emissivity coefficient

См. также в других словарях:

• surface emissivity — the relative emissive power of a body compared to that of an ideal blackbody. In other words, the fraction of thermal radiation emitted compared to the amount emitted if the body were a blackbody. By definition, a blackbody has a surface… …   Mechanics glossary

• коэффициент излучения — [emissivity, radiation coefficient] отношение яркости излучения тела к яркости излучения абсолютно чёрного тела при одинаковой температуре; Смотри также: Коэффициент фабрикационный коэффициент температурный …   Энциклопедический словарь по металлургии

• Multi-layer insulation — Closeup of Multi layer insulation from a satellite. The metal coated plastic layers and the scrim separator are visible. Multi layer insulation, or MLI, is thermal insulation composed of multiple layers of thin sheets often used on spacecraft. It …   Wikipedia

• Stefan–Boltzmann law — The Stefan–Boltzmann law, also known as Stefan s law, states that the total energy radiated per unit surface area of a black body in unit time (known variously as the black body irradiance, energy flux density, radiant flux, or the emissive… …   Wikipedia

• Insulated glazing — (IG) also known as double glazing are double or triple glass window panes separated by an air or other gas filled space to reduce heat transfer across a part of the building envelope. Glass in windows is used to provide light and allow a view… …   Wikipedia

• Mean radiant temperature — The Mean Radiant Temperature (MRT) is a concept arising from the fact that the net exchange of radiant energy between two objects is approximately proportional to their temperature difference multiplied by their ability to emit and absorb heat… …   Wikipedia

• Constitutive equation — Many defining equations are in the form of a constitutive equation, since parameters of a property or effect associated matter are characteristic to the substance in question. A large number of other defining equations not specifically… …   Wikipedia

• Heat transfer — is a discipline of thermal engineering that concerns the exchange of thermal energy from one physical system to another. Heat transfer is classified into various mechanisms, such as heat conduction, convection, thermal radiation, and phase change …   Wikipedia

• Greek letters used in mathematics, science, and engineering — Greek alphabet Αα Alpha Νν Nu Ββ Beta …   Wikipedia

• Collocation (remote sensing) — Collocation is a procedure used in remote sensing to match measurements from two or more different instruments. This is done for two main reasons: for validation purposes when comparing measurements of the same variable, and to relate… …   Wikipedia

• Solar gain — (also known as solar heat gain or passive solar gain) refers to the increase in temperature in a space, object or structure that results from solar radiation. The amount of solar gain increases with the strength of the sun, and with the ability… …   Wikipedia