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<p><font face="Liberation Sans">Hi Rolf,</font></p>
<p><font face="Liberation Sans">It looks like I cannot send drawing
or photos directly through the Gasification List, so this last
post was lost with all the written comment. I even lost my copy,
so probably I pushed keys before loading to file was complete.
Computers and I are not a good combination):-(<br>
</font></p>
<p><font face="Liberation Sans">The outlet diameter is shown as
800mm which can easily be reduced if necessary by placing a
brick over part of the hole.</font></p>
<p><font face="Liberation Sans"> There is no proportional
calculation, just using a rough brick size. The height of the
combustion chamber shown at 800mm is just to form a fairly large
space with lots of vertical bricks to allow the gas to make them
incandescent. Think of the bricks doing the heating of the
moving exhaust CO2 into that high temperature required. If the
combustion is not completed, my guess is that your tile stack
will heat unevenly. A lot of skilled observation will be
required, and your ceramist technician will need to learn a
little about how to get the best out of this technology.<br>
</font></p>
<p><font face="Liberation Sans">A tangential entry of the gas would
give you surface contact with the bricks, but there is a need to
slow the gas down so that there is time to get better energy
exchange into the brick. You can stand the vertical combustion
chamber grill support bricks spaced away from the wall in a
round kiln. Possibly your advise will be not to bother with the
grill, but you will have opportunity to try out the best
configuration once you start to do a few tests.</font></p>
<p><font face="Liberation Sans">I will try to find time to look at
the Das gas maker, but hope Paul can confirm the key parameters.
Possibly others might contribute?<br>
</font></p>
<p><font face="Liberation Sans">My suggestion is to keep it simple
(KIS)<br>
</font></p>
<p><font face="Liberation Sans"> </font>Doug W.<br>
</p>
<br>
<div class="moz-cite-prefix">On 11/01/17 00:35, Energies Naturals
C.B. wrote:<br>
</div>
<blockquote
cite="mid:20170110123525.483310b7afb78d0c8da153a1@gmx.de"
type="cite">
<pre wrap="">Thanks for the drawings,Doug.
Questions:
Do you mean 800 mm outlet diam? Or should it be 80?
And the proportions of the brick base grill >(also 800)in relation with the kiln's internal height of 1m (1000)?
I guess you want the bricks inside the brick base to act as turbulators and heat storage for shure ignition, sure?
What about the idea of a swirl chamber, in case the general shape was round?
I have taken contact with ceramist technicians for further advice.
Rolf
On Tue, 10 Jan 2017 06:00:07 +1300
Doug <a class="moz-txt-link-rfc2396E" href="mailto:doug.williams.nz@gmail.com"><doug.williams.nz@gmail.com></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Hi Rolf,
Please make sure you send these via the Gas List.
I am not sure that a round kiln will evenly heat a square test tile, but
I have no experience of firing ceramics.
I would recommend bottom entry through a brick base grill.
The internal height of the kiln has already been specified by Pilar, and
the rate of heat soaking of the kiln and ceramic load is controlled by
the oxidation and reduction time. These are details that are not in my
files from previous discussions.
Doug.
On 09/01/17 22:23, Energies Naturals C.B. wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Thanks Doug,
we are getting closer to a design.
I had thought about round shape, easier to contain the tensions and less surface area.
Do you recommand gas entry from above?
Rolf
On Mon, 9 Jan 2017 20:52:28 +1300
Doug <a class="moz-txt-link-rfc2396E" href="mailto:doug.williams.nz@gmail.com"><doug.williams.nz@gmail.com></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Having trouble with attaching the photos via the list.
Doug.
-------- Forwarded Message --------
Subject: Re: [Gasification] Getting both heat and char . chip boiler
with down-up gasification !
Date: Mon, 9 Jan 2017 20:28:00 +1300
From: Doug <a class="moz-txt-link-rfc2396E" href="mailto:doug.williams.nz@gmail.com"><doug.williams.nz@gmail.com></a>
To: <a class="moz-txt-link-abbreviated" href="mailto:gasification@lists.bioenergylists.org">gasification@lists.bioenergylists.org</a>
Hi Rolf and Paul, Colleagues,
I found these two photos in my files, and I do have others (not found)
showing the changes in combustion as the kiln heats up. Taken about late
1985, you are seeing the first Cyclomix burner in action, after Jack
Humphreys and I presented it's design at the 2nd International
Gasification Conference in Bandung, Indonesia (1985), along with our
2,000 hr diesel duel fuel conversion tests results in association with
Lister NZ. I have to tell you that the memory of events in digging out
these old photos of Fluidyne development which number in hundreds,
bought back the painful lack of knowledge and difficulties of working in
isolation at the bottom of the World.
The enclosed photos of the kiln or combustion chamber as we knew it, had
vertical entry from the top, and after the internal brick work began to
glow, the heat gradually crept out of the bottom opening as you see
here. We used it to melt anything we had, mainly aluminium and glass
bottles, but it's practical value was to demonstrate that Gasification
could be used for high temperature applications. Before this, we built
horizontal brick combustion chambers for use in timber drying kilns, and
in these we used target bricks as Paul refers to, so that the gas was
forced to burn up against a refractory brick surface. We had three
timber kilns operating over two years, then Natural Gas came by the door!
Doug W.
On 09/01/17 08:14, Energies Naturals C.B. wrote:
</pre>
<blockquote type="cite">
<pre wrap=""><a class="moz-txt-link-freetext" href="https://www.youtube.com/watch?v=cF1Ki-ngFjE">https://www.youtube.com/watch?v=cF1Ki-ngFjE</a>
Never seen before in heating boilers,clever!
Rolf
On Wed, 4 Jan 2017 13:33:30 +1300
Doug <a class="moz-txt-link-rfc2396E" href="mailto:doug.williams.nz@gmail.com"><doug.williams.nz@gmail.com></a> wrote:
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