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Alex,<br>
<br>
Yes!! Congratulations on the accomplishments!! You show
pre-mixing of pyrolytic gases with air (that contains O2), but at
such a speed of gas flow that the flame cannot get down to the level
of the entrance of the secondary air, resulting in blue flames.<br>
<br>
This leads to some questions. Some are clearly for you to tell of
your experiences. Others are suggestions of what other people
could do if they wanted to get involved in replication. There are
some variables (device characteristics) that are not stated, so this
is not yet something that a casual observer would do without further
understanding.<br>
<br>
1. Is you unit with forced primary air? Please describe. If not
with forced primar air, is there additional riser (chimney) above
the zone of ignited gases?<br>
<br>
2. Is there any turn-down capability? And if turn-down of primary
air does occur, we would expect the zone of the ignited gases to be
lower in the funnel, right? <br>
<br>
3. What might happen if there was forced secondary air?<br>
<br>
4. If a flame/spark was introduced at the point of the entry of the
secondary air, what would happen? ...<br>
a. a yellow flame upward in the funnel?<br>
b. extinguished spark/flame (that is, no ignition)?<br>
c. the flame goes up to the top and becomes blue without any flame
lower down?<br>
<br>
5. How do you actually ignite the pre-mixed gases? That is, when
and where do you first ignite the gases that were shown in the
video?<br>
<br>
6. Please comment on extending the narrow (2 inch diameter) section
so that the blue flame would be even further from the entrance of
the secondary air. How far? And if the diameter was even
smaller, could the length be even longer?<br>
<br>
7. Have you experimented with sending the pyrolytic gases a longer
distance before the entry of the secondary air?<br>
<br>
VERY interesting!!!!<br>
<br>
Paul<br>
<pre class="moz-signature" cols="72">Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
Email: <a class="moz-txt-link-abbreviated" href="mailto:psanders@ilstu.edu">psanders@ilstu.edu</a>
Skype: paultlud Phone: +1-309-452-7072
Website: <a class="moz-txt-link-abbreviated" href="http://www.drtlud.com">www.drtlud.com</a></pre>
<div class="moz-cite-prefix">On 9/29/2016 12:03 PM, alex english
wrote:<br>
</div>
<blockquote
cite="mid:CA+6hwOrRcbyOTXw6Cdo53jK5sXER-_9Wom2gX4779ngFPzYw5Q@mail.gmail.com"
type="cite">
<p dir="ltr">Paul,<br>
See below for a link to a picture. <br>
The gasses rise through a 2 inch diameter pipe which draws from
a 12 inch diameter fuel chamber. Secondary air is introduced
tangentially below the smooth funnel which expands to 6 inches.
The picture shows that the high heat from the flame affects only
the top of the funnel. So there is an 8 inch + distance where
premixing occurred and velocity exceeds the flame speed.</p>
<p dir="ltr"><a moz-do-not-send="true"
href="https://goo.gl/photos/GB9PMaf6dX3n8cQ78">https://goo.gl/photos/GB9PMaf6dX3n8cQ78</a></p>
</blockquote>
<blockquote type="cite">
<div>See video by Alex:<br>
</div>
<div>Here is a recent video of my premixed blue tlud-gas flame.
Its all geometry, no obstruction.</div>
<div><a
href="https://www.youtube.com/watch?v=jnV1e60NTss&feature=youtu.be"
target="_blank">https://www.youtube.com/watch?<wbr>v=jnV1e60NTss&feature=youtu.be</a></div>
</blockquote>
<br>
<blockquote
cite="mid:CA+6hwOrRcbyOTXw6Cdo53jK5sXER-_9Wom2gX4779ngFPzYw5Q@mail.gmail.com"
type="cite">
<p dir="ltr">Alex</p>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
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</blockquote>
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