CCT Supplementary comparison S2 on thermal conductivity measurements of insulating materials by guarded hot plate

Metrologia ◽  
2020 ◽  
Vol 57 (1A) ◽  
pp. 03003-03003
Author(s):  
Bruno Hay ◽  
Robert Zarr ◽  
Clark Stacey ◽  
Nikolay Sokolov ◽  
Leonel Lira Cortés ◽  
...  
1981 ◽  
pp. 31-40
Author(s):  
K.S. Kannan

Tujuan pengajian ini adalah untuk menentukan nilai kealiran haba bagi bahan-bahan penebat tempatan. Olih kerana kealiran haba hanya boleh diperolehi dengan cara ujikaji, satu radas ujikaji yang dikenali sebagai 'guarded hot plate' telah direkakan di dalam makmal. Kealiran haba bagi empat bahan-bahan penebat tempatan ditentukan dengan menggunakan radas tersebut. Keputusan yang didapati adalah agak memuaskan. Bagaimanapun, ada terdapat sedikit kekurangan dalam radas dan pada ujian yang telah dilaksanakan. The aim of this study is to determine the thermal conductivity of locally available insulating materials. Since the thermal conductivity can only be obtained by experimental methods, an experimental rig known as the guarded hot plate was fabricated in the laboratory. The thermal conductivity of four locally available insulating materials was determined using this apparatus. The results obtained were acceptable. However the apparatus and the actual test had a few short comings.


2016 ◽  
Vol 20 (suppl. 1) ◽  
pp. 321-329 ◽  
Author(s):  
Marijana Terzic ◽  
Nenad Milosevic ◽  
Nenad Stepanic ◽  
Slobodan Petricevic

This work presents the development of an experimental setup for measurements on of thermal conductivity of solid materials, such as ceramics, polymers, rubbers, glasses, biological materials, etc. whose thermal conductivity lies in the approximate range between 0.1 and 2 Wm-1K-1. The setup was designed on the principle of the single-sided guarded hot plate method. In order to find the optimal design for generation of traceable one-dimensional heat flux through an investigated 300?300 mm2 specimen, a numerical heat transfer FEM analysis was performed. The principal components of the measuring apparatus, such as hot plate with thermopile, cold plate and auxiliary hot plate were constructed according to the obtained results of simulations. Software for the control of experiment and data acquisition was developed using the LabVIEW programming environment.


2009 ◽  
Vol 6 (3) ◽  
pp. 479-488 ◽  
Author(s):  
Nenad Stepanic ◽  
Nenad Milosevic

This work considers the influence of finite thermal contact resistances which exist in thermal conductivity measurements of homogeneous and poor thermal conductive materials using the guarded hot plate method. As an example of correction method proposed in this work, different experimental results obtained from a standard reference material sample (with the conductivity of about 1 W/mK) have been presented.


Author(s):  
Gabriel Souza ◽  
Luís Felipe dos Santos Carollo ◽  
Sandro Metrevelle Marcondes de Lima e Silva

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