[Stoves] FW: MANTLE LAMP TESTS

Thu Feb 8 23:30:04 CST 2007

----- Original Message ----- 
From: "Paul S. Anderson" <psanders at ilstu.edu>
To: "Frans Peeters" <peetersfrans at telenet.be>; <eddie at britelyt.com>
Cc: "Harry Stokes - alcohol" <hstokes at blazenet.net>; "Stoves"
<stoves at listserv.repp.org>
Sent: Saturday, February 03, 2007 3:51 PM
Subject: Re: [Stoves] FW: MANTLE LAMP TESTS


> Frans,
>
> Thanks for the message and for the efforts.
>
> Last month I met Mr. Eddie Draper who makes the Britelyt mantle
> lanterns, and he
> has a model that runs on any of the alcohols.  A VERY nice product and
> I showed
> one at ETHOS.  Sells for about $200 including a cookstove substitute
> top.  Visit    www.britelyt.com   for info.
>
> Britelyt has a stronger mantle than what is common for campstoves.  Any
> details
> would need to come from Eddie, who is receiving a copy of this message.
>
> Eddie:  Thanks.  The alcohol lantern was performed well at ETHOS.  See
> photo of
> it in the photo section of Tom Miles report at     bioenergylists.org    .
>
> Paul
>
>
> -- 
> Paul S. Anderson, Ph.D., Geography professor - Emeritus
> Telephone:  USA-309-452-7072 (residence and office)
> Internet site:  www.ilstu.edu/~psanders
> For my gasifier stoves info, go to:
> http://bioenergylists.org/contributors#Paul_Anderson
>
>
> Quoting Frans Peeters <peetersfrans at telenet.be>:
>
> >
> >
> >
> >
> >
> >
> > Dear Paul ,
> >
> >    I have tested a camping gass lamp with a mantle of ThO2 .
> > It is very very weak ! It breaks down in powder by toutching . Gamma
> > counting 3730 Bq eq . Alfa and beta contamination risk is easy . So it
> > is no idea to restart this production .
> >
> > In a museum ,I saw  information ,the material is ThO2 + CeO .
> > I did the test with CeO only .
> > Ceriumoxyde was dissolded in warm nitric acid .
> > Dryed on silk , cellulose and glas microfiber filter .
> > Only the glass fibre was strong anough ,but the sodium gave a yellow
> > color . The wanted  bright effect with CeO only mantle, was
> > unsuccesfully .
> >
> > A vacuum tube with a heater surrounded by white calsite ,CaSO4 cristals
> > . Is used for gamma radiation dosimeter memory .
> > Afterwards heated in a photomultiplier luminometer , it gives  light in
> > proportion to
> > Accumulated radiation .
> > Overheated to clear red heat, it  gave no  extra white, glow wanted for
> > use as mantle !
> >
> > Light measurement : with TP 60 SILICON SENSOR at 1 foot gives :(
> > 1uA=1Lux ) TEA candle =14uA visible and 6 uA IR invisible . Total 20uA
> > light . So 14 uA/ 1 Candela (Cd ) Gass ThO2 WICK lamp gives 40 uA light
> > +23 uA IR light ; Total 63 uA . So +- 3 Candelas.
> >
> > An US firm sels mantles for ALLADIN  kerosin lamps for 10 $. They do not
> > answer on questions about mantle specs ; ThO2 or not .
> >
> > I finish this old road to extra light .
> > May be AJH has old methods with rare earth metals to make mantles ?
> > I lost a stove info about that .
> >
> > Better think about NEW technologie . 20 candela LED 20°angle ,  0,064
> > watts for 2 $ !
> >
> > Greetings
> > Frans
> >
> > -----Oorspronkelijk bericht-----
> > Van: psanders at ilstu.edu
> > Verzonden: zaterdag 4 november 2006
> > Aan: Frans Peeters
> > Onderwerp: Alcohol Mantle Lamp.
> >
> >
> > Dear Martin, Frans
> >
> > Interesting comments about wicks.  I do not know how I will utilize that
> > information.  But here is a possible issue:
> >
> > I want to create light by using the "gas mantle" approach.  "gas
> > mantle".
> >
> > An incandescent gas mantle, gas mantle, or Welsbach mantle is a device
> > for generating bright white light when heated by a flame. The name
> > refers to its original heat source, existing gas lights which filled the
> > streets of Europe and North America in the late 19th century, mantle
> > referring to the way it was hung above the flame. Today they are still
> > used for portable camping lanterns and pressure lamps. [edit] Mechanism
> > They work by utilising the heat of a flame, in modern portable
> > applications produced by using kerosene or liquified petroleum gas, to
> > heat them up to around 1000 degrees celsius. At this temperature, they
> > are sufficiently hot to radiate an intense white light as a consequence
> > of the spectral lines of rare earth elements in the mantle. The light is
> > not produced through black body radiation, since the temperature is too
> > low to generate white light.
> >
> > Modern mantles are made of ramie-based artificial silk or rayon. When
> > the mantle, a small net bag, is attached to the lamp and used for the
> > first time, the heat burns away the bag's cellulose and converts the
> > in-soaked rare earth nitrates into a rigid, but very fragile, metal
> > oxide structure.
> >
> > Since thorium is radioactive......
> > (end of quotation.  Much more info is there.)
> >
> > Now for my questions and project:
> > I want to create light by using the "gas mantle" approach.  Seems like
> > I need to
> > get about 1000 deg C heat (direct flame) to a mantle.
> >
> > Is there any wick mechanism that can yield such heat?  What would be
> > the fuel? Can alcohol accomplish that heat (because I have invented a
> > nice alcohol burner
> > that vaporized the liquid and can send the alcohol vapor as little jets
> > (call them point-type "wicks?) in any configuration that is specified.
> >
> > I have tried this with a very rudimentary arrangement with a bag-type
> > mantle, and only got small areas to glow for short times.  I think part
> > of the "trick" is to get the gases to burn right at the position of the
> > mantle.
> >
> >  I simply want to give mantle-light via alcohol fuel to a billion
> > people, or more.
> >
> > I hope each of you will respond.
> >
> > Paul
> >
> >
> >
> >
> > --
> > No virus found in this outgoing message.
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> > 01/02/2007 14:28
> >
> >
> >
>
>
>
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