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Dear Paul,<br>
<br>
Crispin, of course, was speaking in relative terms. If you have a
mechanical "injection" system of some kind, there would probably be
enough motive force to mechanically break up bridging, especially if
the fuel flow is upwards or from the side.<br>
<br>
regards,<br>
Ron<br>
<br>
P.S. Crispin, this seems quite encouraging. Wondering, however, how
they are dealing with the filtering residues and waste.<br>
<br>
<br>
<div class="moz-cite-prefix">On 02.11.2012 06:04, Paul Olivier
wrote:<br>
</div>
<blockquote
cite="mid:CAOreFvZFoXL=vvZkb+DUjWGhgTnhhhPMvu=KRR4DOp4e8RiAHg@mail.gmail.com"
type="cite">Crispin,<br>
<br>
Rice hulls do not flow easily.<br>
They are notorious for bridging.<br>
<br>
Paul<br>
<br>
<div class="gmail_quote">On Fri, Nov 2, 2012 at 10:26 AM, Crispin
Pemberton-Pigott <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:crispinpigott@gmail.com" target="_blank">crispinpigott@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Dear
Gasifying Friends<br>
<br>
I just stopped at a rice milling plant that is about 20 km
outside Battambang. It processes about 1.9 tons per hour. It
is all flat belt driven and a lot of it is made of wood.<br>
<br>
The power plant is an internal combustion engine of about 200
HP. It runs on gas. The gas is supplied by a rice hull
gasifier at the back of the building where there is literally
a mountain of rice hull.<br>
<br>
The gasifier looks quite modern and operates in a way that is
day-and-night continuous. The rice hull is fed into the
vertical reactor by an auger. The reaction zone position is
not exactly constant but is maintained within certain limits.<br>
<br>
The ash/char is dropped off the top into a shallow pond to
quench it.<br>
<br>
I see no reason why a small stove could not be operated in the
same manner: TLUD with episodic feeding from below via a
plunger of some sort. Rice hull flows easily. If the primary
air control is adequate a range of 1 to 4 kW would be perfect.<br>
<br>
If anyone is interested I took pictures of the whole gas
system and power plant.<br>
<br>
Regards<br>
Crispin at km post 271 outside Battambang<br>
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<br>
<br clear="all">
<br>
-- <br>
Paul A. Olivier PhD<br>
27C Pham Hong Thai Street<br>
Dalat<br>
Vietnam<br>
<br>
Louisiana telephone: 1-337-447-4124 (rings Vietnam)<br>
Mobile: 090-694-1573 (in Vietnam)<br>
Skype address: Xpolivier<br>
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