Wave-Powered Desalination 184
dptalia writes, "Scientists think they've found a way to harness the energy of waves to desalinate salt water. Currently desalination is an energy-intensive process, but this new design harnesses the renewable energy of waves to produce fresh water. Many countries depend on desalinated water to support their populations, and this invention could lower the cost of water generation." Production versions of the "desalination ducks" would be about 10 meters in diameter and 20 meters long. Each would supply water for more than 20,000 people.
Engineer (Score:5, Informative)
The only reason I point that out is that I'm an engineer, and I'd like credit to go where it's due.
Re:Why not solar? (Score:3, Informative)
While easy in design they are rather expensive, require huge areas of land to produce sizable quantities of water and weather dependant. Also you cannot have moving water since it needs time to heat up so that steam is produced
Re:cool (Score:3, Informative)
So as you can imagine most Australians are eagerly awaiting news of these projects and basically anything that will solve our water problem before, as is often quoted, the shit really hits the fan.
Re:Floating all your eggs in one basket? (Score:3, Informative)
So since we already dimension Oil rigs and equipment for mammoth storms, freak waves and gas explosions (happening at the same time for your pleasure), I would guess it wouldn't be a problem to build one of these...technical at least. Economical I don't know^^
Re:Wow. (Score:5, Informative)
Neither engineer nor scientist. An inventor. (Score:2, Informative)
However, his invention is really interesting. And I really hope to see it in production.
According to Wikipedia:
Re:Solar Stills (Score:3, Informative)
However, let me point out that there are two types of solar panels out there: photovoltaics [wikipedia.org] and thermal solar [solarserver.de]. The design I was talking about is, of course, a "thermal solar" type of panel, that does not generate electricity (that's a photovoltaics) but that uses the heat radiated by the sun.
Of course, someone out there is going to say: "Aha! But thermal solar can also be used to generate electricity", to which I reply: yes, but these use a Stirling Engine, and not the simple fluid-heating mechanism that I described in my first post. See here [wikipedia.org] for an example of a Solar Stirling engine used to generate electricity.
A lot of people who think solar panels are inefficient and/or too expensive think about photovoltaics, and not heat-transfer solar panels. The latter being, of course, much more simple in design and less expensive, while still providing important functions.