specific energy (B2)
noun phrase
Pronunciation: /spəˈsɪfɪk ˈɛnərdʒi/
Definition
The amount of energy per unit mass of a substance or system, often used to describe the energy density of a material or the efficiency of an energy conversion process.
Examples
The specific energy of gasoline is higher than that of coal, making it a more efficient fuel source.
The engineers designed the new battery to have a higher specific energy than traditional batteries, allowing for longer battery life.
The specific energy of the solar panel was affected by the angle of incidence and the amount of shading on its surface.
How to Use specific energy
- have a high specific energy (collocation)
- to have a high energy density — "The new battery has a high specific energy, making it suitable for electric vehicles."
- increase the specific energy (phrasal verb)
- to increase the energy density — "The engineers worked to increase the specific energy of the fuel cell."
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