Hi Doug, thank you for the information, and yes I remember the "Eco-Puck" ... I was hoping to not go this route, however times have changed, and wood gathering is somewhat harder on the back, than it was even a year ago, was simply looking to other options, that even though more costly on the ROI side, would be easier on the body.
I think you (and tom) have snapped me back into reality. we will have to see. thanks for the great information. Greg <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Tue, Dec 26, 2017 at 3:18 PM, Doug <[email protected]> wrote: > Hi Greg, > > Tom has covered the issues of straw gasification, and certainly liquefied > ash, and sintered clinker are an issue not easily overcome if you just want > to make gas. The issue always remains in that raw straw can end up passing > through, to then add their condensible volatiles to the end gas. > > You may remember that we cubed flax, straw, and hemp for trials in > Winnipeg using a rather big vertical rotary machine. It was at least a > solution to being able to get the volumes reduced, but for sure > conventional gasifiers of most designs just do not incorporate the > appropriate factors to control the low velocity air and fast moving fuel. > If you hold the fuel it will slag, so to me, the first thing I would do is: > > 1. Establish first how thick the bed can be with your cubed fuel on a > horizontal high porosity grate plate (or other). > > 2. With various flows, I would want to see if I could function with the > thinnest bed possible, allowing for the lowest air velocity, and minimal > ash problems. > > 3. If you do this in the open air, watch the smoke generation and time the > colour changes, you know it explains the state of pyrolysis. > > Downside. > > 1. Cubing is high energy consumption adding to fuel cost, unless you can > generate power from the gas you make. > > 2. The output char, if that is the target, will need very careful airtight > storage, plus a way to move it about in considerable volume. Very hazardous > to health. > > 3. You still have to design on a scale that your fuel test information > will set in "stone". > > Hope you keep us informed on your progress as I am sure others will have > more to contribute (as we do!) > > Regards, > > Doug Williams. > > Fluidyne. > > > On 27/12/17 05:57, Greg Manning wrote: > >> Greetings Doug and list, >> >> I hope all is as well as can be as we all age like fine wine. >> >> In the interest of the original post about straw gasification, I am going >> to attempt a sample run in my latest unit out of curiosity, I think going >> the route of cubed wheat straw would be the way to go, what are your >> thoughts on this ? >> >> Greg Manning >> >> >> > > _______________________________________________ > 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/gasificatio > n_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ >
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