Well put, as usual, Doug. For those who are new, Doug is one of the longest-standing and most reliable resources that the worldwide Gasification community has to rely on for reality-based perspectives.
Thomas Deerfield, President Dalson Energy, Inc. Anchorage, Alaska (907) 277-7900 Renewable Energy Solutions Energy Efficiency & Conservation Biomass Specialists Consulting & Project Coordination Dalson Energy, where evolution is valued over predictability. On Jul 5, 2012, at 11:00 AM, [email protected] wrote: > Send Gasification mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Gasification digest..." > > > Today's Topics: > > 1. Re: Identifying and fixing technical and commercial > roadblocks to commercial small-scale CHP gasifiers (doug.williams) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 5 Jul 2012 18:19:15 +1200 > From: "doug.williams" <[email protected]> > To: "Discussion of biomass pyrolysis and gasification" > <[email protected]> > Subject: Re: [Gasification] Identifying and fixing technical and > commercial roadblocks to commercial small-scale CHP gasifiers > Message-ID: <7C98EDEDCDDD4AF79AD7548BA30C4CDA@dougspc> > Content-Type: text/plain; charset="iso-8859-1" > > Hi Gasification Colleagues, > > I must say I have enjoyed the recent discussions initiated by Tom Miles, that > has bought to the surface, some of the experiences which as manufacturers of > gasifiers, we face in the market place. Other than those who are only just > discovering gasification, enthusiasm to use the technology in a market > dominated by fossil fuels, is less than encouraging, but as addicts of > gasification, I guess that we believe in what we do, at least, most of the > time (:-) > > To dwell on the negatives however, doesn't help us to answer those asking > questions to arrive at the right or appropriate answers. While we can point > to certain successes, or technical achievements at all levels of gasified > applications, the development work to interface gasifiers in commercially > visible installations, still needs vigorous unbiased scrutiny. Not every > thing that whistles and shines, no matter who makes it, can be proof that it > works as it should. > > I'm intrigued by Colin's question of how long should a gasifier be tested > before declaring it commercial, because the reply depends on who's asking the > question, consultant or manufacturer. Each have their own set of > responsibilities. Insurances on which your guarantees may rely, especially > Public Liability, may place limitations on conditions of supply, so the > market you need, may have no protection if outside of the country of > manufacture. As you add the liabilities that may accumulate as a condition of > supply, the "testing period" needs to cover all those things that could > invoke any financial penalty clauses. > > For what it is worth, drawing from our own commercializing programme begun in > 1984, we sent the same design of gasifier to Fiji, Malaysia, South Africa, > and Maine USA. In the differing environments of temperatures and high > altitudes, we had to test for a base line for performance that was consistent > across all conditions, more a test of our finances than that of the gasifier. > That took two years alone, but worth the effort not to have any nasty > surprises in the remote Highlands of Central PNG. > > If you add to this a two thousand hour engine test conducted by Listers NZ, > before arriving at the testing of the final design, you may get some idea of > just how much time based experience is needed. Short cuts cost money, usually > somebody else's! Shiny nuts and bolts cannot fix a flawed philosophy of gas > making, but many with questions, have little appreciation of how > environmental factors can affect gasification behavior. It's not only about > how many have been supplied, but tested performance across the conditions > that limit their reliability. You just cannot do all this in the cloistered > protection of a home base. > > Hope this may be of some help Colin. > > Doug Williams, > Fluidyne Gasification. > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.bioenergylists.org/pipermail/gasification_lists.bioenergylists.org/attachments/20120705/839aafa6/attachment-0001.html> > > ------------------------------ > > _______________________________________________ > Gasification mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ > > > > End of Gasification Digest, Vol 23, Issue 5 > *******************************************
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