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The development of thermal conductivity measurement apparatus

Yahaya , Mohd Yurzie Nazierul and Nordin , Normayati (2010) The development of thermal conductivity measurement apparatus. In: National Advanced Materials and Manufacturing Engineering Conference (NAMME), 25-26 May 2010, Batu Pahat, Johor.

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Abstract

Thermal conductivity is the fundamental material property that is essential for characterizing the heat transfer. The measurement of thermal conductivity includes the measurement of the heat flux and temperature difference. The difficulty of measurement is always associated with heat flux measurement. None of the thermal conductivity measurement instrument has provided in UTHM and this consequently a number of projects that involves measurement of thermal conductivity cannot be carried out. This study aims to design, fabricate and develop a reliable instrument to measure the thermal conductivity. The design of the instrument was the simplified of the Guarded Hot Plate Method but a plate has been changed with block to see the effects of thermal conductivity value. The Guarded Hot Plate Apparatus is the most accurate method used to measure thermal conductivity of engineering applications. In other words, that apparatus is suitable for engineering applications. The level of reliability that based on the accuracy and consistent will be proven by comparing the experimental value with the theoretical value. The decision was made up upon determining the thermal conductivity for aluminium to test the level of reliability of the thermal conductivity measurement instrument. The result of the experiment depicted that still a small difference between the theoretical value and experimental value, but the best part of the instrument is it able to present almost constant temperature value and thermal conductivity value against time. This depicted the exact level of this instrument compared to the existing instrument.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: thermal conductivity measurement apparatus;guarded hot plate method
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ1-162 Mechanical engineering and machinery
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Plant and Automotive Engineering
Depositing User: Mrs. Normayati Nordin
Date Deposited: 12 Dec 2013 06:35
Last Modified: 12 Dec 2013 06:35
URI: http://eprints.uthm.edu.my/id/eprint/4605
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