Classification of Fuel
On the basis of occurrence, fuels can be classified as of two types,primary(natural fuel) and secondary(artificial fuel). Primary fuels are of three types, solid(wood,coal,peat,lignite,cow dung, etc. ), liquid(crude oil) and gaseous(natural gas). Secondary fuels are also of three types, solid(coke, charcoal,petroleum), liquid(diesel, petrol,tar, kerosene,LPG) and gaseous(water gas, blast furnace gas,coal gas,coke oven gas,CNG).
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Charcoal
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Famous quotes containing the word fuel:
“I had an old axe which nobody claimed, with which by spells in winter days, on the sunny side of the house, I played about the stumps which I had got out of my bean-field. As my driver prophesied when I was plowing, they warmed me twice,—once while I was splitting them, and again when they were on the fire, so that no fuel could give out more heat. As for the axe,... if it was dull, it was at least hung true.”
—Henry David Thoreau (1817–1862)