"Max Water" - unlimited water availability

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tblack01's picture
tblack01
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"Max Water" - unlimited water availability

 

In an earlier post I said I would post this link to an invention displayed on a TV program in Australia, "The New Inventors," where there are many interesting ideas including a special on water inventions....

http://www.abc.net.au/tv/newinventors/specials/ 

The particular invention, "Max Water" with the link below, is only at the conceptual stage as far as i know, but aims to use wing energy to extract humidity from the air using refrigeration technology - so that may not be available forever, but while there is manufacturing it may develop into an important invention for cheap and locally available water.

http://www.waterunlimited.com.au/index.html

Stan Robertson's picture
Stan Robertson
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Re: "Max Water" - unlimited water availability

Condensing water from the air may make water locally available where it would otherwise be difficult or impossible to obtain, but it will not be cheap. At 0.54 kcal/cc, the energy cost is much too high for any but small scale and critical applications.

Stan

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roswell_6
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Re: "Max Water" - unlimited water availability

If you are not aware about it, you might want to take a look at what has been used in some coastal parts of Chile for some time now. They use 'fog nets' to catch water from very low clouds that form on the coast. For sure, they have unique meteoroligical conditions. I have never seen these camanchaca clouds elsewhere but I guess there must be other suitable spots to do this.

Check this link for an English description: http://www.idrc.ca/en/ev-26965-201-1-DO_TOPIC.html

 

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Re: "Max Water" - unlimited water availability

I worked on a project in college to collect condensed water by blowing humid air through underground tubes.  The idea was to transfer heat from the warmer air to the cooler soil.  Our prototype didn't work very, but it might work better in the right climate.

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tblack01
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Re: "Max Water" - unlimited water availability

Stan, the concept (yet to be commercialised, and perhaps even proven still) is that wind supplies the energy by blowing through the device - so the only cost is building the device, the refrigerant and water containing aspects etc.  I recall there is something about it working in some environments (? hot) and not others.  Tom

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Re: "Max Water" - unlimited water availability

Stan is right, it takes a tremendous amount of energy to change the state of a liquid to a gas or gas to a liquid i.e. to boil a kilo of water (at atmospheric temp and pressure) into steam takes 2.2MJ!  the reverse is true of condensing.  Admittedly, the energy input will come from wind but you need to build them and maintain them and then there is the all too important fact that what if the air drops in its natural humidity level then the amount of water collected will drop.  I think in Australia's case they should use the wind energy to just desalinate sea water and practice conservation.  I think the Aussies should leave wheat farming to the USA and Canada.

 

E

 

tblack01's picture
tblack01
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Re: "Max Water" - unlimited water availability

Eb, I don't think it is very likely humidity will change overall, though areas could certainly alter. I understand the amount of water in the world remains constant, so if proven this device will extract water in some places, moreso in hot climates I now understand.

Below is an extract from one site mentioning the device.  I am not an engineer, but the energy required for desalination sounds huge compared to the temperature change involved with condensation.  The link below contains a video of the device and other information/links. The inventor was interviewed (transcript available via a link) and he talked about how a beetle inspired his method of inducing droplets to form.  I'm crossing my fingers that this works :)

Re Australian farming, I don't know a lot about the relative efficiency of our wheat farming, but we grow a lot of rice which is stupid for such a dry country.  cheers, tom

 

Dr Whisson himself describes his Whisson Windmill as follows:

"The
essential principle is that more wind is used for power than for water
supply. In other words, the area of power turbines is greater than the
area of turbines leading to water harvest. This is all made much easier
by the invention of a new kind of wind turbine or 'windmill'. The
amount of water available in the air is for all forseeable practical
purposes unlimited. The bottom 1 kilometre (in the atmosphere) alone
contains about 1.000,000,000,000,000 litres of water and that is turned
over every few hours. The "Whisson Windmill" or Max Water From Air
device will make it possible to get adequate water anywhere at any
time, drought or no drought."

http://www.alternate-energy-sources.com/Whisson-windmill.html 

 

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