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On the Interaction of Water and Heat Transport in Frozen and Unfrozen Soils: I. Basic Theory; The Vapor Phase
Author(s) -
Kay B. D.,
Groenevelt P. H.
Publication year - 1974
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1974.03615995003800030011x
Subject(s) - vaporization , thermodynamics , porous medium , wetting , soil water , phase change , phase (matter) , vapor pressure , dissipation , mechanics , temperature gradient , water transport , heat pipe , water flow , heat transfer , porosity , chemistry , geotechnical engineering , environmental science , physics , soil science , geology , meteorology , organic chemistry
A theory is presented for the transport in porous media of water in response to a temperature gradient and the transport of heat in response to a water pressure gradient. These processes are formulated by exploiting the appropriate equation of energy dissipation and the Clapeyron equation. Several general forms of the Clapeyron equation are developed in order to readily find expressions for the transport coefficients of concern. The cause of the coupled flow processes is related to the heat of vaporization, the heat of fusion, and the partial specific heat of wetting of the soil water. The present paper applies the basic theory to the transport processes via the vapor phase. A second paper is concerned with the liquid phase.