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Simplified Transient Hot-Wire Method for Effective Thermal Conductivity Measurement in Geo Materials : Microstructure and Saturation Effect
المؤلفون المشاركون
Marchand, D.
Merckx, B.
Dudoignon, P.
Garnier, J. P.
المصدر
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-05-07
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
The thermal conductivity measurement by a simplified transient hot-wire technique is applied to geomaterials in order to show the relationships which can exist between effective thermal conductivity, texture, and moisture of the materials.
After a validation of the used “one hot-wire” technique in water, toluene, and glass-bead assemblages, the investigations were performed (1) in glass-bead assemblages of different diameters in dried, water, and acetone-saturated states in order to observe the role of grain sizes and saturation on the effective thermal conductivity, (2) in a compacted earth brick at different moisture states, and (3) in a lime-hemp concrete during 110 days following its manufacture.
The lime-hemp concrete allows the measurements during the setting, desiccation and carbonation steps.
The recorded ΔT/ln(t) diagrams allow the calculation of one effective thermal conductivity in the continuous and homogeneous fluids and two effective thermal conductivities in the heterogeneous solids.
The first one measured in the short time acquisitions (<1 s) mainly depends on the contact between the wire and grains and thus microtexture and hydrated state of the material.
The second one, measured for longer time acquisitions, characterizes the mean effective thermal conductivity of the material.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Merckx, B.& Dudoignon, P.& Garnier, J. P.& Marchand, D.. 2012. Simplified Transient Hot-Wire Method for Effective Thermal Conductivity Measurement in Geo Materials : Microstructure and Saturation Effect. Advances in Civil Engineering،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-486133
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Merckx, B.…[et al.]. Simplified Transient Hot-Wire Method for Effective Thermal Conductivity Measurement in Geo Materials : Microstructure and Saturation Effect. Advances in Civil Engineering No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-486133
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Merckx, B.& Dudoignon, P.& Garnier, J. P.& Marchand, D.. Simplified Transient Hot-Wire Method for Effective Thermal Conductivity Measurement in Geo Materials : Microstructure and Saturation Effect. Advances in Civil Engineering. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-486133
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-486133
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