Wood car - A car that runs on wood


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  How the gas producer system works

We use a technology that is called producer gas. The technology was primely used during World War II when there were shortage of oil in Sweden.

Fueling up in Orsa Finnmark fare away from civilisation

Simply explained
There is a uncompleted burn of the wood in the producer. This means that there is too little air added to the process so the wood smoulders at high temperature. The wood then come apart to the gas carbon monoxide, witch you then purify and run the engine on. The engine is a usual otto engine that has a gas mixer instead of a carburator.

The car with the new filter unit

What things are sitting on the car??
We'll start at the rear! The black barrel to the right is the producer. You pour the wood into the producer and light the fire there.

In the middle is the cyclone filter. There the gas spins around so that ashes and some carbon slings out and falls down to the canister. The gas then continues up through the high pipe and down to the fine filter.

In the fine filter small particles get caught. The fine filter is made of fiberglass that sustains high temperature.

The front of the car

Wood contains water and when you make gas of the wood the water becomes steam. In the cooler (the red unit with lots of small pipes) the gas is cooled so that the steam becomes water again. The water then pours down to a square canister underneath the cooler.

When you start a gas producer you need to get a high temperature before you can run the engine on the carbon monoxide. Thatīs why there is a start fan (the black round thing to the right). Usually we use the start fan 2-10 minutes before we close the valve and start the engine. The gas coming out of the start fan should be flammable and burn with a blue colour.

The black canister to left is an air filter and is located there because of the lack of space in the engine room and so that no gas will be leaking out in the engine room when the system is shut down.

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Carbon neutral farming updated 28/9

The Big Race in SVT
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