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Дата на основаване август 7, 2024
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Сектори Банково дело и Финанси
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Make your own Biodiesel Part 1
There are at least three ways to run a diesel motor on biofuel using veggie oils, animal fats or both. All three are used with both fresh and used oils.
1. Use the oil simply as it is– generally called SVO fuel (straight veggie oil);
2. Mix it with kerosene (paraffin) or petroleum diesel fuel, or with biodiesel, or blend it with a solvent, or with fuel;
3. Convert it to biodiesel.
The very first two methods sound most convenient, however, as so in life, it’s not quite that easy.
1. Mixing it
Grease is much more thick (thicker) than either petro-diesel or biodiesel. The purpose of blending it or blending it with other fuels is to decrease the viscosity to make it thinner so that it flows more easily through the fuel system into the combustion chamber.
If you’re blending veg-oil with petroleum diesel or kerosene (same as # 1 diesel) you’re still using fossilfuel– cleaner than many, however still unclean enough, many would state. Still, for each gallon of
grease you use, that’s one gallon of fossil-fuel saved, and that much less climate-changing carbon in the atmosphere.
People utilize different blends, varying from 10% veggie oil and 90% petro-diesel to 90% vegetable oil and 10% petro-diesel. Some individuals just utilize it that way, launch and go, without pre-heating it (that makes veg-oil much thinner), or even use pure grease without pre-heating it, which would make it much thinner.
You might get away with it with an older Mercedes 5-cylinder IDI diesel, which is a very hard and tolerant motor– it won’t like it but you most likely will not kill it. Otherwise, it’s not smart.
To do it effectively you’ll need what amounts to an SVO system with fuel pre-heating anyhow, ideally utilizing pure petro-diesel or biodiesel for starts and stops. (See next.) In which case there’s no requirement for the mixes.
Blends with various solvents and/or with unleaded gas are „speculative at finest“, little or absolutely nothing is understood about their impacts on the combustion attributes of the fuel or their long-term effects on the engine.
Higher viscosity is not the only problem with utilizing grease as fuel. Veg-oil has various chemical residential or commercial properties and combustion qualities from the petroleum diesel fuel for which diesel motor and their fuel systems are designed.
Diesel engines are high-tech makers with extremely exact fuel requirements, especially the more modern, cleaner-burning diesels (see The TDI-SVO controversy).
They are difficult however they’ll just take a lot abuse. There’s no warranty of it, however utilizing a blend of as much as 20% veg-oil of good quality is said to be safe enough for older diesels, specifically in summer.
Otherwise using veg-oil fuel needs either an expert SVO solution or biodiesel. Mixes and blends are usually a poor compromise. But mixes do have an advantage in cold weather.
As with biodiesel, some kerosene or winterised petro-diesel fuel combined with straight grease reduces the temperature at which it starts to gel. (See Using biodiesel in winter) More about fuel blending and blends.