Gasoline is a fuel transport still plays an important role to date. Gasoline containing more than 500 types of hydrocarbons having chain C5-C10. Levels vary depending on the composition of the crude oil and desired quality. So, how exactly is the use of gasoline as a fuel?
Gasoline as a motor vehicle fuel
Because gasoline only burns in the vapor phase, the gasoline must be vaporized in the carburetor before being burned in the engine cylinder. The energy generated from the combustion of gasoline is converted into motion through the following steps.
Burning gasoline is desired that produces a smooth impetus to the decline of the piston. It depends on the timeliness of combustion so that the amount of energy transferred to a maximum piston. Timeliness combustion depending on the type of hydrocarbon chains which in turn will determine the quality of gasoline. Straight-chain Alkanes in gasoline such as n-heptane, n-octane, and n-nonana highly flammable. This causes the combustion occurs too early before the piston reaches the right position. That places an explosion known as the knock (knocking). Burning too early also means that there is residual unburned gasoline components so that energy is transferred to the piston is not the maximum. Branched-chain Alkanes / alicyclic / aromatic in gasoline as isooctane not very flammable. Thus, fewer beats are generated, and the energy is transferred to the larger piston.
Therefore, with a good quality gasoline should contain more branched chain alkane / alicyclic / aromatic than straight-chain alkanes. The quality is expressed by the gasoline octane number.
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