Powdered firewood as an alternative motor fuel. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Powdered firewood as an alternative motor fuel. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Alternative energy sources

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The concept of alternative biofuel powder makes it possible to replace traditional liquid motor fuel with cheap and environmentally friendly free-flowing microcrystalline cellulose powder.

Powdered firewood as an alternative motor fuel

The ever-growing shortage of oil and the environmental problems caused by fossil fuels are forcing us to look for a replacement for petroleum fuel. The most affordable alternative to traditional fuel is biofuel, which is obtained from plant fiber, which consists mainly of cellulose, a natural polysaccharide that serves as the supporting skeleton of plants.

The natural increase in biomass is ten times higher than the consumption of fossil fuels, but, unlike oil, plants absorb carbon dioxide from the air to grow, so burning biofuels does not cause the accumulation of greenhouse gases in the atmosphere.

Solid granulated biofuel for power plants, boiler houses and fireplaces - "Pellets" - is made from vegetable fiber. But motors of cars cannot run on granular solid fuel, this is its big drawback.

Liquid motor fuel is obtained from fiber, mainly alcohols - "Bioethanol" and "Methanol" by fermentation and thermal decomposition - "Pyrolysis". But due to high costs, the production of liquid biofuels is on the verge of profitability at average oil prices. If cars could run on solid fuel, this would solve the problem of switching to renewable fuel, stimulating the ruble to abandon oil.

Steam engines can run on solid fuels, but not automobiles.

There were attempts to adapt cars to traditional solid fuel in the USSR. During the war, many cars were equipped with wood-fired pyrolysis boilers; there were modifications of machines with steam engines.

As practice has shown, the mass and dimensions of pyrolysis boilers or steam furnaces are not suitable for cars, automotive fuel systems should be light and compact.

Theoretically, internal combustion engines can run on solid fuel in the form of a fine powder fed into the cylinders.

A piston engine can operate on powder fuel as well as on liquid fuel, provided that it is efficiently atomized and burns quickly.

Traditional wood flour is too loose and viscous for automotive fuel systems, but the so-called powdered fuel is excellent. "Microcrystalline cellulose" is an intermediate product of cellulose hydrolysis that can be formed into a dense, free-flowing powder.

Powdered firewood as an alternative motor fuel

Powdered fuel can be atomized using the "Gas Jet Spray System", which atomizes and ignites the fuel with jets of hot compressed air. The advantages of a gas-jet spray system include the ability to spray with equal efficiency both solid powder fuel and any combustible liquid, gasoline, diesel fuel, oil, crude oil, water-oil or water-oil emulsions, alcohols and their aqueous solutions. This allows you to create on its basis a universal multi-fuel engine.

Powdered biofuels are two to three times cheaper than traditional liquid fuels. It is affordable and environmentally friendly.

The proposed concept of powder motor biofuel is an alternative direction that allows creating a "green" fuel industry that can compete with oil.

Powdered firewood as an alternative motor fuel

Microcrystalline cellulose "MKTs" can be used not only as a fuel, but also as a raw material for the production of cheap "green" polymers, as an inert filler in the production of polymers, as a component of building and finishing mixtures, and as a raw material for the chemical industry.

MCC powder is more convenient for transportation and industrial use than traditional solid vegetable raw materials, wood waste or straw.

MCC can constitute an alternative to oil as a fuel and chemical raw material as an environmentally friendly renewable hydrocarbon resource.

Author: Nikolay Agapov

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