I have a question about evaporation
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Dear sea friends, if 8 m3 of a 45% alcohol solution is heated electrically from 75 degrees to 100 degrees, with the alcohol continuously evaporating over a period of 30 minutes, how much heat will be absorbed by the solution during this process? What is the power of the electric heating?
This can basically be calculated; it’s the materialized content. First, it is necessary to calculate the sensible heat required for the solution to rise from 75 degrees to 100 degrees in liquid form, which is Cp*m*Δt; then, the latent heat part needs to be calculated, which is γ*m (for alcohol). There is a lack of data on the evaporation rate of alcohol over half an hour here, but it can be assumed that all the alcohol in the solution has evaporated. Of course, it is necessary to look up relevant physical property data during calculations, and pay attention to the corresponding units. Hope this is useful to the original poster.
Does this separation require heating to 100 degrees? ? ? It seems that everything was vaporized along with the water; the manufacturing process needs to be chosen again