[Stoves] ------ making salt just an aside

Ronal W. Larson rongretlarson at comcast.net
Sat Aug 29 18:00:09 CDT 2015


Hi all;  adding two

	On a different list there has been considerable dialog on making char using pits or metal cones/cylinders.  Unlike the stoves list, there has been little discussion of productive use of the flared (quite clean) pyrolysis gases.  The emphasis for that discussion is solely on the char.  These can be big systems - area exceeding 1 square meter.

	My guess is that salt production could fit in nicely in the right places - even starting with ocean water.  Otherwise the pyrolysis gases have no use/value.  

Ron



On Aug 29, 2015, at 4:08 PM, Rebecca A. Vermeer <ravermeer at telus.net> wrote:

> Andrew, Trevor,
> Tradition!  Tradition!  Bear in mind that the early salt makers of Ilocos Norte, Philippines were poor people with limited access to land and sea.  The craft of salt making has been handed down through generations  and I am glad to see that tradition survive to the present  despite  competing industrial scale production of the rich who can afford large tracks of waterfront land.  Anything we can do to preserve the livelihood of many people and our cultural heritage would be much appreciated.
> 
> Rebecca
> 
> ----- Original Message -----
> From: ajheggie at gmail.com
> To: "Discussion of biomass cooking stoves" <stoves at lists.bioenergylists.org>
> Sent: Saturday, August 29, 2015 12:38:11 AM
> Subject: Re: [Stoves] ------ making salt just an aside
> 
> [Default] On Sat, 29 Aug 2015 17:48:13 +1200,Michael N Trevor
> <mtrevor at mail.mh> wrote:
> 
>> Well here in the middle of the Pacific Ocean, we have wind power sun and 
>> salt water and El Nino.
>> Solar stills making drinking water and producing salt would make sense.
> 
> 
> Yes like Anand I was surprised by the number of pictures Rebecca found
> on google of fires evaporating salt pans when solar power would seem
> an ideal means to do the job. One could imaging a large flat plate on
> a very slight incline having seawater trickled over it with salt
> crystals raked back to the top to dry, covered with a plastic sheet
> (how long does uv stabilised pvc survive in the tropics? It lasted
> about 30 years at my house in England), as you say the humid air above
> the evaporator could be condensed on a seawater cooled  container  and
> with a prevailing wind the only input power would be a pump to bring
> fresh seawater for cooling, with a re circulating injector Tee for any
> saturated saltwater that escaped evaporation on the pan.
> 
> AJH
> 
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