is the calculated heat transfer area more than the inner surface heat transfer area of the evaporator?
What is the overall heat transfer coefficient of an evaporator setup of internal diameter is 30cm and 1m length cylinder in order to evaporate 10kg of water from a feed of 50kg at a temperature of 25 to a final temperature of 150 ? Saturated temperature of steam = 160 Latent heat of vaporization of water = 2,260 kJ/kg
What is the amount of heat that needs to be supplied in order to evaporate 10kg of water from a feed of 50kg at a temperature of 25 to a final temperature of 150 ? Latent heat of vaporization of water = 2,260 kJ/kg
If Qs is heat supplied by the steam and Qf is the heat evolved in the feed, then the overall heat transfer coefficient can be represented as? Here AF = Area of film and AW = Area of wall.
In the given equation, what do you understand by the enthalpy balance, which element is it applied for? ( dot{q}_l=( dot{m}_{fl} dot{m}_{cl})h_v- dot{m}_{fl}h_{fl} + dot{m}_{cl}h_{cl} )
The amount of heat transferred through the evaporator wall is actually equal to which one of the following?
The flow of vapour in an evaporator is assumed to be non-condensable else the calculations would differ for the evaporator if the gas condenses.
Which one of the following is not an assumption taken before applying enthalpy balance on the evaporator?

Which one of the following is not an assumption taken before applying enthalpy balance on the evaporator?

Discussion

No Comment Found

Related MCQs

Reply to Comment