Перевод: со всех языков на все языки

со всех языков на все языки

emissivity of heat

Страницы
  • 1
  • 2

См. также в других словарях:

  • 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

  • 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 …   The Collaborative International Dictionary of English

  • Emissivity — The emissivity of a material (usually written ε or e) is the relative ability of its surface to emit energy by radiation. It is the ratio of energy radiated by a particular material to energy radiated by a black body at the same temperature. A… …   Wikipedia

  • emissivity — The giving off of heat rays; a perfect “black body” has an e. of 1, a highly polished metallic surface may have an e. as low as 0.02. * * * emis·siv·i·ty .em ə siv ət ē, .ē .mis iv n, pl ties the relative power of a surface to emit heat by… …   Medical dictionary

  • emissivity — noun (plural ties) Date: 1880 the relative power of a surface to emit heat by radiation ; the ratio of the radiant energy emitted by a surface to that emitted by a blackbody at the same temperature …   New Collegiate Dictionary

  • Emissivity —   The ratio of the radiant energy (heat) leaving (being emitted by) a surface to that of a black body at the same temperature and with the same area; expressed as a number between 0 and 1.   ***   The property of emitting radiation; possessed by… …   Energy terms

  • Low-emissivity — (Low E) coatings are microscopically thin, virtually invisible, metal or metallic oxide layers deposited on a window or skylight glazing surface primarily to reduce the U factor by suppressing radiative heat flow. The principal mechanism of heat… …   Wikipedia

  • Urban heat island — An urban heat island (UHI) is a metropolitan area which is significantly warmer than its surrounding rural areas. The temperature difference usually is larger at night than during the day and larger in winter than in summer, and is most apparent… …   Wikipedia

  • Underfloor heating — Heat can be provided by circulating heated water or by electric cable, mesh, or film heaters.Underfloor heating can be used with concrete and wooden floors, with all types of floor covering (e.g., stone, tile, wood, vinyl, and carpet), and at… …   Wikipedia

  • external conductivity — 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… …   The Collaborative International Dictionary of English

  • Black body — As the temperature decreases, the peak of the blackbody radiation curve moves to lower intensities and longer wavelengths. The blackbody radiation graph is also compared with the classical model of Rayleigh and Jeans …   Wikipedia

Поделиться ссылкой на выделенное

Прямая ссылка:
… Нажмите правой клавишей мыши и выберите «Копировать ссылку»