Fuel is any material that stores energy that can later be extracted to perform mechanical work in a controlled manner. Most fuels used by humans undergo combustion, a redox reaction in which a combustible substance releases energy after it ignites and reacts with the oxygen in the air. Other processes used to convert fuel into energy include various other exothermic chemical reactions and nuclear reactions, such as nuclear fission or nuclear fusion. Fuels are also used in the cells of organisms in a process known as cellular respiration, where organic molecules are oxidized to release usable energy. Hydrocarbons are by far the most common source of fuel used by humans, but other substances, including radioactive metals, are also utilized.

Read more about FuelChemical, Nuclear, World Trade, Use Over Time, Classification of Fuel

Other articles related to "fuel, fuels":

Fuel (band)
... Fuel is an American rock band formed by guitarist/songwriter Carl Bell and bassist Jeff Abercrombie in 1989 ... Originally known as Small the Joy, they changed the group's name to Fuel sometime in 1994 ...
English Electric Lightning - Design - Overview
... The fuselage was tightly packed, leaving no room for fuel tankage or main landing gear ... of a standard delta wing, each wing contained a fairly conventional three-section main fuel tank and leading-edge tank, holding 312 imp gal (1,420 l) the wing flap also contained a 33 imp gal (150 l) fuel tank and ... and aft of the leading edge tanks, with the flap fuel tanks behind ...
Delta-v - Orbital Maneuvers
... During the burn the mass of the spacecraft will decrease due to use of fuel, the time derivative of the mass being (3) If now the direction of the force, i.e ... to the spacecraft mass m one gets (5) Assuming to be a constant not depending on the amount of fuel left this relation is integrated to (6) which is the ... If is a non-constant function of the amount of fuel left the capacity of the reaction control system is computed by the integral (5) ...
Zip Fuel - Description
... The ultimate fuel from a mass-to-performance perspective is hydrogen ... like carbon, the hydrogen can be rendered into the easily burnable hydrocarbon fuels ... content than carbon, but do not mix well to form a stable fuel that can be easily burned ...
Zlín Z 37 - Specifications (Z-37A)
... air Landing run less than 100 metres in still air Fuel Capacity 250 litres Fuel Grade Not less than 73 Octane (Unleaded 95 usually used) Fuel Consumption 52 litres per hour cruise, 110 ...

Famous quotes containing the word fuel:

    It is now many years that men have resorted to the forest for fuel and the materials of the arts: the New Englander and the New Hollander, the Parisian and the Celt, the farmer and Robin Hood, Goody Blake and Harry Gill; in most parts of the world, the prince and the peasant, the scholar and the savage, equally require still a few sticks from the forest to warm them and cook their food. Neither could I do without them.
    Henry David Thoreau (1817–1862)

    Beware the/easy griefs, that fool and fuel nothing./It is too easy to cry “AFRIKA!”/and shock thy street,/and purse thy mouth,/and go home to thy “Gunsmoke,” to/thy “Gilligan’s Island” and the NFL.
    Gwendolyn Brooks (b. 1917)

    The particular source of frustration of women observing their own self-study and measuring their worth as women by the distance they kept from men necessitated that a distance be kept, and so what vindicated them also poured fuel on the furnace of their rage. One delight presumed another dissatisfaction, but their hatefulness confessed to their own lack of power to please. They hated men because they needed husbands, and they loathed the men they chased away for going.
    Alexander Theroux (b. 1940)