Definition of Emissivity. Meaning of Emissivity. Synonyms of Emissivity

Here you will find one or more explanations in English for the word Emissivity. Also in the bottom left of the page several parts of wikipedia pages related to the word Emissivity and, of course, Emissivity synonyms and on the right images related to the word Emissivity.

Definition of Emissivity

Emissivity
Emissivity Em`is*siv"i*ty, n. Tendency to emission; comparative facility of emission, or rate at which emission takes place; specif. (Physics), the rate of emission of heat from a bounding surface per degree of temperature difference between the surface and surrounding substances (called by Fourier external conductivity).
Emissivity
Emissivity Em`is*siv"i*ty, n. Tendency to emission; comparative facility of emission, or rate at which emission takes place, as of heat from the surface of a heated body.

Meaning of Emissivity from wikipedia

- as reusable spacecraft or hypersonic aircraft, high emissivity coatings (HECs), with emissivity values near 0.9, are applied on the surface of insulating...
- Low emissivity (low e or low thermal emissivity) refers to a surface condition that emits low levels of radiant thermal (heat) energy. All materials absorb...
- Emission may refer to: Emission of air pollutants, notably: Flue gas, gas exiting to the atmosphere via a flue Exhaust gas, flue gas generated by fuel...
- half of the emissions by various natural "sinks" involved in the carbon cycle. The vast majority of anthropogenic carbon dioxide emissions come from combustion...
- The ratio of any body's emission relative to that of a black body is the body's emissivity, so that a black body has an emissivity of unity (i.e., one)....
- The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or...
- body. The fraction of its actual emission to the theoretical emission (of the black body) is its emissivity (or emissivity coefficient). In order to make...
- reflective surfaces have lower emissivity than non-reflective surfaces.[citation needed] Some sensors have an adjustable emissivity setting, which can be set...
- radiation (radiant heat). To keep the sun's heat out of the house, a low-emissivity coating should be applied to the outside pane of glazed windows. If the...
- while having an emissivity of 0.93. This is because the absorptivity is averaged with weighting for the solar spectrum, while the emissivity is weighted for...
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