Mixing air how much water leaving?

[peet_dk]

I have a situation like this:

Where C is a air stream from a pipe, and A is the sky. Droplet will be made, and there will be fog.

Now I have to calculate the amount of water leaving the air.

In my book I found this equation:

Q_water = Q_dry.air.C * (x_A - x_C)

But do it have to be point C and A? Why not the two points where RH=100% ?

And how do I know how much water that there will be in the air as fog, and how much will raining down?

 

[Mech_Engineer]

I would recommend looking into a psychrometric chart, and modeling processes on that chart: http://en.wikipedia.org/wiki/Psychrometrics

 

[peet_dk]

Thanks for the reply.

Here is the cooling processes into the diagram, A-B and A-C. If you look at the two processes, will they produce the same amount of condense?

 

[peet_dk]

I made a pdf of the diagram, with more details on it.