A char-gasifier has charcoal as its initial raw fuel.

And the resultant gases (called char-gas to distinguish it from woodgas) are primarily CO and H2 and some methane. Very clean, without the tars of pyrolytic gases.

Disadvantage (historically) is that much energy in the wood (perhap 60 to 70%) was simply wasted or worse, became polluting smoke.

But when the wood (biomass) can be pyrolyzed and the pyrolytic gases can be meaningfully used (as in TLUD stoves), now the char was made in environmentally favorable condition, without the wasted heat.

Paul

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  [email protected]
Skype:   paultlud    Phone: +1-309-452-7072
Website:  www.drtlud.com

On 1/11/2017 10:28 PM, Anand Karve wrote:
Dear Paul,
what is a char gasifier? Does it produce water gas (CO + H2)?
Yours
A.D.Karve

***
Dr. A.D. Karve

Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com <http://www.samuchit.com>)

Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)

On Fri, Jan 6, 2017 at 10:12 AM, Paul Anderson <[email protected] <mailto:[email protected]>> wrote:

    John,

    The Kalle gasifier is a char-gasifier.
    Have you worked with char as fuel before in gasifiers?

    And where are you located (and send more info about yourself and
    interests.)

    And who else besides myself, Gary Gilmore and Ken Boak have active
    interests in char-gasifiers for CHP?

    Paul

    Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
    Email: [email protected] <mailto:[email protected]>
    Skype:   paultlud    Phone: +1-309-452-7072
    Website: www.drtlud.com <http://www.drtlud.com>

    On 1/5/2017 10:26 PM, John Zander wrote:

        Greetings to everyone and Happy New Year,

        I also was saddened to see the lack of activity on this forum,
        but I am glad to see that there is indeed continuing
        interest.  I am in the process of building a Kalle gasifier to
        supply a 3 cyclinder Yanmar diesel engine, hoping to use
        sensors and microprocessors to improve efficiency and
        reliability.  Does anyone know of any existing original Kalle
        gasifiers anywhere in the world?  Any ideas and advice is welcome.

        john zander

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