Tom,
Did you see the fuel? I had understood, from a phone call with them,
that the basic spec for their condo heating unit in Victoria was 3"
minus but when I peered in the window there last year it looked like
1" or 3/4" minus.
Alex
On Monday 25/06/2012 at 10:53 am, Tom Miles wrote:
>Hi Tom,
>This looks very interesting project. Can you please share project
report or any details of configuration? What have you been thinking
for gas clean up and tar >elimination?
I can’t say more than what they have presented to the public. Some
of the details are “patent pending.”
Look at slide 3 of their UBC project profile:
http://www.nexterra.ca/PDF/Project_Profile_UBC_20120326.pdf
You’ll see that they:
1. take the low temperature gas from the gasifier,
2. heat it with waste heat from cracked gas,
3. burn the heated gas enough to reduce tars through partial
oxidation,
4. cool the gas,
5. filter it,
6. then they cool and condense the gas before going to the
engine.
These are steps they have developed over the last several years for
various industrial heat applications, and at 250 kWe at their pilot
plant for 3,000 hours. They appear to have met their targets for gas
cleaning. At the Pacific West Biomass Meeting in San Francisco in
January they showed photos of their engine and oil inspection data for
the 250 kWe genset after 2814 hours.
The engineer responsible for the operation of their engine at UBC has
significant experience with GE Jenbacher engines for a variety of
fuels and applications. He is absolutely confident about the
cleanliness of the gas and the expected low maintenance on the engine.
“Seeing is believing” in this business so we will soon find out.
The system just has to run, and run, and run. . .
Tom
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