Open Source Dehumidifier

Basics

• A device that removes water from the air
• Models with different methods
• Models with constant run vs "smart" set humidity?
• Main original version will use a TEM , heatsinks, and an arduino
• Others could be dessicant + heat regeneration, or Electroosmosis

Minimum Viable Product

• Either drains into a tank, or a small pipe fitting
• Optional arduino integration, with a simple off/on swtch being the other option
• Additional modules can be added to improve capacity
• Uses standard cpu heatsinks?
• Future custom "cold side" water condenser?

Basic Design

PSU

• ?

Control

• Either a switch, or an arduino with a humidity probe and temperature prob inserts
• With the arduino also perhaps remote control itegration (Zigbee, BLE, etc)

TEM

• Small cheap square
• Just needs to reach at or below the dew point
• This will be inneficient, but it will work as needed, and is cheap to buy, so if power is plentiful, this is of little issue

Heat Exchanger

• Standard CPU air-solid heat exchanger?
• Cheap "stock" ones would work?
• Untill a custom cold side condensation optimized device is developed, 2 will be needed, one for each side

Enclosure

• Either a custom 3D Print, or a Breakout Box from a hardware store

Plumbing=

• Sealed path leads to fitting
• Barb fitting perhaps, or screw?

Tank

• Optional water resevoir, low production, but this is mostly pure distilled water

Code

• Basic "set humidity" -> check all the temp/humidity sensors -> run the math needed to determine TEM voltage and run time
• Essentially a thermostat for humidity
• Also optional ovveride switches, and some cheap display (7 segment would even work)

See Also

• Open Source Filament Dry Box