If you are using Silica Gel you would need to get above the boiling point of water to effectively remove the moisture.
B.E.

Thsnk you Berkshire.

I was not aware that it needed to be boiled to evaporate its absorbed moisture. Does it actually and uniformly need to exceed 100C?

Nevertheless certainly a solar cooker configuration ccould achieve that. No?

That kind of heat however would affect the temperature of the ventilation. In cool climates that could be an advantage but in hot a disadvantage. I live in FL USA.
Kind regards,
Cornelius

The recommended temperature for regenerating Silica Gel is 100 to 140 degrees celsius. A concentrating type solar cooker can achieve that. The flat plate types have a hard time getting over 70degrees celsius.

 I would suggest a damper and vent to allow the humid air to vent while the desiccant is regenerating.

The other suggestion would be a desiccant wheel running between a hot duct ( regenerative) and your cold duct.
B.E.

Thank you Berkshire this is just what I need.
CVS

Hello all,

I am an intern at a company called voestalpine Elmsteel in Lafayette, IN.  I am going back to Purdue soon, and am trying to wrap up/implement a few projects before my time is up here.  We are having problems finding a solution to the excess water/cleaner solution vapor being exhausted by our aqueous parts washing machines.  They have a small footprint and exhaust the vapor at a low flow rate (somewhere around 30 CFM I believe), but over the course of the day, they expel 50 gallons of water in addition to about 2 gallons of cleaner into the factory in the form of vapor.  I cannot find a mist collector or desiccant dehumidifier that can extract that amount of liquid from the exhaust, but also run at a flow rate low enough to suit our machines.  In the past, a centrifugal unit was installed with ducts connected to the exhaust vent on top of the machine.  However, the blower ran at too high of a flow rate, and drew about 40 to 50 degrees F of heat from the machine.  For this reason, a lower CFM, high extraction machine is needed, but one that can extract the liquid at temperatures around 150 deg. F.  Does anybody know of a potential solution?