Sentences with phrase «of radiant transfer»

- and finally that old stalwart of radiant transfer the Stefan - Boltzmann constant, let's call this «s» (I think you can see where I am going with this)

Not exact matches

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Lifting one canvas onto another, the artist transfers paint across two surfaces, creating a labyrinth of scrapes and drips that intersect with radiant expanses of color.

PS when molecular collisions are frequent relative to photon emissions and absorptions (as is generally the case in most of the mass of the atmosphere), the radiant heat absorbed by any population of molecules is transfered to the heat of the whole population within some volume, and molecules that emit photons can then gain energy from other molecules.

Radiation transfers heat across different scales at different optical thicknesses for different frequencies; the net radiant flux depends more on temperature variations that occur over distances on the order of a unit of optical thickness, so the net flux can be through smaller - scale temperature variations.

It is the density, not the composition which gives more or less opportunities for such instances of energy transfer between molecules whilst the incoming and outgoing radiant energy is negotiating the atmosphere.

At the top of the atmosphere it seems to hold, since that is radiant transfer, but as you descend in to the thermodynamic onion it gets difficult to justify.

If the average radiant layer were 288K @ 390Wm - 2 and you didn't have to consider other non-radiant means of energy transfer, that would be a fair estimate.

However, if extra CO2 reduces the cooling rate of the Earth surface, and the rate of radiant energy transfer from Sun to Earth surface is little changed, then the Earth surface will warm (other things being equal) from what it was before the increase in CO2.

Leaving no more than 40 % as Radiant Energy transfer, with 24 % of that 40 % as direct loss to Atmospheric Window.

Radiant energy accounts for all of the outbound energy at the top of atmosphere, but only a fraction of the energy transfer at the surface.

The main issue is an understanding of the physical processes regarding density and the energy transfer along with the conversion of radiant energy to mechanical energy and the currents of the oceans.

The fundamental equation of radiative transfer at the emitting surface of an astronomical body, relating changes in radiant - energy flux to changes in temperature, is the Stefan - Boltzmann equation --

whereF is radiant - energy flux at the emitting surface; εis emissivity, set at 1 for a blackbody that absorbs and emits all irradiance reaching its emitting surface (by Kirchhoff's law of radiative transfer, absorption and emission are equal and simultaneous), 0 for a whitebody that reflects all irradiance, and (0, 1) for a graybody that partly absorbs / emits and partly reflects; and σ ≈ 5.67 x 10 — 8 is the Stefan - Boltzmann constant.

In the atmosphere, you do not have a closed system, so such thermal equilibrium can hardly be present, given that all manner of things, are driving radiant energy into any volume of atmosphere, as well as conductive, and mass transport (convective) energy transfers are taking place.

Again the purpose for this thread was to look at how the radiant transfers work, not what is the best estimate of those two values.

The idea of heat coming back from the colder object is almost always used with radiant transfer as backradiation.

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