Stefan-Boltzmann constant


Stefan-Boltzmann constant
constant of proportionality used in radiation heat transfer, whose value is 5.669 10-8 W/m2-K4. For a blackbody, the heat flux emitted is given by the product of s and the absolute temperature to the fourth power.

Mechanics glossary. 2013.

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  • Stefan–Boltzmann constant — The Stefan–Boltzmann constant (also Stefan s constant), a physical constant denoted by the Greek letter σ, is the constant of proportionality in the Stefan–Boltzmann law: the total energy radiated per unit surface area of a black body in unit… …   Wikipedia

  • Stefan-Boltzmann constant — Stefano ir Bolcmano konstanta statusas T sritis Standartizacija ir metrologija apibrėžtis Visiškojo spinduolio energinį šviesį M ir termodinaminę temperatūrą T siejanti konstantaσ: M = σ T⁴; σ = 5,670 400(40) · 10⁻⁸ W · m⁻² · K⁻⁴. atitikmenys:… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • Stefan-Boltzmann constant — Stefano ir Bolcmano konstanta statusas T sritis fizika atitikmenys: angl. Stefan Boltzmann constant vok. Stefan Bolzmannsche Konstante, f; Strahlungskonstante, f rus. постоянная Стефана Больцмана, f pranc. constante de Stefan Boltzmann, f …   Fizikos terminų žodynas

  • 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

  • Boltzmann constant — For the constant pertaining to energy of black body radiation see Stefan–Boltzmann constant Values of k[1] Units 1.3806488(13)×10−23 J K−1 8.617332 …   Wikipedia

  • Stefan–Boltzmann law — ▪ physics       statement that the total radiant heat energy emitted from a surface is proportional to the fourth power of its absolute temperature. Formulated in 1879 by Austrian physicist Josef Stefan (Stefan, Josef) as a result of his… …   Universalium

  • constante de Stefan-Boltzmann — Stefano ir Bolcmano konstanta statusas T sritis Standartizacija ir metrologija apibrėžtis Visiškojo spinduolio energinį šviesį M ir termodinaminę temperatūrą T siejanti konstantaσ: M = σ T⁴; σ = 5,670 400(40) · 10⁻⁸ W · m⁻² · K⁻⁴. atitikmenys:… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • constante de Stefan-Boltzmann — Stefano ir Bolcmano konstanta statusas T sritis fizika atitikmenys: angl. Stefan Boltzmann constant vok. Stefan Bolzmannsche Konstante, f; Strahlungskonstante, f rus. постоянная Стефана Больцмана, f pranc. constante de Stefan Boltzmann, f …   Fizikos terminų žodynas

  • Stefan-Boltzmannsche Konstante — Stefano ir Bolcmano konstanta statusas T sritis Standartizacija ir metrologija apibrėžtis Visiškojo spinduolio energinį šviesį M ir termodinaminę temperatūrą T siejanti konstantaσ: M = σ T⁴; σ = 5,670 400(40) · 10⁻⁸ W · m⁻² · K⁻⁴. atitikmenys:… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • Stefan-Bolzmannsche Konstante — Stefano ir Bolcmano konstanta statusas T sritis fizika atitikmenys: angl. Stefan Boltzmann constant vok. Stefan Bolzmannsche Konstante, f; Strahlungskonstante, f rus. постоянная Стефана Больцмана, f pranc. constante de Stefan Boltzmann, f …   Fizikos terminų žodynas


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