[Stoves] Argand lamp and Woodgas Stoves

[Saibhaskar Nakka]

Dear Andrew Parker,

Thank you very much for the links. I am very much inspired by the work of Aimé
Argand the designer of Argand Lamp. The greatest innovation of 18th century.
Although the purpose of lamps (oil lamps) and stoves (woodgas stoves) is
different, but there is a lot to learn from oil lamps and improve the
woodgas stoves efficiency. Still many people in the developing world depend
on the lamps for lighting, probably we could create woodgas lamps too for
them. I have devised an adopter earlier for Magh-1 woodgas stove for
creating spout of fire and also a woodgas
lamp<http://picasaweb.google.com/saibhaskarnakka/MaghIVWOODGASLAMPSTOVE#>
 , http://picasaweb.google.com/saibhaskarnakka/MaghIVWOODGASLAMPSTOVE#
so that community could use the same woodgas stove for lighting as an option
during community events during nights. In the recent discussions we have
come across the heating devices using woodgas technology (Stephen Brown).
Woodgas technology could be a solution for Cooking, Heating and Lighting.

Below is the brief reference about the Argand Lamp from Wikipedia.

Intro about Argand Lamp
The *Argand lamp* was invented and patented in 1780 by Aimé
Argand<http://en.wikipedia.org/wiki/Aim%C3%A9_Argand>.
It greatly improved on the home lighting oil
lamp<http://en.wikipedia.org/wiki/Oil_lamp> of
the day by producing a light equivalent to about 6 to 10
candles<http://en.wikipedia.org/wiki/Candle>.
It had a circular wick <http://en.wikipedia.org/wiki/Candle_wick> mounted
between two cylindrical metal tubes so that air channeled through the center
of the wick, as well as outside of it. A cylindrical chimney, in early
models of ground glass and sometimes tinted, surrounded the wick, steadying
the flame and improving the flow of air. It used a supply of good liquid
oil, such as spermaceti <http://en.wikipedia.org/wiki/Spermaceti>
whale oil<http://en.wikipedia.org/wiki/Whale_oil>,
supplied from a separate reservoir as the fuel. Aside from the improvement
in brightness, the more complete combustion of the wick and oil required
much less frequent snuffing (trimming) of the wick.
http://en.wikipedia.org/wiki/Argand_lamp
http://en.wikipedia.org/wiki/Aimé_Argand<http://en.wikipedia.org/wiki/Aim%C3%A9_Argand>

Dr. N. Sai Bhaskar Reddy

>
>   4. Re: Magh Utham Woodgas Burner (acparker at xmission.com)
>
>
>
> Message: 4
> Date: Fri, 02 Jan 2009 22:25:58 -0700
> From: acparker at xmission.com
> Subject: Re: [Stoves] Magh Utham Woodgas Burner
> To: Discussion of biomass cooking stoves <stoves at listserv.repp.org>
> Message-ID: <495EF6E6.84569CE2 at xmission.com>
> Content-Type: text/plain; charset="us-ascii"
>
> I have attached images (.gif) from US Patent 13674 that show a modified
> Argand (center draft) lamp.  You can view/download .tif images of the
> complete three page document here:
> <http://patft.uspto.gov/netahtml/PTO/srchnum.htm>
>
> Type 13674 in the query box to get to the document images.
>
> Early Aladdin and Rayo lamps (and many, many others) were also center
> draft and there are some decent sites that describe these lamps.
>
> I have an old Perfection kerosene heater and took a look at it.  It
> varies a little in configuration of the flame spreader, but it is still
> recognizable as a modified Argand burner.
>
> You can download a copy of Damon Ogle's study on controlling draft in
> Rocket Stoves here:
> <http://www.repp.org/discussiongroups/resources/stoves/Ogle/stovedraft.pdf
> >
>
>
> I have a couple of ideas for modifications, but I still need to draw
> them up.  I will post them as soon as I can produce something legible.
>
>
> Andrew Parker
>