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Post by canyon on Aug 14, 2008 9:54:52 GMT -8
Anyone have a good idea for burning wood chips in a rocket stove? A guy on another forum has access to large amounts of free wood chips from a landscaping company and wants to use it for his heat source. This got me thinking... I have lots of alder lining my road that constantly need cutting back (2 miles of tractor trail) and I recently revived a little 12 hp chipper. Drying the chips would be one of the biggest issues I think. I can't help but think of all of the free chips available from good hardwoods in many urban areas as well. Anyone?
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Post by Donkey on Aug 14, 2008 11:30:05 GMT -8
Sure, why not?? The feed would need to be modified somewhat. Perhaps a grate to keep the chips elevated slightly for airflow all around. The bio-energy lists site has a lot of info on various types of stove, burning many various fuels. They have quite a bit on cooking rocket stoves, actually their focus in on cooking stoves of all kinds. But It seems that there is quite a lot in the other stove types that can be applied to rocket stoves. My (personal) attention goes to the gassifier info with an eye towards re-applying back to rocket stoves.
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Post by malton on Apr 29, 2015 21:41:38 GMT -8
canyon i know this is and old post , but did you ever get any where with a wood chip rocket stove? im currently working on one. i have had some success. but need to try another feed/ burner ?/ thx mike
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Post by aparker on Apr 30, 2015 7:02:58 GMT -8
Malton, Alex English developed a pellet/chip burner that might meet your needs. Do an internet search for "alex english stove". You might also try contacting him directly.
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Post by malton on May 4, 2015 10:42:37 GMT -8
aparker i looked but didnt see much ?? or what i saw wasnt clear
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Post by aparker on May 4, 2015 13:21:26 GMT -8
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Post by Hermit on May 20, 2015 7:30:14 GMT -8
Hi Guys only new here so be gentle. I worked for many years at a company where we burned our own wood chip in a boiler. Clearly the timber would be better dry but we did not have the luxury so the timber was wet as. The boiler was feed automatically to a series of cast iron stares in the fire box which the chip would move down as it burnt. The incoming air velocity would dislodge the chip on each stair which help agitate and dry the wet chip. Although an easy process i imagine it would be hard to scale down and still be reliable in an unattended operation. Would have a chance if the chip size was small. The pellet fuel would feed better with less birds nest at the intake. If anyone has questions about that particular design feel free to ask. Cheers
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Post by malton on May 20, 2015 14:41:59 GMT -8
hermit do you have any pics? if not what about a drawing. im a pic kinda guy. thanks !!
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Post by Hermit on May 21, 2015 21:01:37 GMT -8
Hi Malton, sorry i would have to dig deep to try to find pictures. Have pretty good memory so what part of the system are you interested in.? The feed system, the fire steps, boiler design, etc. We were making vernier at the time from pine logs which were softened by steaming. So all of the round up from the lathe would travel by conveyor to a chipper and then to a chip bin for use in the boiler. The timber was dripping wet so is a wonder it burned at all but was successful. It was not what you would call zero smoke operation if you know what i mean. If the timber was dry it would have been i think. We had the ability to force dry the chip but that became a risk in an industrial environment when you are talking about tons of warm dry chip material. Regards Hermit.
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posey
New Member
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Post by posey on Dec 21, 2016 19:10:34 GMT -8
HI GUYS, NEW MEMBER.
I HAVE BEEN WORKING W/ ROCKET STOVES FOR ABOUT 2 YEARS. I HAVE BEEN USING ALL STEEL CONSTRUCTION SO THAT I COULD LOOK A BURN PATTERNS & HEAT FLOW. IN THIS AREA ( N. CENTRAL ARKANSAS ) WE HAVE A SAWMILL THAT HAS AVAILABLE WOOD CHIPS IN VARIOUS SCREEN SIZES FROM COARSE SAWDUST TO LARGE ( 1 1/2" / 2' ) CHIPS. ALL THIS MATERIAL IS FROM FRESH CUT HARD WOODS & IS NOT DRIED. USING AN 8" TUBE UNIT OF NORMAL ROCKET HEATER PROPORTIONS. I ALSO USED STEEL TO ALLOW ME TO PLAY WITH DIFFERENT LENGTH OF FEED TUBE, BURNER CHAMBER & RISER.
I HAVE FOUND COMPLETE COMBUSTION & NO SMOKE W/ SAWDUST UP TO 1" + CHIPS. CURRENTLY I AM TRYING TO FIND A SOURCE FOR SMALL DRAG CHAIN OR 3 TO 4" AUGER SCREWS TO MAKE A CONTINUAL FEEDER TO ALLOW FOR 24 HOUR UNATTENDED BURNING.
WE ARE ALSO PLAYING WITH A THERMOSIPHON SYSTEM TO HEAT 300 GAL. OF WATER FOR HYDRONIC HEATING OF A 1600 SQUARE FOOT CONTAINER HOUSE.
ANY HELP OR INFORMATION WOULD BE APPRECIATED, THANKS IN ADVANCE
BILL
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Post by Jura on Dec 22, 2016 2:59:31 GMT -8
Bill: I'd love to see the construction details for he system allowing to burn sawdust
BTW. we do not use capitalics for writting whole text.
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