Noorie Lantern/Generator

["Tom Reed" <tombreed@attbi.com>]

Dear Harmon, Anil  and all:

I like the idea of adding a thermoelectric generator to the Noorie Lantern.
How did Anil Rajvanshi, the inventor of Noorie, get off this list?  He has
probably considered this and it's either in the works or rejected.  Lets
hear....

Of necessity, the Wellsbach Mantle light source rejects heat at >1500 C, so
there is plenty of heat still available for conversion.

~~~~~~~
The "light" generation technology Harmon referred to is called
"thermophotovoltaic" and they are working on it at the National Renewable
Energy Lab, NREL.  In fact they have been working on it for many years, at
least since 1994 (see http://www.er.com/publications.htm).  Maybe need to
rename it the National Renewable Job Lab, since they aren't very focused on
getting research out to the market place.

Onward..          TOM REED                  BEFGASWORKS



Dr. Thomas B. Reed
1810 Smith Rd., Golden, CO 80401
tombreed@attbi.com; 303 278 0558 Phone/Fax
----- Original Message -----
From: "Harmon Seaver" <hseaver@cybershamanix.com>
To: "Crispin" <crispin@newdawn.sz>
Cc: "Stoves" <stoves@crest.org>
Sent: Saturday, November 16, 2002 7:00 AM
Subject: Re: Noorie Lantern


> Crispin;
>    Do a google search on thermoelectric generator. There are a multitude
of
> companies working on these, with quite a few actually for sale, and the
prices
> are dropping rapidly. For instance, here's just one of many where you can
buy
> these today. http://www.hi-z.com/  This is also the website that shows a
1kw
> unit composed of many of the smaller cells
http://www.hi-z.com/websi07.htm
>    There is also a sister technology that uses the *light* from a flame,
not the
> heat, which is also undergoing rapid development. Can't think of what it's
> called at the moment (I'm only on my first cup of tea this am).
>    I think generally these technologies are expected to rival prices for
> solarelectric or undercut them shortly.
>
>
> On Sat, Nov 16, 2002 at 10:57:10AM +0200, Crispin wrote:
> > Dear Lantern users and lovers
> >
> > I had a look at the page linked and I have one comment (other than you
guys are all on the rright track):
> >
> > I see that a comparison is made with the florescent tube which comes off
looking very good compared with all the other options.  However, there is no
mention made of a 'coiled' florescent tube that fits into a regular light
socket.  They are very efficient and present a possible future for rural
India.
> >
> > In Southern Africa these bulbs, which cost a great deal of money - about
$7 are promoted as an answer to energy comsumption as they last for ages and
consume very little power.  I am not sure if it is true but it seems that
they are about 35% efficient, maybe more.
> >
> > It is not possible to use a wick of some material that instead of
emitting light, emits charged particles that are able to 'light up'
florescent white powders?  That way the burning fuel (whatever it is) could
heat a wick that emits particles efficiently in the range that in turn
drives a florescent tube.
> >
> > The tube could be something like a hollow pipe, meaning a double-walled
one with an air-evacuated centre portion.  The florescent coating would be
in the outside of the inside surface.  This would slip over the present
mantle and pick up radiation.
> >
> > This type of two-stage excitation would give light from the original
flame, the rare earth mantle and the florescing powder.
> >
> > It also appear to me that burning anything cleverly (like producer gas)
might be able to produce a conductive plasma that will allow for something
clever to be done between stacked plates, such as generate enough power to
charge a cell phone.  Charging phones is a major problem in rural areas
where coverage by radion is far easier to get than power to charge the
phones.
> >
> > A lantern that charges a phone (very low power requirement) would sell
imediately, whether or not it was pressurized at 2kg/cm^2 or much less.
> >
> > Are there metal stacks available that will generate 6 VDC?  What
happened to that talk last year about a stove in the western USA that was to
produce 1Kw?
> >
> > Thanks
> > Crispin
>
> --
> Harmon Seaver
> CyberShamanix
> http://www.cybershamanix.com
>
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http://www.crest.org/articles/static/1/1011975672_7.html Carbon

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