Sounds like a lot of great designing. The FeCl seems like fine
material, the corrosiveness would require confinement in a materail that
would be impervious.
I still keep going through Teton and Redrok information, I've looked
through both a while back, Redrok (Duane Johnson) is where I got the
suntracking electronics for my dish. And his site keeps growing and is
worth going back to look at new ideas, plans and designs. Teton has a
lot of great numbers for calculating essential number for a solar
system, and are applicable easily to the "on the cheap" design I'm
putting together.
I'm interested in the least expensive windmill, I do get a fair amount
of wind, even here in my valley, but it gusts from one side, then the
other, and not very consistently from one direction. I studied the
Savonius rotor and find it to be perhaps the best, for my locale, but my
neighbor, who lives at the top of the hill has a good directional wind
much of the time, is also interested in alternate energy, (he built his
passive solar, earth bermed house over 20 years ago, donated a diesel
truck to my experiment with biofuels, uses my biodiesel in his other
diesel truck... and he'd benefit well from a windmill that would be
able to produce some or all of his energy needs.)
I take it that the 20X20 section of parabola is measured in feet? or
inches?
The 10' parabola that I'm using will ignite a 2"X4" stud in about 3
seconds. And makes smoke immediately. I have no thermometer that can
actually give me the temperature of its focus, but I do know that I have
no desire to feel the heat with my hand! LOL
doug swanson
Kirk McLoren wrote:
> years ago I penciled a 20x20 section of a parabola (cassegrain) and
> proposed storing thermal energy as latent heat in a m3 of FeCl. As I
> recall it was comprable to 5 US gallons of gasoline. I think the phase
> change was around 600F. Since the aperture to the thermal storage was
> the focal point and it re expanded before hitting the receiving media
> reradiation was reduced. Proposed insulation was foam glass which is
> used commercially by the refrigeration industry.
> The solar concentrator plans Teton has may be a good starting point.
> Redrok is another good resource.
>
>
> All the best
> Kirk
>
> BTW photos of the worlds least expensive windmill for pumping water
> should be soon. All I have left to do are the sails. Is basically a
> Persian windmill but I have dispensed with the wall and made it
> omnidirectional by making the sails self furling. A merrygoround and
> bedsheets.
> :)
>
> */doug swanson <[EMAIL PROTECTED]>/* wrote:
>
> I agree that in tight times, basic or even primitive skills are more
> valuable than gold. Basics in Agriculture, animal husbandry, health
> maintenance, knowing how to preserve food without supplies you'd
> have to
> get at a grocer's store, blacksmithing, wood working, etc. are all
> skills that should be present in what I see as being a new birth of
> communities which will establish themselves once TEOTWAWKI happens.
>
> Energy systems can be a large part of this, since my wood heater
> currently relies on a chainsaw to supply fuel, and my biodiesel
> relies
> on restaurant "wastes" and petro-derived methanol, and industry
> produced
> hydroxides, I still don't feel that my current situation is
> sustainable. Solar makes a lot of sense in my location, and I've been
> working in that direction, but with a twist. The 10' parabolic
> collector can collect a lot of heat, and rather than convert it
> immediately to electricity, which I'd then have to store in some
> sort of
> battery (with all the problems that batteries come with, ie. disposal
> when they don't work anymore, and then having to acquire new
> ones..., )
> it makes better sense to store the heat from the collector in 55
> gallon
> drums of water, which can actually make up the rear greenhouse
> wall...
>
> I've been studying Stirling engines for some time now, guess I've
> read
> everything that Google can show me about them, crammed all the ideas
> into my head, noted the major disadvantages of most of them, (They've
> got to be airtight, precision power piston, most aren't
> self-starting,
> etc...) and have come up with a design that addresses these problems,
> and eliminates them by integrating much of the engine into 3 moving
> parts. Heat goes in, electricity comes out. I really would like to
> build the prototype, but can't afford a machine shop to make a
> couple of
> its parts. Maybe someone on this list has the right tools to make the
> parts, and would like to see more detailed plans on this. Eventually,
> when a working prototype is producing electricity, the plans with
> step
> by step guidance will be under the "open information license" The
> point
> of the whole system is that wherever possible, the parts should be
> stuff
> that can be found at the junkyard, and that when completed, a home
> power
> generation system is running for under 3-400 bucks. Adding another
> collector just for home heat would be even simpler, under floor heat
> circulation would increase the cost due to plumbing, thermostat
> control,
> etc., but if the hot water was just circulated through a radiator
> (junkyard again) with a fan behind it, the home could be comfortable
> without huge expense.
>
> The efficiency of a Stirling engine makes it a potential candidate
> for a
> hybrid vehicle, and I've been working on something along that line
> also,
> but first things first...
>
> Any ideas are welcome, anything I can do to help pull us out of
> the mess
> this planet is in, I will do.
>
> doug swanson
>
>
>
> Jason& Katie wrote:
>
> >you dont need money if you can supply a need. i know more than
> just fuel, i
> >can build just about anything a person would have as a daily
> need. house,
> >furniture, small macines, engine repair, anyone with a skill is
> pretty well
> >safe. it is the people who have never had to work a day in their
> life (CEO's
> >and politicians) that are screwed.
> >Jason
> >ICQ#: 154998177
> >MSN: [EMAIL PROTECTED]
> >----- Original Message -----
> >From: "Mike Weaver"
> >To:
> >Sent: Friday, July 14, 2006 9:01 PM
> >Subject: Re: [Biofuel] {Disarmed} Telegraph - US "could be going
> bankrupt"
> >
> >
> >
> >
> >>Um, it's not really "they" it's "us" too...
> >>
> >>Jason& Katie wrote:
> >>
>
>
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--
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