TY - JOUR
T1 - Non-equilibrium modeling hysteresis of water freezing
T2 - Ice thawing in partially saturated porous building materials
AU - Gawin, Dariusz
AU - Pesavento, Francesco
AU - Koniorczyk, Marcin
AU - Schrefler, Bernhard A.
N1 - Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The first and third author’s research was partly funded by the grant of National Science Center—Poland, No. UMO-2014/15/B/ST8/02854 titled ‘‘Multiscale, fractal, chemo-hygro-thermo-mechanical models for analysis and prediction the durability of cement based composites’’ realized at the Lodz University of Technology in years 2015–2018.
Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The first and third author?s research was partly funded by the grant of National Science Center?Poland, No. UMO-2014/15/B/ST8/02854 titled ?Multiscale, fractal, chemo-hygro-thermo-mechanical models for analysis and prediction the durability of cement based composites? realized at the Lodz University of Technology in years 2015?2018.
Publisher Copyright:
© The Author(s) 2019.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/9/1
Y1 - 2019/9/1
N2 - This article presents a novel mathematical model of hygro-thermal processes in a porous material, partially saturated with liquid water, exposed to temperatures below the freezing point of pore water. Water–ice phase transition is modeled by means of a kinetic approach considering water supercooling and thermodynamic non-equilibrium of the phases, what allows taking into account a hysteresis of ice content during freezing–thawing of moist porous materials. The model equations are solved for two numerical examples. The first one deals with laboratory differential scanning calorimetry test of a cement mortar saturated with water and exposed to temperatures below the freezing point of water (down to −40°C). The results are used for experimental validation of the proposed model, confirming its accuracy and practical usefulness. In the second example, the mesh refinement test is performed and the influence of the solid–liquid water phase change model parameters on the simulation results for a 1D model problem concerning water freezing–thawing are analyzed and discussed.
AB - This article presents a novel mathematical model of hygro-thermal processes in a porous material, partially saturated with liquid water, exposed to temperatures below the freezing point of pore water. Water–ice phase transition is modeled by means of a kinetic approach considering water supercooling and thermodynamic non-equilibrium of the phases, what allows taking into account a hysteresis of ice content during freezing–thawing of moist porous materials. The model equations are solved for two numerical examples. The first one deals with laboratory differential scanning calorimetry test of a cement mortar saturated with water and exposed to temperatures below the freezing point of water (down to −40°C). The results are used for experimental validation of the proposed model, confirming its accuracy and practical usefulness. In the second example, the mesh refinement test is performed and the influence of the solid–liquid water phase change model parameters on the simulation results for a 1D model problem concerning water freezing–thawing are analyzed and discussed.
KW - Porous materials
KW - non-equilibrium model of phase change
KW - numerical model of coupled heat and mass transport
KW - water freezing–ice thawing hysteresis
KW - water supercooling
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U2 - 10.1177/1744259119855100
DO - 10.1177/1744259119855100
M3 - Article
AN - SCOPUS:85067873875
VL - 43
SP - 61
EP - 98
JO - Journal of Building Physics
JF - Journal of Building Physics
SN - 1744-2591
IS - 2
ER -