emissivity

[US]/ˌɛmɪˈsɪvɪti/
[UK]/ˌɛmɪˈsɪvɪti/
Frequency: Very High

Translation

n.the measure of a material's ability to emit thermal radiation; the ratio of the thermal radiation emitted by a surface to that emitted by a black body at the same temperature
Word Forms

Phrases & Collocations

high emissivity

low emissivity

emissivity value

emissivity measurement

surface emissivity

emissivity coefficient

emissivity spectrum

emissivity analysis

effective emissivity

emissivity model

Example Sentences

the emissivity of a surface affects its thermal performance.

understanding emissivity is crucial in heat transfer calculations.

different materials have varying emissivity values.

high emissivity surfaces can lose heat more quickly.

measuring emissivity is important for accurate thermal imaging.

emissivity plays a key role in climate modeling.

materials with low emissivity are often used in insulation.

scientists study emissivity to improve energy efficiency.

emissivity can be affected by surface roughness.

knowing the emissivity helps in designing better heating systems.

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