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  • From: Cory Brennan <cory8570@yahoo.com>
  • To: permaculture <permaculture@lists.ibiblio.org>
  • Subject: Re: [permaculture] Ethical energy use - what is your favorite "better than PV panels?"
  • Date: Tue, 1 Jan 2013 19:03:11 -0800 (PST)

Thanks for the explanation, and the way what I described works is solar
electricity is used to trap and store hydrogen which runs a fuel cell. I
don't know of any models that are working though. This is all very
interesting stuff, thanks for sharing it!
 
Koreen Brennan

www.growpermaculture.com
www.facebook.com/growpermaculturenow
www.meetup.com/sustainable-urban-agriculture-coalition


________________________________
From: venaurafarm <venaurafarm@bellsouth.net>
To: permaculture <permaculture@lists.ibiblio.org>
Sent: Tuesday, January 1, 2013 9:05 PM
Subject: Re: [permaculture] Ethical energy use - what is your favorite
"better than PV panels?"

On 1/1/2013 8:05 PM, Cory Brennan wrote:
> Damn Laurence, you went off on me there! :-) Gasp, you're a machine
> nerd!! :-))

I took a really good course in manual machining fundamentals.

Wouldn't mind putting myself to work in the shop developing useful green
tools and equipment. My present intent is to make hand garden tools. See
my website: http://www.avantgeared.com. I wrote a garden handtool
sourcelist that you can access from there.

> What was explained to me about local turbines  (and I am just
> mindlessly repeating what I've been told here :-) is that it takes
> the right equipment to tool them correctly so that they work with
> maximum efficiency, especially on a broadscale - it's very precise
> work and the factories that do that work specialize in large turbines
> and it would cost some bucks to retool or build one that could custom
> create small turbines.

You are talking precision machines made with special alloys and
manufacturing processes that have very long service lives an are
rebuildable.

We do not need such fancy technology for local small steam turbines.
Make them so they can be rebuilt or repaired or replaced without a lot
of expense. Set this up so that local shops can do this; shops located
within communities employing community members.

> I'm looking at broad scale solutions that
> millions could access as well as what machinists might be able to do
> in their garages. One acquaintance was using a diesel motor as part
> of the hookup which was primitive compared to a custom turbine. Where
> you really start getting efficiencies from what I've been told is

> when combining things like steam solar and fuel cells that can hold
> the charge.

Never heard of this, please explain: "steam solar and fuel cells that
can hold the charge".  thought that fuel cells use hydrogen and operate
along. How would one combine a fuel cell with a steam turbine? How do
fuel cells "hold charge". I thought they generated electricity that
would be stored in batteries.

> Would love to hear about the new steam turbine, and I cc'ed a couple
> of people who will be able to appreciate your description below.

I haven't Googled a single thing about small steam turbines yet or asked
in the machinist forum I frequent, Practical Machinist. I am sure I will
find much material in those two places that will be worth looking at. I
have a machinist website and a machinist mailing list, if anyone is
interested.

Machine Shop
http://www.ibiblio.org/machineshop/

Machinist Forum
http://lists.ibiblio.org/mailman/listinfo/machinist

Here are pix of a shop made anvil a friend welded up for me out of
recycled materals I had on hand:
http://www.ibiblio.org/machineshop/flfork+drawbar-anvil/FLFork+Drawbar-ANVIL003.JPG
http://www.ibiblio.org/machineshop/flfork+drawbar-anvil/FLFork+Drawbar-ANVIL005.JPG


Onward.

LL
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Subject: Re: [permaculture] fruit trees
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could you please send me an email contact for the person who is
selling their cider press?


On 12/23/12, Frances and David <fdnokes@hotmail.com> wrote:
> Sea buckthorn not only produces a highly nutritious fruit (which requires
> processing and gloves to harvest), but it is, reputedly, a most adaptable
> plant to earth conditions, and has natural protection from other creatures
> that might want to harvest the fruit. And, it is a nitrogen fixer!
> ***
> We were chatting with an apple and pear specialist who has run a traditional
> cider press for decades. (He is selling off his equipment, btw... complete
> with support and consultation to the new owner)
> He explained what the off/on nature of apple harvests was about – this, no
> doubt, applies to other fruit trees as well...
> People often refer to the phen. of an ‘on’ year and ‘off’ year for apple
> harvest. What Bill explained was that, the trick is to thin the apples when
> they are the size of ping pong balls, making selections among closely
> located specimens... Otherwise, the tree has such a huge hormonal output
> that it has little energy for the buds it is also preparing for the next
> year. The trick is to even out its hormonal workload with a result of a more
> consistent year-to-year yield. Otherwise, what happens is that the buds are
> few for the following year on the year of a huge apple outlay, and then, in
> the year with less apples, the buds for the following year are
> proportionately higher in number... Very interesting to learn about the life
> cycle of the apple tree, we thought, and to understand more about its
> productivity cycles.
> I guess the expression might be ‘pinch back’? Not sure... Not even sure that
> I’m using quite the right terminology when it comes to the sending out of
> buds for the following years. I’ll check with Dave. He likely remembers
> more...
>
> Fran
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