Inter-laboratory comparison on thermal conductivity measurements by the guarded hot plate method between LNE and Institute VINČA

IF 1.1 4区工程技术 Q4 Engineering

High Temperatures-high Pressures Pub Date : 2021-01-01 DOI:10.32908/hthp.v50.1001

B. Hay, N. Milošević, J. Hameury, N. Stepanić, G. Failleau, Y. Garcia, A. Koenen, J. Filtz

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引用次数: 0

Abstract

An inter-laboratory comparison has been organized between LNE and Institute VINČA, respectively French National Metrology Institute and Serbian Designated Institute for thermal properties metrology, on thermal conductivity measurements by the guarded hot plate method. The main objective was to validate the measurement capabilities of VINČA in terms of thermal conductivity in the temperature range from 10 °C to 50 °C by using the facility improved in the frame of the European project Eura-Thermal. The measurements were carried out on expanded polystyrene boards using guarded hot plate apparatuses (two-specimen GHP apparatuses) in accordance with the international standard ISO 8302. The measurement programme was defined taking into account the major characteristics of the guarded hot plate apparatuses used, such as specimen dimensions and temperature and thermal conductivity ranges. Specimens were machined by LNE from a same batch for both participants. Prior to the measurements, the homogeneity of the set of specimens, as well as the influence of a variation of density of the expanded polystyrene on the thermal conductivity measurements were studied by VINČA.

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LNE和研究所用保护热板法测量导热系数的实验室间比较VINČA

LNE和法国国家计量研究所VINČA和塞尔维亚指定的热特性计量研究所就用保护热板法测量热导率进行了实验室间比较。主要目的是通过使用欧洲项目Eura-Thermal框架中改进的设备，验证VINČA在10°C至50°C温度范围内的热导率测量能力。根据国际标准ISO 8302，使用防护热板仪器(双试样GHP仪器)在膨胀聚苯乙烯板上进行测量。测量程序的定义考虑了所使用的保护热板设备的主要特性，如试样尺寸、温度和导热系数范围。两个参与者的标本都是由同一批次的LNE加工的。在测量之前，通过VINČA研究了试样的均匀性，以及膨胀聚苯乙烯密度变化对导热系数测量的影响。

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来源期刊

High Temperatures-high Pressures THERMODYNAMICS-MECHANICS

CiteScore

1.00

自引率

9.10%

发文量

期刊介绍： High Temperatures – High Pressures (HTHP) is an international journal publishing original peer-reviewed papers devoted to experimental and theoretical studies on thermophysical properties of matter, as well as experimental and modelling solutions for applications where control of thermophysical properties is critical, e.g. additive manufacturing. These studies deal with thermodynamic, thermal, and mechanical behaviour of materials, including transport and radiative properties. The journal provides a platform for disseminating knowledge of thermophysical properties, their measurement, their applications, equipment and techniques. HTHP covers the thermophysical properties of gases, liquids, and solids at all temperatures and under all physical conditions, with special emphasis on matter and applications under extreme conditions, e.g. high temperatures and high pressures. Additionally, HTHP publishes authoritative reviews of advances in thermophysics research, critical compilations of existing data, new technology, and industrial applications, plus book reviews.