Quantifying Salt Crystallization Impact on Evaporation Dynamics From Porous Surfaces
Jannesarahmadi, Sahar, Aminzadeh, Milad, Helmig, Rainer, Or, Dani and Shokri, Nima, (2024). Quantifying Salt Crystallization Impact on Evaporation Dynamics From Porous Surfaces. Geophysical Research Letters, 51(22), e2024GL111080-n/a
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Sub-type Journal article Author Jannesarahmadi, Sahar
Aminzadeh, Milad
Helmig, Rainer
Or, Dani
Shokri, NimaTitle Quantifying Salt Crystallization Impact on Evaporation Dynamics From Porous Surfaces Appearing in Geophysical Research Letters Volume 51 Issue No. 22 Publication Date 2024-11-14 Place of Publication Washington D.C., United States Publisher AGU Start page e2024GL111080 End page n/a Language eng Abstract We investigated the effects of salt crystallization on the dynamics of saline water evaporation in porous media. Water mass loss rates from sand columns supplied with NaCl solutions at three concentrations were monitored under controlled ambient conditions. The formation and evolution of salt crystals over sand surfaces were synchronously imaged optically and thermally. Despite identical experimental and ambient conditions, we observed distinct crystallization dynamics that affected evaporative mass loss rates for similar salt concentrations, highlighting high variability of crystallization and its impact on evaporation. We observed the enhancement of maximum evaporation rates by factors of 3 to 14 under our experimental conditions and attributed this enhancement to the formation and evolution of porous crystalized salts at the surface. Additionally, visible intermittent temperature fluctuations of the salt crust were quantified using thermal imagery attributed to the dynamic processes of crystallization, dissolution and evaporation occurring simultaneously at the surface. Copyright Holder Authors Copyright Year 2024 Copyright type Creative commons ISSN 0094-8276 DOI https://doi.org/10.1029/2024GL111080 -
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