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permaculture - Re: water utilization model (fwd) AIR WELLS

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  • From: "John Abdon" <jabdon@hotmail.com>
  • To: "permaculture" <permaculture@franklin.oit.unc.edu>
  • Subject: Re: water utilization model (fwd) AIR WELLS
  • Date: Wed, 01 Sep 1999 06:47:27 PDT




From: CtopherP@aol.com
Reply-To: "permaculture" <permaculture@franklin.oit.unc.edu>
To: "permaculture" <permaculture@franklin.oit.unc.edu>
Subject: Re: water utilization model (fwd) AIR WELLS
Date: Thu, 26 Aug 1999 16:43:52 EDT

... it was possible to produce as much as 6,000 gallons of water
daily for every 1,000 square feet of
condensing surface ...

That works out to just over 1/2 ounce of water per minute per square foot of condensing surface. Remembering that heat is released as water vapor condenses into droplets, a glance at a mechanical engineering 'steam chart' reveals why this idea for recovering water from the atmosphere has not been demonstrated to date: the released thermal energy quickly heats up the condenser and the temperature difference between the air and the condenser approaches zero, at which point no condensation will occur.


`\\\||/ johnAbdon jabdon@hotmail.com
(@@) Kirkland, Washington, USA
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