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

- However, the most commonly used form of emissivity is the hemispherical total emissivity, which considers emissions as totaled over all wavelengths, directions...
- Look up emission in Wiktionary, the free dictionary. Emission may refer to: Emission of air pollutants, notably: Flue gas, gas exiting to the atmosphere...
- 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...
- The ratio of any body's emission relative to that of a black body is the body's emissivity, so a black body has an emissivity of one. Absorptivity, reflectivity...
- A zero emission engine, motor, process, or other energy source emits no waste products that pollute the environment or disrupt the climate. Vehicles and...
- 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...
- emissivity of the matter doing the emitting. The emissivity is generally between zero and one, although some exotic materials may have an emissivity greater...
- Emissions control may refer to: EMCON, military state of minimal radio emissions Technology involved in vehicle emissions control Regulation of air pollution...
- emissivity—of black-body energy levels. By definition, a black body in thermal equilibrium has an emissivity ε = 1. A source with a lower emissivity,...
- 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...