12-14-2016, 12:54 PM
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#1 (permalink)
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Volvo-driving MachYeen
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Wood gas?
Has anyone built a wood gas system? 
I've been toying with powering a small tractor with a FEMA-type wood gasifier (with a cyclone and a filter system for the tar)
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12-14-2016, 01:14 PM
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#2 (permalink)
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Corporate imperialist
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What did you want to power with it?
Something like a wood stove or boiler or something like a piston engine?
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12-14-2016, 01:58 PM
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#3 (permalink)
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Volvo-driving MachYeen
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a small piston engine.
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12-14-2016, 02:10 PM
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#4 (permalink)
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Master EcoModder
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That the same idea as the coal-gas engine conversions the brits did back in the war or whenever it was?
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12-14-2016, 02:13 PM
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#5 (permalink)
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Volvo-driving MachYeen
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not only brits, a lot of countries had wood gas at the time of the war.
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12-14-2016, 02:55 PM
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#6 (permalink)
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Volvo-driving MachYeen
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the engine would be a 10-something hp engine.
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12-14-2016, 03:05 PM
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#7 (permalink)
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Corporate imperialist
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One thing I do remember is people saying that wood gas roughly cuts the engines power output in half.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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12-14-2016, 03:16 PM
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#8 (permalink)
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Volvo-driving MachYeen
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exactly. That's why I need a 10-something hp engine.
The gearing will be super-low though, as the top speed only needs to be about 9Mph. It will pull a small trailer 
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12-14-2016, 04:05 PM
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#9 (permalink)
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Volvo-driving MachYeen
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but I can't make my mind if should build a updraft or a downdraft (or a sidedraft) gasifier. The fuel is going to be very inconsistent in quality and size.
The gasifier system also needs to be small in size.
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Last edited by Fingie; 12-14-2016 at 06:15 PM..
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12-16-2016, 03:59 PM
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#10 (permalink)
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Master EcoModder
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Quote:
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The gasifier system also needs to be small in size.
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Well, there's a problem. https://www.google.com/search?q=wood+gas+ca Looking at the Images of presumably successful installations, compactness is not apparent. Most successful seems to be VW, with a 'power bulge' on the hood and the filters underneath the floor.
And if the fuel is 'inconsistent in quality and size' you could add a chipper/shredder render it consistent.
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