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On 17/04/2012 5:00 AM, <a class="moz-txt-link-abbreviated" href="mailto:gasification-request@lists.bioenergylists.org">gasification-request@lists.bioenergylists.org</a>
wrote:<br>
<br>
Apologies, Luke. I edited the previous digest's text to make it shorter
and inadvertently left a line of your earlier message.<br>
<br>
I'd just spent the day in the country near Melbourne chatting with a
guy who runs a small sawmill using salvage logs from arborists, farms,
housing development etc We worked out roughly that he's generating
about 1500tonnes/annum of waste. He's very interested in using this for
local decentralised energy production. There's an enormous amount of
small-scale biomass assets dotted around the countryside.<br>
<br>
Whoever first gets a small-scale gasifier up that meets Knoef et al's
proposed criteria on whether or not a gasification technology is
commercial could do very well. From the IEA workshop report<span
style="font-size: 12pt; line-height: 115%; font-family: "Times New Roman","serif";">
(Knoef, Buhler
and Babu 2007, p5):<o:p></o:p></span>
<p class="Default"
style="margin: 0cm 26.1pt 0.0001pt 4cm; text-indent: -18pt;"><!--[if !supportLists]--><span
style="font-size: 11.5pt;"><span style="">1.<span
style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal; -x-system-font: none;">
</span></span></span><!--[endif]--><span style="font-size: 11.5pt;">Continuous
integrated plant operation under commercial
conditions for a minimum of 2,000 hours <o:p></o:p></span></p>
<p class="Default"
style="margin: 0cm 26.1pt 0.0001pt 4cm; text-indent: -18pt;"><!--[if !supportLists]--><span
style="font-size: 11.5pt;"><span style="">2.<span
style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal; -x-system-font: none;">
</span></span></span><!--[endif]--><span style="font-size: 11.5pt;">Plant
availability of 80% or higher <o:p></o:p></span></p>
<p class="Default"
style="margin: 0cm 26.1pt 0.0001pt 4cm; text-indent: -18pt;"><!--[if !supportLists]--><span
style="font-size: 11.5pt;"><span style="">3.<span
style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal; -x-system-font: none;">
</span></span></span><!--[endif]--><span style="font-size: 11.5pt;">Profitable
plant operation without government support;
an example is the sustainable financial support from CHP operations
with
feed-in rate for electricity and heat <o:p></o:p></span></p>
<p class="Default"
style="margin: 0cm 26.1pt 0.0001pt 4cm; text-indent: -18pt;"><!--[if !supportLists]--><span
style="font-size: 11.5pt;"><span style="">4.<span
style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal; -x-system-font: none;">
</span></span></span><!--[endif]--><span style="font-size: 11.5pt;">Plant
operation without major modifications during the
first year of commissioning <o:p></o:p></span></p>
<p class="Default"
style="margin: 0cm 26.1pt 0.0001pt 4cm; text-indent: -18pt;"><!--[if !supportLists]--><span
style="font-size: 11.5pt;"><span style="">5.<span
style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal; -x-system-font: none;">
</span></span></span><!--[endif]--><span style="font-size: 11.5pt;">Process
owners willing to specify investment and
operational costs and offer or arrange performance, service, and
maintenance
guarantees <o:p></o:p></span></p>
<p class="Default"
style="margin: 0cm 26.1pt 0.0001pt 4cm; text-indent: -18pt;"><!--[if !supportLists]--><span
style="font-size: 11.5pt;"><span style="">6.<span
style="font-family: "Times New Roman"; font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-size-adjust: none; font-stretch: normal; -x-system-font: none;">
</span></span></span><!--[endif]--><span style="font-size: 11.5pt;">Process
owners ready to offer ‘turn-key’ plants <o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<span
style="font-size: 12pt; line-height: 115%; font-family: "Times New Roman","serif";">Knoef
et al also emphasise “that the
development, optimization, and commercialization of first-of-a-kind BMG
[Biomass
Gasification] process are challenging and require substantial financial
resources” (2007, p4) and that sale of “5 or more gasification systems
of the
same gasification island configuration” is a commercial criterion
(2007, p1).</span><br>
<br>
Knoef HAM, Buhler R, and Babu S 2007. Workshop No. 1 (2007-09):
Situation Analysis and Success and Visions for Biomass Gasification
IEA. Retrieved October 1, 2009 from
<a class="moz-txt-link-freetext" href="http://media.godashboard.com//gti/IEA_BRU_11-07.pdf">http://media.godashboard.com//gti/IEA_BRU_11-07.pdf</a><br>
<br>
<blockquote
cite="mid:mailman.1.1334602867.13440.gasification_lists.bioenergylists.org@lists.bioenergylists.org"
type="cite"><br>
<pre wrap="">Message: 5
Date: Mon, 16 Apr 2012 08:27:41 -0700
From: "Luke Gardner" <a class="moz-txt-link-rfc2396E" href="mailto:lgardner@wwest.net"><lgardner@wwest.net></a>
To: "Discussion of biomass pyrolysis and gasification"
<a class="moz-txt-link-rfc2396E" href="mailto:gasification@lists.bioenergylists.org"><gasification@lists.bioenergylists.org></a>
Subject: Re: [Gasification] 1. Re: Wood Chip classificaton (Bruce
Green) Gasification Digest, Vol 20, Issue 7
Message-ID: <26AEDCF905E548B1A56E427FF3A8FA88@CrystalHP>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=response
David,
if your gonna pull my text off, pull my name off too. thanks. I agree with
your message,,,, its just not mine, the way it appears.
