Solar Still
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Basics
- Typically refers to a direct, passive, solar thermal water distiller
- Can be as simple as a plastic sheet, collection cup, and input basin, or very complex
- PILE of research to sift through on this subject
- These are also different from grid scale Solar Desalination Plants, which use similar methods to fuel based systems (multi-phase flash distillation), but with solar thermal power
Geometries
- Slope
- Stepped
- Dome
Add-ons
- Fins (additional heated area below water surface)
- Pre-Heating of water (often via Parabolic Trough , or Thermosiphon
- Use of Heat Exhchangers (for cooling the air to condense vapor using the input water)
- Contactor Based Evaporation
- Evaporation Pond for disposal of brine, and production of salt
- ... (need to complete this, and sift through more papers)
Temporary Trashcan for Research Papers
- Had a good list of various methods in table 1 -still barely skimmed it
- A Study on Stepped Stills
See Also
- Saltwater Greenhouse a concept that uses Swamp Coolers to make humid, cool, greenhouses in dry areas using saltwater and power (often some form of solar)