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Critical review of industrial techniques for thermal conductivity measurements of thermal insulation materials.

Hammerschmidt, U*; Hameury, J*; Strnad, R*; Turzo-Andras, E*; Wu, J Y (2015) Critical review of industrial techniques for thermal conductivity measurements of thermal insulation materials. Int. J. Thermophysics, 36 (7). pp. 1530-1544.

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Abstract

This paper presents a critical review of current industrial techniques and instruments to measure the thermal conductivity of thermal insulation materials, especially those insulations that can operate at temperatures above 250°C and up to 800°C. These materials generally are of a porous nature. The measuring instruments dealt with here are selected based on their maximum working temperature that should be higher than at least 250°C. These instruments are special types of the guarded hot-plate apparatus, the guarded heat-flow meter, the transient hot-wire and hot-plane instruments as well as the laser/xenon flash devices. All technical characteristics listed are quoted from the generally accessible information of the relevant manufacturers. The paper includes rankings of the instruments according to their standard retail price, the maximum sample size, and maximum working temperature, as well as the minimum in their measurement range.

Item Type: Article
Keywords: Guarded heat-flow meter, Guarded hot-plate apparatus, High temperature, Laser-flash instrument, Measuring device, Thermal conductivity, Thermal insulation material, Transient hot wire, Transient plane source
Subjects: Advanced Materials
Advanced Materials > Thermal Performance
Identification number/DOI: 10.1007/s10765-015-1863-x
Last Modified: 02 Feb 2018 13:13
URI: http://eprintspublications.npl.co.uk/id/eprint/6744

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