A New Numerically Improved Transient Technique for Measuring Thermal Properties of Anisotropic Materials

被引：2

作者：

Malinaric, Svetozar ^{[1
]}

Bokes, Peter ^{[2
]}

Bulatovic, Goran ^{[2
]}

机构：

[1] Constantine Philosopher Univ Nitra, Dept Phys, Trieda Andreja Hlinku 1, Nitra 94974, Slovakia

[2] Slovak Univ Technol Bratislava, Inst Nucl & Phys Engn, Fac Elect Engn & Informat Technol, Ilkovicova 3, Bratislava 84104, Slovakia

来源：

THERMO | 2024年 / 4卷 / 03期

关键词：

thermal conductivity; thermal diffusivity; extended dynamic plane source method; modified dynamic plane source method; finite element method; anisotropy; PLANE SOURCE TECHNIQUE; THEORETICAL ACCURACY; CONDUCTIVITY; DIFFUSIVITY; HEAT; COMPOSITES; SENSOR;

D O I：

10.3390/thermo4030021

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A new transient technique of the thermal conductivity and diffusivity measurement for anisotropic materials is presented and validated. It is based on measuring the through-plane properties using the extended dynamic plane source (EDPS) method and in-plane conductivity employing the transient plane source (TPS) and modified dynamic plane source (MDPS) methods. The key advantage of this technique is that only one pair of specimens is required for measurements. While the EDPS method is implemented on real measurements, the TPS and MDPS are applied to the finite elements method (FEM) simulation of the experiment. The accuracy of the results is enhanced by the application of the FEM and is better than 1% for materials with through-plane conductivity of less than 2 W m-1 K-1 and a specimen thickness of 9 mm.

引用

页码：394 / 406

页数：13

共 30 条

[1]

[Anonymous], 2008, Plastics-Determination of Thermal Conductivity and Thermal Diffusivity-Part 2: Transient Plane Heat Source (Hot Disc) Method

[2] Determination of specific heat capacity by transient plane source [J].

Bergen, Axel ;

Adl-Zarrabi, Bijan ;

Hagentoft, Carl-Eric .

FRONTIERS OF ARCHITECTURAL RESEARCH, 2013, 2 (04) :476-482

[3] Parameter estimations for measurements of thermal transport properties with the hot disk thermal constants analyzer [J].

Bohac, V ;

Gustavsson, MK ;

Kubicar, L ;

Gustafsson, SE .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2000, 71 (06) :2452-2455

[4] An improved transient plane source technique and methodology for measuring the thermal properties of anisotropic materials [J].

Elkholy, Ahmed ;

Sadek, Hossam ;

Kempers, Roger .

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2019, 135 :362-374

[5]

Elmer, An Open Source Multiphysical Simulation Software

[6] Predictions of effective thermal conductivities for three-dimensional four-directional braided composites using the lattice Boltzmann method [J].

Fang, Wen-Zhen ;

Chen, Li ;

Gou, Jian-Jun ;

Tao, Wen-Quan .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2016, 92 :120-130

[7] Gmsh: A 3-D finite element mesh generator with built-in pre- and post-processing facilities [J].

Geuzaine, Christophe ;

Remacle, Jean-Francois .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 2009, 79 (11) :1309-1331

[8] Hot strip method:: application to thermal characterisation of orthotropic media [J].

Gobbé, C ;

Iserna, S ;

Ladevie, B .

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2004, 43 (10) :951-958

[9]

Gustafsson S.E., 2000, Patent No. [WO2000070333A1, 2000070333]

[10] TRANSIENT PLANE SOURCE TECHNIQUES FOR THERMAL-CONDUCTIVITY AND THERMAL-DIFFUSIVITY MEASUREMENTS OF SOLID MATERIALS [J].

GUSTAFSSON, SE .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1991, 62 (03) :797-804

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