Thermal budget of multicomponent porous ices / Gerhard Steiner, Norbert J. Kömle.

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100 1# ‡aSteiner, Gerhard.
245 10 ‡aThermal budget of multicomponent porous ices /‡cGerhard Steiner, Norbert J. Kömle.
260 ## ‡a[S.l.] :‡b[s.n.],‡c1991.
300 ## ‡ap. 18, 897-18, 902 :‡bdiags.
500 ## ‡aJournal of Geophysical Research. Vol. 96(E3) :18, 897-18, 902 (1991).
520 3# ‡aRelation for temperature evolution of such ices is derived from energy equation of multicomponent systems. Demonstrates that predominant energy transfer mechanisms can be incorporated into effective thermal conductivity, which is strongly temperature-dependent and that heat conduction equation can be written in Fourier type form. Vapour of volatile ices contributes significantly to effective thermal conductivity by transfer of latent heat of sublimation, but otherwise hardly affects energy balance. General results are applied to porous water ice, porous H₂O--CO₂ ice and porous H₂O--CO ice. In all cases, it is found that major part of deposited energy per unit volume is consumed for heating ice. Depending on material parameters and temperature, energy is transmitted mainly by solid state conduction or by transport of latent heat flow due to sublimation-condensation processes.
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a523.64 -- Comets.‡2udc
650 07 ‡a536 -- Heat.‡2udc
650 07 ‡aE13 -- Glaciology: glacioastronomy.‡2local
700 1# ‡aKömle, Norbert J.
773 0# ‡7nnas ‡tJournal of Geophysical Research. ‡gVol. 96(E3) (1991) ‡wSPRI-35252
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20240419