GAS-L: Gasifier Annual Use and Engine Life

["Tom Miles" <tmiles@trmiles.com>]

Paul,

Thanks for the update and kind regards to Gus, who has inspired many of by his
example.

During a visit to his farm in 1985 (Tom Reed and other attendees from a conference,
Forest Products International, hosted by the South African CSIR) I were impressed by
the fact that Gus had generated power with a gasifier for more than 1200 hours. At
that time the longest monitored testing that I knew of was by TPS (Sweden) at 900
hours. The requirement for most CHP systems would be 4,000-6,000 hours per year.

What would Gus, or others on the list, consider to be a reasonable annual operation
and engine life for a 200 kWe system?

The answers of course will be subject to the degree of gas cleaning as Doug Williams
and others have commented. See
http://www.repp.org/discussion/gasification/200208/msg00032.html and Fluidyne Website
>Engine Tables www.fluidynenz.250x.com and
http://www.repp.org/discussion/gasification/200201/msg00004.html

So far on this list some have quoted manufacturer's nameplate periods like 10,000
hours between overhauls. What has the practical experience been with annual operation
and engine life for spark ignition and dual fuelled diesel engines?

What are the annual use and engine life targets for companies building gasogensets?

Regards,

Tom Miles


----- Original Message -----
From: "Paul S. Anderson" <psanders@ilstu.edu>
Sent: Friday, October 25, 2002 2:58 PM
Subject: GAS-L: Great persons in gasification - Gus Johansson


> To have breakfast with Gus is an educational experience.  He has first-hand
> stories about motor vehicles in Europe running on gasification during World
> War II.  For example, because of tars, etc, in the gases, the internal
> combustion engines could only run for about 500 hours before needing a
> complete overhaul, if not actual rebuilding of key parts.  That helped me
> understand why gasification vehicles did not become a success after that war.





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