- #36
Ripcrow
- 82
- 7
Ok. I’ll set a few parameters so we can work through it.russ_watters said:Nobody has suggested that the idea won't work, and I gave you an approach and offered to walk you through it, but you didn't seem interested. If you really want help, you'll need to put some more focused effort into it and lose the attitude/actually accept the help that is being offered. Your current tack getting you nowhere.
The equations/math of this is really easy. You're just looking for the heat of vaporization/condensation (read from a steam table) on each end, times the flow rate, and the pumping power is volumetric flow rate times pressure (more complicated if you are pumping/compressing a vapor though). The work here is in defining/designing the process steps. I could pick them for you, but then this would be my design, not yours.
So, step/process 1: You said you have/want to use 40 C water and want to distil 1000 liters. Look up the pressure and the heat of vaporization in a steam table. Multiple the heat of vaporization by the mass of water. Also, specify the time. Then divide the energy by time to get the rate at which you need to add heat to boil your 1,000 L.
1000 ltrs at 20 degrees celcius needs 23.244 kilowatts to reach 40 degrees celcius in 1 hour. Pressure requirement is 55.3 torr Or 27.7473 in hg .
is mass of water equal to 40,000?..
further parameter will be set at cold side temp of 1 degree so pressure will be 4.9 torr or 29.7318 in hg.