The development of thermal conductivity measurement apparatus
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 measuremen...
Saved in:
| Main Authors: | , |
|---|---|
| 格式: | Conference or Workshop Item |
| 出版: |
2010
|
| 主题: | |
| 在线阅读: | http://eprints.uthm.edu.my/4605/ http://eprints.uthm.edu.my/4605/1/National_Advanced_Materials_and_Manufacturing_Engineering_Conference_(NAMME%2C_2010)%2C_2.pdf |
| 标签: |
添加标签
没有标签, 成为第一个标记此记录!
|
| 总结: | 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. |
|---|