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Home > Terms > English, UK (UE) > Emissivity
Emissivity
The ratio of the radiant energy (heat) leaving (being emitted by) a surface to that of a black body at the same temperature and with the same area; expressed as a number between 0 and 1.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Energy
- Category: Energy efficiency
- Company: U.S. DOE
- Product:
- Acronym-Abbreviation:
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