Luke
-----Original Message-----
From: David Coote
Sent: Monday, April 16, 2012 1:56 AM
To: <a class="moz-txt-link-abbreviated" href="mailto:gasification@lists.bioenergylists.org">gasification@lists.bioenergylists.org</a>
Subject: [Gasification] 1. Re: Wood Chip classificaton (Bruce Green)
Gasification Digest, Vol 20, Issue 7
On 16/04/2012 5:00 AM, <a class="moz-txt-link-abbreviated" href="mailto:gasification-request@lists.bioenergylists.org">gasification-request@lists.bioenergylists.org</a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">
Today's Topics:
1. Re: Wood Chip classificaton (Bruce Green)
2. Re: Wood Chip classificaton (Peter& Kerry)
3. Re: Why would you want to make heating grade woodgas?
(Peter& Kerry)
----------------------------------------------------------------------
Message: 1
Date: Sat, 14 Apr 2012 20:29:41 -0400
From: Bruce Green<a class="moz-txt-link-rfc2396E" href="mailto:clascent@gmail.com"><clascent@gmail.com></a>
To: Discussion of biomass pyrolysis and gasification
<a class="moz-txt-link-rfc2396E" href="mailto:gasification@lists.bioenergylists.org"><gasification@lists.bioenergylists.org></a>
Subject: Re: [Gasification] Wood Chip classificaton
Message-ID:
<a class="moz-txt-link-rfc2396E" href="mailto:CACGGi+g3eze8xdDCwA_i31ZkX6xfWtNCAWUiEaX9DVgyWWpp4Q@mail.gmail.com"><CACGGi+g3eze8xdDCwA_i31ZkX6xfWtNCAWUiEaX9DVgyWWpp4Q@mail.gmail.com></a>
Content-Type: text/plain; charset="iso-8859-1"
Hi all, If you really want to dry something cheap use a greenhouse. See
this technology <a class="moz-txt-link-freetext" href="http://www.parkson.com/products/thermo-system">http://www.parkson.com/products/thermo-system</a> . Bruce
Green
On Sat, Apr 14, 2012 at 2:25 PM, Luke Gardner<a class="moz-txt-link-rfc2396E" href="mailto:lgardner@wwest.net"><lgardner@wwest.net></a> wrote:
</pre>
</blockquote>
<pre wrap="">I thought about doing this as part of my research using a solar kiln. At
it's simplest this might be wheel in an open mesh side container full of
moist chip, leave for a few days, take out nice dry chip and
combust/gasify. The problem, of course, is that the chip will only dry
towards the outside of the container. Handling costs get restrictive if
you put the chip in trays and placing the chip in some kind of tumbler
involves extra expense for the tumbler and also some energy (and cost)
to drive the tumbler.
I was in Finland a few weeks ago where I was introduced to the concept
of a drying trailer where air is actively moved across a relatively
small container full of chip. Apparently this can dry the chip
reasonably efficiently. I might revisit the solar kiln idea using this
approach. As with everything in this area for a commercial operation
it's all about the cost
Cheers
David
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</blockquote>
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