[Gasification] gas quality and engine lifespan?

[Ken Calvert]

Dear Doug, David, Kevin, etal,  I bow to the superior experience of Doug, in 
terms of the actual reasons for the lubrication problems that have been 
present in the past.  It may well have been fine particles, because as 
stated at that stage it was charcoal gasifiers that were being used and it 
was only dry filtration through a very tightly woven cloth tube filter 
system.
   I am aware that  gas engines have run very long hours and we have also 
been there done that with a commercial BTG gasifier burning wood billets. 
However,
I still stand by Cliff Pederick's story as to how he got a 10,000 mile run 
round and round some race track in Perth W.A. by taking out the oil control 
rings.
----- Original Message ----- 
From: "doug.williams" <Doug.Williams at orcon.net.nz>
To: "Discussion of biomass pyrolysis and gasification" 
<gasification at listserv.repp.org>
Sent: Monday, July 09, 2007 7:52 AM
Subject: Re: [Gasification] gas quality and engine lifespan?


> Hi Gasification Colleagues,
>
> Again this discussion about producer gas in engines, and it's effect on 
> oil
> are being discussed, all due to a question taken out of context with the
> understanding of the writer. If the best you can do is use clapped out
> engines and remove oil rings, then go to it.
>
> If you want an answer that was posted for this forum on the subject when 
> it
> was last discussed, them check the Fluidyne Archive 
> www.fluidynenz.250x.com
> Scrolled down to Producer Gas,  Engine Oil, and Soot, where you will find 
> a
> basic explanation of what happens.  We have also had long discussions 
> about
> engine life, and the reasons why cold clean tar, and moisture free, 
> producer
> gas is the only option for reliability.
>
> If you want to prove any points to show your dedication to this 
> technology,
> start by making a gasifier that has no condensable tar, then try and make 
> a
> good engine work on that.
>
> Doug Williams,
> Fluidyne Gasification.
>
>
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