File:Cabinet with desiccant dehumidifier.png

Schematic of a cabinet with desiccant dehumidifier. The design uses 2 piles with rock salt to increase the surface area; also the sides are a better place to put the rock salt/sponge/mesh; putting it in the center for example could give problems when filling the cabinets. Also, the salt needs to be placed at the very top to be most effective; this as humid air is more dense and will this rise to above the dry air layer, see following references:

• http://web.archive.org/web/20160405205644/http://usatoday30.usatoday.com:80/weather/resources/askjack/archives-humidity.htm
• http://www.engineeringtoolbox.com/drying-air-d_696.html
• https://en.wikipedia.org/wiki/Humidity#Air_density_and_volume

The idea came from reading following articles:

• http://web.archive.org/web/20181007170640/http://www.salubriousexclamation.com:80/2014/02/use-rock-salt-as-natural-dehumidifier.html
• http://web.archive.org/web/20170620053405/http://www.ehow.com:80/how_7451206_diy-salt-dehumidifier.html
• http://web.archive.org/web/20161205092040/http://www.instructables.com:80/answers/how-to-make-a-diy-dehumidifier-

The design can be used for various purposes:

• to conserve food (such as grains, rice, ...)
• to conserve seeds (for growing new crops) better
• to conserve electric equipment better (computer hardware, video recording equipment, anything else having printed circuit boards, ...)

It will be most effective when used in houses in humid environments (i.e. near swamps, lakes, rivers, ...) Also note that besides using it in cabinets (completely closed ones, so with doors !, no open shelves or cabinets with only 3 closed sides), the system can also be used in food storage rooms, ... You can't use the system as is for dehumidifying the air you breathe in your house though. In the current setup, there are no air inlet/air outlet pipes, meaning the air isn't continuously refreshed. Use the counter current air to air heat exchanger for that (see File:Counter current air to air heat exchanger.png ) Not continuously refreshing the air of the cabinet is much better for this purpose, hence the reason why this was not foreseen.

Finally note that the condensation buckets were not foreseen with a number/text, but it's probably clear enough all ready. Also, the buckets were placed outside the cabinet to increase efficiency; keep them out of the sun.

File data

Created	Unknown date by Unknown author
Uploaded	July 28, 2014 by KVDP
License	GFDL