Identification of Thermal Conductivity of Powdery Insulation Materials

Abstract:

The optimal design of the heat storage, as a part of the Czech-Swedish project of the development of original equipment for exploiting solar energy using optical fibres, requires a reliable evaluation of thermal conductivity of powdery materials for insulation layers, both under normal air pressure and in vacuum. The standard evaluation of thermal conductivity of such materials makes use of the stationary ball-shape measurement device, with the strong requirement to the of the ball vessel, to the thermal contraction of applied materials, as well as to all temperature sensors. The paper presents the original alternative non-expensive measurement equipment with the cylindrical vessel, supplied with the ANSYS-supported computational tool, producing results of comparable validity.

• Periodical: Advanced Materials Research (Volume 897)
• Pages: 333-339
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.897.333
• Online since: February 2014
• Authors: Petra Jarošová*, Stanislav Šťastník, Jiří Vala
• Keywords: Computational Modelling, Energy Saving Buildings, Identification Problems, Insulation Materials, Laboratory Testing, Thermal Storage

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