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Erschienen in:
2012 | OriginalPaper | Buchkapitel
Exact Solution of a Moisture Drying System with Phase Transition
verfasst von : Eva Litavcová, Miron Pavluš, Ján Seman, Ibrohim Sarhadov
Erschienen in: Mathematical Modeling and Computational Science
Verlag: Springer Berlin Heidelberg
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An exact solution of a linear system of moisture transfer with phase transition is proposed. The system consists of three equations. The first equation is a diffusion equation for liquid moisture concentration
w
l
, the second one is a diffusion equation for saturated vapor concentration
w
v
. Both equations are tied with the rate
I
of change of moisture concentration that arises in the pores due to the evaporation or condensation. The third equation is algebraic one and describes two complementary parts of the pores volume, the part, where the liquid moisture is present and the part, where saturated vapor is present.
The system is solved by means of the variables separation method.