Having the power to radiate something, especially light, heat, or radiation.
- A more quantitative approach on absorption and emission of radiation in terms of absorptive power and emissive power are explained with specific references to block - body radiation.
- A reflective and emissive roof system reduces both internal heat loads and the building's contribution to the ‘urban heat-island’ effect.
- While the reflective and emissive properties of a roof are most important for its coolness, other factors such as insulation, roof orientation and roof pitch contribute to a building's overall thermal efficiency.
- Example sentences
- This inversion technique takes into account atmospheric effects on the radiation and spatial variations in the surface emissivity and backscatter.
- This is because metal performs well when it comes to both emissivity and solar reflectivity.
- Because of the lower roof surface temperature on roofs with a high emissivity and high reflectivity, urban heat islands can be reduced with widespread use of cool roofs.
Mid 17th century (in the sense 'that is emitted'): from Latin emiss- 'emitted, sent out' (from the verb emittere) + -ive.
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