Pelleting charcoal

Yep. Yep.
Your Mecc Alta gen head picture shows SAE pattern flange mounting.
Better to spend even a couple of thousand more in a compatible engine able to do this than having to friz up a pulley/belt /chain/sprockets/shaft-coupler drive system. Ha! I know this one all to well.


Steve I am not replacing anything , Just considering what I should have done . Did anyone pick up on using an escalator braking motor as a DC generator ?



I would think you would want liquid cooled engine for combined heat and power ,


Been there done all that. Just use the cheapest engine you can find that will get the job done. Use exhaust heat for a simple hot water. Go to charcoal, build a system to make charcoal and produce primary heat.

Using a liquid cooled engine for heating is very complicated and you can not use all the heat from engine, you will destroy it. The engine must maintain 165*f to maintain proper tolerance. This leaves very little for heating, you then have pumps, fans, heat loss in transfer. By the time you reclaim this heat that reclaim is lost in energy consumption of the system.


For me there is a heater connection on engine and there is an auxiliary connection on wood gas boiler . Boiler shuts down at 180 f . thermostat on engine opens at 180 f . I guess I also need to stop flow at below 180 f . If it gets there . I should also use heat from exhaust . That requires a bit more then connecting an insulated pipe I already have an excess of .


Torrefied wood pellets were among the products discussed during a Feb. 26 hearing held by the House Subcommittee on Conservation and Forests, titled “Innovative Wood Products: Promoting Rural Economies and Healthy Forests.”

Michael Goergen, vice president of innovation and director of P3Nano at the U.S. Endowment for Forestry and Communities, discussed the potential to use low-value forest material as a feedstock for torrefied wood pellets during his testimony.

During his opening statement, Goergen discussed the purpose and mission of the Endowment. “The Endowment is focused on keeping forests as forests and supporting communities that depend upon them,” he said. “I’m focused on innovation in forest products because markets bring value to forests, and we keep what we value.”

Rep. Doug LaMalfa, R-Calif., discussed the Camp Fire, the 2018 wildfire that impacted areas near Paradise, California, in the north-north central region of the state approximately 90 miles north of Sacramento. He said hundreds of thousands of trees damaged in the fire must be disposed of. “One group is looking at creating a pelletized fuel product in order to further the restoration from Camp Fire,” LaMalfa said, noting that material primarily consists of partially burned and partially charred timber. He asked Goergen about the potential feasibility of the project.

“The good news is we can make these pelletized wood fuels from really low value materials, and I think that’s a terrific option for us in some places,” Goergen said. “The problem is cost—always,” he continued, noting that it is difficult to make wood energy cost effective with fossil fuels. Torrefied wood, he said, offers a solution to that problem. Goergen showed the members of the committee a sample of torrefied wood material, noting it was produced by roasting wood in a low oxygen environment.

Goergen told committee members that the Endowment has already used torrefied biomass to fuel a coal-fired power plant for 12 hours straight. “That plant required no changes whatsoever,” he said, noting the torrefied wood is a very clean, very low-carbon intensity fuel.

Goergen also addressed torrefaction in written testimony. “Torrefaction reducing moisture, increases energy density and develops a product that stores and transports far better than untreated biomass eliminating some of the logistical hurdles that make low value biomass from restoration efforts a little more valuable,” he wrote.

The Endowment is developing a torrefaction demonstration project in John Day, Oregon, that is scheduled to begin operations this spring. In his written testimony, Goergen said the facility is the last stage in the Endowment’s and its collaborators’ efforts to commercialize the technology. In addition to proving the technology, the project is designed to help open a large-scale market for forest restoration residuals and open the door to development of additional carbon products that can be produced from thermos-chemical treatment of biomass.

Additional information on the hearing, including video replay and full copies of written testimony, is available on the House Agriculture Committee website.

It would be nice if someone talking knew or cared something about what they were legislating .
There was a law but that evidently did not mean anyone promised payment would ever receive it .

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heater connection not all unused thermocouple sensors shown

have enough of this

auxiliary connection boiler . 8 years still do not have wood gas generator working . then I will need to drain and refill hundred of gallons of non toxic anti freeze .


Glad to hear you are not replacing your 3.0L marine engine.
Your gen head shows to be an 1800 RPM version to make your 60 herz.
Direct coupled at that low of engine RPM and de-rated for wood gas you will barely make your 10-15 Kw/el.
And probably not even that running your four cylinder on only three cylinders.

I missed this somewhere back. Why not restoring full four cylinder power after your tarring recovery?


I can only use 8 Kw . ?


What Steve said, I had GM engineers help me with the Italian machine and they have all the power curves for this engine. The guy I was working with was in RnD working with GM development NG powered engines including this one.

You would be lucky to achieve 10 kW reliably running on all four cylinders. That thing is way over rated.


inverter has maximum output of 8 kw . When I start battery is fully charged , 5 minute timer before it begins to export power at low rate 2 kw . charger starts at 11 amps goes up to 150 amps . I have some failure , power still drained from battery and generator can be reconnected . End of run disconnect inverter from grid . Last time unit ran had failure of grate shaker and total clogging of restriction , should not occur where I need grate shaker to have any flow of fuel through machine .


