APPLICATION OF THE HOT DISK METHOD TO THE THERMOPHYSICAL CHARACTERIZATION OF SOILS

The thermal properties of soils, as thermal conductivity, have been usually determined by different designs of the quasi-permanent hot wire method. In the present paper the hot disk method was used to determine the effective thermal diffusivity (ETD) and thermal conductivity (TC) of soils derived fr...

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Autores principales:	Antilén,Mónica, Escudey,Mauricio, Förster,Juan E., Moraga,Nelson, Marty,Denis, Fudym,Olivier
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2003
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000300005
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spelling	oai:scielo:S0717-970720030003000052004-01-30APPLICATION OF THE HOT DISK METHOD TO THE THERMOPHYSICAL CHARACTERIZATION OF SOILSAntilén,MónicaEscudey,MauricioFörster,Juan E.Moraga,NelsonMarty,DenisFudym,OlivierThe thermal properties of soils, as thermal conductivity, have been usually determined by different designs of the quasi-permanent hot wire method. In the present paper the hot disk method was used to determine the effective thermal diffusivity (ETD) and thermal conductivity (TC) of soils derived from volcanic materials (one Ultisol and two Andisols) as a function of temperature from 25C to 280C. The volumetric heat capacity was also calculated from ETD and TC estimations. The TC values at 25C ranges from 0.84-0.94 for Andisols to 1.27 Wm-1K-1 for the Ultisol, and are similar to those reported by the hot-wire method. Values decrease down to 0.28-0.32 for Andisols and 0.67 Wm-1K-1 for Ultisol when heating temperature increases from 25C to 280C. The TC increases when soil density or water content increases, and decreases when soil organic matter content increases. The values of the thermal properties depend on water and organic carbon content, and mineralogy of samplesinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.48 n.3 20032003-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000300005en10.4067/S0717-97072003000300005
institution	Scielo Chile
collection	Scielo Chile
language	English
description	The thermal properties of soils, as thermal conductivity, have been usually determined by different designs of the quasi-permanent hot wire method. In the present paper the hot disk method was used to determine the effective thermal diffusivity (ETD) and thermal conductivity (TC) of soils derived from volcanic materials (one Ultisol and two Andisols) as a function of temperature from 25C to 280C. The volumetric heat capacity was also calculated from ETD and TC estimations. The TC values at 25C ranges from 0.84-0.94 for Andisols to 1.27 Wm-1K-1 for the Ultisol, and are similar to those reported by the hot-wire method. Values decrease down to 0.28-0.32 for Andisols and 0.67 Wm-1K-1 for Ultisol when heating temperature increases from 25C to 280C. The TC increases when soil density or water content increases, and decreases when soil organic matter content increases. The values of the thermal properties depend on water and organic carbon content, and mineralogy of samples
author	Antilén,Mónica Escudey,Mauricio Förster,Juan E. Moraga,Nelson Marty,Denis Fudym,Olivier
spellingShingle	Antilén,Mónica Escudey,Mauricio Förster,Juan E. Moraga,Nelson Marty,Denis Fudym,Olivier APPLICATION OF THE HOT DISK METHOD TO THE THERMOPHYSICAL CHARACTERIZATION OF SOILS
author_facet	Antilén,Mónica Escudey,Mauricio Förster,Juan E. Moraga,Nelson Marty,Denis Fudym,Olivier
author_sort	Antilén,Mónica
title	APPLICATION OF THE HOT DISK METHOD TO THE THERMOPHYSICAL CHARACTERIZATION OF SOILS
title_short	APPLICATION OF THE HOT DISK METHOD TO THE THERMOPHYSICAL CHARACTERIZATION OF SOILS
title_full	APPLICATION OF THE HOT DISK METHOD TO THE THERMOPHYSICAL CHARACTERIZATION OF SOILS
title_fullStr	APPLICATION OF THE HOT DISK METHOD TO THE THERMOPHYSICAL CHARACTERIZATION OF SOILS
title_full_unstemmed	APPLICATION OF THE HOT DISK METHOD TO THE THERMOPHYSICAL CHARACTERIZATION OF SOILS
title_sort	application of the hot disk method to the thermophysical characterization of soils
publisher	Sociedad Chilena de Química
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000300005
work_keys_str_mv	AT antilenmonica applicationofthehotdiskmethodtothethermophysicalcharacterizationofsoils AT escudeymauricio applicationofthehotdiskmethodtothethermophysicalcharacterizationofsoils AT forsterjuane applicationofthehotdiskmethodtothethermophysicalcharacterizationofsoils AT moraganelson applicationofthehotdiskmethodtothethermophysicalcharacterizationofsoils AT martydenis applicationofthehotdiskmethodtothethermophysicalcharacterizationofsoils AT fudymolivier applicationofthehotdiskmethodtothethermophysicalcharacterizationofsoils
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APPLICATION OF THE HOT DISK METHOD TO THE THERMOPHYSICAL CHARACTERIZATION OF SOILS

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