Linearized description of the flow of a vapor with condensation and evaporation through a micro‐porous membrane | Zendy

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Linearized description of the flow of a vapor with condensation and evaporation through a micro‐porous membrane

Author(s) -

Loimer Thomas

Publication year - 2007

Publication title -

pamm

Language(s) - English

Resource type - Journals

ISSN - 1617-7061

DOI - 10.1002/pamm.200700731

Subject(s) - condensation , isothermal process , evaporation , flow (mathematics) , membrane , mass flux , dimensionless quantity , isothermal flow , thermodynamics , porosity , mechanics , flux (metallurgy) , chemistry , materials science , porous medium , physics , open channel flow , composite material , organic chemistry , biochemistry

It is shown that a fluid which flows through a micro‐porous membrane and which is in a state of saturated vapor upstream of the porous membrane condenses fully or partially and re‐evaporates further downstream. Several types of flow can occur. Either liquid, a two‐phase mixture or vapor flow through a part or all of the membrane. The dimensionless groups characterizing the flow process are given and a flow map is drawn to show the conditions under which the different types of flow occur. For a specific case, the mass flux is calculated according to the description presented here and a comparison is made with experimental data and with an isothermal description of the flow. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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