Hmm. Yes I had hear you say that you only needed 8kW/el due to your Grid feed-in allowances.
But . . . .always oversize, over-rate for the Murphy’s who will always plague you. Or just plain in-use wear and tear power reductions. Real.

Anyhow on pole generators synchronous electrical makers they do not want power inputs evenly around a full 360 degree rotation. Under electrical load yours have four distinct grunt me past this, hurdles. Called cogging I believe. For better input needed power “smoothness” you would need one of the higher poles counts generators. Expensive.

Now on IC four stroke piston engines they only per cylinder actually produce good useable power for ~45-50 degrees of a rotation. Not 180 degrees. Not even 90 degrees. BUT a four stroke cycle is two full rotations for 720 degrees, to repeat cycle.
What this means is your four cylinder engine is only able to push-kick power out for 4 x 50 degrees of that full 720 degrees. So for 520 degrees worth of segments you are momentum of crank, pistons, rods and flywheel/gen head masses coasting along.
Single cylinder engines are notorious for the pole cycles and the engine power cycles matching/mismatching up and creating severe electrical voltage/current “flicker”.
Two cylinder was the partial old way to combat this. 3600 RPM running on singles and twins and this is somewhat covered up.
Four cylinders better.
Six cylinders better yet. Especially with 3 phase multi-pole generator heads.
Eight cylinders the fewest “best” solution. 8 x 50 degrees = 400 degrees power inputs coverage of that 720 degrees to repeat, repeat.

Seriously spend the money time and effort to get your fourth cylinder contributing back.
Steve Unruh

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Making wood chips , engine went out on wood chipper .
earlier had sprayed oil in all 4 cylinders of GM to keep it not working a while longer .
Waited hour restarted wood chipper . Running very well , shutting down after 15 minutes restarting in hour .


Why post this ?
finding success in oil made from wood ?
fail of failed biomass plan ?
Would like to find a place for tortified wood pellets
I think there has been one place found for oil made from wood

Bates College

2 Andrews Road
Lewiston, Maine 04240

Renewable Fuel Oil

We have converted our central steam plant from natural gas to a renewable fuel oil, which is a heating oil substitute made from tree offcuts. It has a greenhouse gas footprint of only 15% of heating oil, and is 100% renewable. Our central heating plant provides heating for 80% of our buildings. We are expecting this fuel switch to help us reduce Bates emissions enormously.

Fail .
The Woodbrook housing development was touted as Northern Ireland’s first major eco village. Utilizing a biomass system fueled by wood chips residents face having to fork out hundreds of thousands of pounds thanks to a housing shortfall which has resulted in a heating system that is no longer economical to run.

According to the Belfast Telegraph, just under 200 of a proposed 400 homes have been built following the collapse of building firm the Carvill Group. And to make matters worse, thanks to the current heating arrangement in place the properties have been rendered unsaleable. Residents are looking in to the possibility of switching from biomass to gas and have approached Phoenix Natural Gas to explore the possibility. However replacing a biomass system with a gas equivalent could be tricky, not least because it has never been attempted before in Northern Ireland.
This week the first full natural gas connection at Woodbrook was completed and the firm are continuing the roll-out every day until the all the connections are complete.

Only half of the 400 expected homes were built at the local development, also known as the Eco Village, after the developer went into administration. Doubts have since been raised whether the biomass plant would ever have been financially viable.

Residents faced running costs for the wood-chip fueled heating that are three and a half times those of natural gas.

Alastair Pollock, Business Development Director at Phoenix Natural Gas, said: “This was a very unique set of circumstances and Phoenix only agreed to help the residents by providing natural gas to them after lengthy one-on-one discussions with each individual homeowner, the Management company, local political representatives and legal advisers. The process of removing a biomass heating system and replacing it with natural gas is not an easy one. Since natural gas came to Northern Ireland in 1996 new build developments have almost exclusively been constructed using natural gas appliances where available.”

Residents have been in talks with Phoenix Natural Gas since August to explore the possibility of getting connected to the gas network. Residents overwhelmingly wanted natural gas as an alternative to Biomass.

A spokesman for Phoenix said that the bulk of the homes will have natural gas connections by the end of this autumn – well in advance of the core winter months.


That news indicates something really wrong in the setup, if biomass is more expensive than natural gas. Wood chips, trucking, and various hands getting their share in a complex system seems to be the issues.


In 2007 a 40 lb bag of pellets was only $1,50 Then something happen after the market crash and they never went back down.


Garry, (reading between the lines, this is only my imagination speaking…) Kind of looks like their central heating plant was poorly designed, not “scale-able” and maybe had some defects that caused the designer/ builder to bail out (bankrupt?). Then all the “fixes” fell back on the homeowner’s association, which at 1/2 the planned homes, didn’t have deep enough pockets to finance the repairs / redesign / maintenance work. Then the issue became: how do we keep warm next winter? We need a backup system at the least! Natural gas was a good lifeline.


This is out of their brochure , said they used local willow . I think MikeR had right answer .


This is a natural gas combined heat and power home system . Steve posted about similar system but I did not find his post . This one probably does less and cost more .