[Gasification] Fluidyne Update Shasta Class 2

doug.williams Doug.Williams at orcon.net.nz
Fri Aug 9 23:21:06 CDT 2013

Hi Gasification Colleagues,

After a very busy month, the team at CalForest Nurseries in California have now almost finished the hot water boiler assembly, and the newly improved version of the Cyclomix combustion chamber tested on the Shasta 2 gasifier. They were very excited at the performance during the 7 hour test runs, so rushed out a video that we can all see  at http://youtu.be/hZ25Fs7n1rM.   It's a bit dark, so the gasifier is not visible.

The emissions were roughly checked using the Testo gear, but it was really to hot for the probes (1,200C), so the reading of 20ppm for CO and Nox 60 ppm mentioned in the voice over, is not officially verified. What appears to be the flame sticking out of the chamber end, is mainly glowing exhaust gas with an air shield around it as it exits into the free air. Once the boiler and stack are added, the installation will be much safer to run in the tinder dry conditions, and higher gas outputs will investigated.

During this next month, the boiler water test circuit will be set up, and it will then be ready for immediate extended operational testing. The photo of the boiler during assembly provides a better idea of how these systems are made, which are a tribute to their foundry casting skills.

Shasta 1 is currently being stripped down for the first time in a year, and we can now see how even small amounts of fines in the fuel affect the internal surfaces. Fines usually carry siliceous material, and this melts in the high temperature reducing atmosphere and can agglomerate. Nothing new in this observation, but it does refresh ones need to know why and how these deposits can form in all the variations of gasification technologies.

Hope this may be of interest.

Doug Williams,
Fluidyne Gasification.
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