Occurrence of temperature spikes at a wetting front during spontaneous imbibition

Abstract It is reported that temperature rises at wetting front during water infiltration into soil. The temperature goes back to the background value after passage of water front. Different explanations have been provided for source of energy causing temperature spike. Some have contributed it to h...

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Autores principales:	Hamed Aslannejad, Alexandros Terzis, S. Majid Hassanizadeh, Bernhard Weigand
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/081ec6cf2be54a5d86a1c2d6742a6cd9
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spelling	oai:doaj.org-article:081ec6cf2be54a5d86a1c2d6742a6cd92021-12-02T15:05:07ZOccurrence of temperature spikes at a wetting front during spontaneous imbibition10.1038/s41598-017-07528-72045-2322https://doaj.org/article/081ec6cf2be54a5d86a1c2d6742a6cd92017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07528-7https://doaj.org/toc/2045-2322Abstract It is reported that temperature rises at wetting front during water infiltration into soil. The temperature goes back to the background value after passage of water front. Different explanations have been provided for source of energy causing temperature spike. Some have contributed it to heat of condensation released due to condensation of vapor on “dry” solid surface. Some other stated that the heat of wetting or heat of adsorption is responsible for the temperature rise. In this research, we revisited this issue. First, we provide a comprehensive review about occurrence of temperature spike at a wetting front. Then, we report about experiments we performed on the rise of water in dry paper. Using infrared and optical imaging techniques, we could monitor temperature changes in time and space. For all samples maximum temperature rise occurred at the wetting front. The magnitude of temperature spike depended on paper material, thickness, and liquid composition. It was larger for cellulose-fiber-based paper than for plastic-based paper. For a given paper type, thicker samples showed a larger temperature spike. Adding salt to the water caused reduction of temperature spike. It was concluded that replacement of air-solid interface with water-solid interface releases energy, which causes temperature rise.Hamed AslannejadAlexandros TerzisS. Majid HassanizadehBernhard WeigandNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-15 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Hamed Aslannejad Alexandros Terzis S. Majid Hassanizadeh Bernhard Weigand Occurrence of temperature spikes at a wetting front during spontaneous imbibition
description	Abstract It is reported that temperature rises at wetting front during water infiltration into soil. The temperature goes back to the background value after passage of water front. Different explanations have been provided for source of energy causing temperature spike. Some have contributed it to heat of condensation released due to condensation of vapor on “dry” solid surface. Some other stated that the heat of wetting or heat of adsorption is responsible for the temperature rise. In this research, we revisited this issue. First, we provide a comprehensive review about occurrence of temperature spike at a wetting front. Then, we report about experiments we performed on the rise of water in dry paper. Using infrared and optical imaging techniques, we could monitor temperature changes in time and space. For all samples maximum temperature rise occurred at the wetting front. The magnitude of temperature spike depended on paper material, thickness, and liquid composition. It was larger for cellulose-fiber-based paper than for plastic-based paper. For a given paper type, thicker samples showed a larger temperature spike. Adding salt to the water caused reduction of temperature spike. It was concluded that replacement of air-solid interface with water-solid interface releases energy, which causes temperature rise.
format	article
author	Hamed Aslannejad Alexandros Terzis S. Majid Hassanizadeh Bernhard Weigand
author_facet	Hamed Aslannejad Alexandros Terzis S. Majid Hassanizadeh Bernhard Weigand
author_sort	Hamed Aslannejad
title	Occurrence of temperature spikes at a wetting front during spontaneous imbibition
title_short	Occurrence of temperature spikes at a wetting front during spontaneous imbibition
title_full	Occurrence of temperature spikes at a wetting front during spontaneous imbibition
title_fullStr	Occurrence of temperature spikes at a wetting front during spontaneous imbibition
title_full_unstemmed	Occurrence of temperature spikes at a wetting front during spontaneous imbibition
title_sort	occurrence of temperature spikes at a wetting front during spontaneous imbibition
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/081ec6cf2be54a5d86a1c2d6742a6cd9
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_version_	1718388935136116736

Occurrence of temperature spikes at a wetting front during spontaneous imbibition

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