[Stoves] Stoves Digest, Vol 13, Issue 42

[frank]

I am having problems sending these pics to some due to the file size.
I will try again sending one picture at a time.

Also, the glass looks to be 'ground glass' with the bottom surface 
having a texture.

Frank




David Whitfield wrote:

>me too,
>sounds great
>On Jul 30, 2007, at 1:10 AM, Vijay Bhat wrote:
>
>  
>

>>------------------------------
>>
>>Message: 6
>>Date: Sat, 28 Jul 2007 03:58:13 -0700 (PDT)
>>From: eddie owedhi
>>Subject: Re: [Stoves] Solar Water distillation
>>To: frank at compostlab.com, Discussion of biomass cooking stoves
>>
>>Message-ID: <179143.59870.qm at web57611.mail.re1.yahoo.com>
>>Content-Type: text/plain; charset=iso-8859-1
>>
>>could we discuss introducing the solar distillers in health  
>>facilities in rural areas near lake victoria here in Kenya.i have a  
>>background in community health, and environmental  
>>studies.sincerely,Eddy.
>>
>>frank wrote:
>>Stovers and clean water people;
>>
>>I found some more info on the solar distillation unit we installed in
>>1985 and used until we moved into a larger building.
>>
>>
>>Each unit is 6' X 3'
>>The slope is from the box being 5.25" along the back long side down to
>>3" along the front long side.
>>The collecting is along the lower front in a stainless steel U.
>>There is a reflector along the long high side to reflect the sun onto
>>the glass
>>
>>It works by a pool of water that is heated from the sun then condenses
>>on the under side of the glass due to cooler air flowing over the
>>surface. The water hangs onto the glass and slowly moves down the  
>>slope
>>to drop into a stainless steel U. The unit is complete sealed with
>>silica glue.
>>
>>
>>This is what the contract stated:
>>
>>The unit will generally give 2 gallons per day.
>>An automatic feedwater system, time clock operated, connected to your
>>municipal water supply
>>Brine flush lines to waste
>>Product (distilled) water to your reservoir
>>
>>The solar still feed and brine flush water requirement is approx.  
>>12 gal
>>per day.
>>Will work for up to two days without power then the feedwater can be
>>hand filled if needed to prevent the pan from drying out.
>>
>>In the event the glazing will lose its hydrophilic quality ammonia
>>hydroxide is added to the feedwater and approx two weeks needed to
>>re-establish properties. (note: we never had this problem once the two
>>weeks got it started.for the several years we used it.)
>>If seawater is used the daily feedwater requirement increases from 12
>>gal to 18 gal per day..
>>
>>We used four units and got about 9 gal per day total in this Calif
>>climate. We also added low watt heaters to keep the units running  
>>later
>>into the night before the flushing and feedwater replacement.
>>
>>I have pictures if anyone is interested.
>>I will be gone for the next week and will send pictures for those  
>>that ask.
>>
>>Frank
>>
>>    
>>

-- 
Frank Shields
Soil Control Lab
42 Hangar way
Watsonville, CA  95076
(831) 724-5422 tel
(831) 724-3188 fax
frank at compostlab.com
www.compostlab.com