The higher the energy density of a fuel, the greater the amount of energy it has stored.
What is the energy density?
The energy density of a fuel is defined as the amount of energy it possesses per unit volume or per unit weight.
Characteristics of the energy density
- It is the amount of energy accumulated in an energy vector per unit volume or mass.
- In general, higher density energy sources and carriers are preferable, as many end uses require concentration of such energy.
- The packaging of energy in liquid hydrocarbons is the one with the highest energy density, that is, the highest energy per volume unit, hence its high use in the transportation sector.
Therefore, we can conclude that in general, fuels, especially low molecular weight fuels, have high energy densities.
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