[Stoves] [biochar] TLUD fired BBQs & pizza oven

Paul Anderson psanders at ilstu.edu
Mon Nov 19 07:14:09 CST 2012


Erich,

Please repost or send a link about the patio heater conversion to a 
TLUD.   I missed it the first time around.   I am only on the 
yahoogroups list.    And I added the Stoves listserv also.

Hans, keep up the good work of putting TLUD heat to great uses!!!

And bamboo as a TLUD fuel is a topic that merit more and more 
attention.   It would be useful if someone could collect, digest, 
summarize, list or whatever about bamboo as TLUD fuel and as biochar.

Paul

Paul S. Anderson, PhD  aka "Dr TLUD"
Email:  psanders at ilstu.edu   Skype: paultlud  Phone: +1-309-452-7072
Website:  www.drtlud.com

On 11/19/2012 1:31 AM, Erich Knight wrote:
>
> Hi Hans,
>
> I posted about your patio heater conversion to a TLUD previously on 
> this list, the pizza oven is a great addition.
>
> On the pizza oven, did you calculate the linear feet of 1/2 inch 
> copper tubing necessary for this water jacket heat takeoff?,
> I can't wait to see what sort of performance you get and the 
> application you put the hot water to.
>
> I've always wanted to see someone experiment with brazing such a water 
> jacket onto the upper barrel of a Jolly Roger Oven.
>
> Looking forward to your next post,
>
> Erich
>
>
>
> On Sun, Nov 18, 2012 at 7:49 PM, Hans Erken <hans at earthcare.com.au 
> <mailto:hans at earthcare.com.au>> wrote:
>
>     I have been lurking here for a while and it is time introduce
>     myself to this group properly so that later when I give an opinion
>     or ask for advice people will know where I am coming from.
>
>     I have been growing bamboo for about 30 years and it was the waste
>     in the annual burning of trash generated from harvesting,
>     propagating and thinning groves and clumps that first got me in to
>     thinking about utilising this material to make biochar.  At first
>     I made heaps of char by just putting our clean-up fires out early
>     by quenching when the flames have died down and there is a pile of
>     char and ash. All the waste heat got to me and so for some years
>     now I have been concentrating on cooking devices.  I started with
>     little tin can stoves progressed up to my present TLUDs.
>
>     It is about time I shared with this group the fun I’ve been having
>     developing TLUD BBQs and now a pizza oven. About a year ago I
>     developed a very usable TULD design based on recycled materials
>     including:
>
>     ·*stainless steel stock* pots as reactors,
>
>     ·*steel mesh* provides space for secondary air, a mount for the
>     concentrator plate and something to hook onto when hot
>
>     ·*100 Lt drum* serves as stable stand for cooking devices, modded
>     weber kettles, hot plates, slabs of granite etc. and container for
>     management of the secondary air.
>
>     ·*Stainless steel flue pipe* – forms an internal chimney.
>
>     You can see these components and the modified the Webber kettle
>     *here
>     <http://www.flickr.com/photos/cheap-thrillz/8034974018/in/set-72157629434981297/>*
>     and on the following photos in the set. This TLUD design has been
>     working mostly very well.  There are issues with excessive soot
>     with certain combinations of reactor diameter and chimney height
>     and fuel.  I have certain sizes that work very well and I am
>     experimenting with ways to increase the cooking heat without
>     increasing soot.  Fan forcing the primary air seems to do the
>     trick  and so does increasing the chimney height.
>
>     Anyway, after using this TULD for smoking fish and BBQs for a year
>     I thought it time to take it to the next level and make an oven
>     fired for below with a TULD.  It took me a couple of months to
>     build but now we have been enjoying the fun part of making pizzas
>     and optimising the design. The purpose of the oven is not just to
>     cook pizzas and food but also to experiment with controlled
>     pyrolysis.   I have been trying to pyrolise pieces of bamboo in a
>     way that they retain their shape so they can be used as pots for
>     plants and even ornaments that will help deodorise and dehumidify
>     in the home.  So far my attempts have been too hot and cooling off
>     too fast so the bamboo is distorting.  After I have more
>     experience with the Pizza oven I am hoping to achieve better
>     control of the heat.  Earlier this year I participated in a
>     workshop with Steven Joseph and I now also want to try to make low
>     temperature biochar mineral complexes and I think my oven might be
>     a suitable device to make it in.
>
>     This is still very much a work in progress and there is always
>     more to perfect.  In the last few days I have made a low profile
>     trolley to easily slide the TULD in and out from under the oven, a
>     new fan with speed controls and new oven door using a perlite and
>     refractory cement mix.  If it turns out strong enough, it will be
>     lighter, easier to use and shield some of the heat at the door.
>
>     You can see the whole set of the pizza oven project photos *here
>     <http://www.flickr.com/photos/cheap-thrillz/sets/72157631642405757/show/>*
>      There is a link on the page for slideshow mode which displays at
>     a full screen resolution.  There are other biochar related sets to
>     look at as well *here
>     <http://www.flickr.com/photos/cheap-thrillz/collections/72157629070062516/>*
>
>
>     Regards
>
>       Hans Erken
>
>        PO Box 500 Maleny  Qld  4552  Australia
>        Ph: 07 5327 4096
>
>     ec_banner-350 <http://www.earthcare.com.au/>
>
>
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