Oils are powerful fuels, but the high price of refined petroleum, the oil generally preferred, precludes its widespread use for many purposes for which it is suitable.
In small stoves for warming and for cooking, petroleum presents some advantages over other fuels, in that there is no chimney to sweep, and if well managed no unpleasant fumes, and the stoves are easily portable.
Charcoal, coke or anthracite coal are the fuels generally used in slow combustion heating stoves.
This has led to the estimation of sugar by means of the polarimeter, and of the calorific power of fuels, and the valuation of ores and metals, of coal-tar dyes, and almost all trade products.
Accord Table 111.-Composition of Fuels (assuming Carbon = Ioo).
How would you define fuels? Add your definition here.