Research and development of measurement device for thermal conductivity of nanofluids

This research aims to develop a device for measuring thermal conductivity of nanofluid using transient hot-wire methodology. The proposed measurement system comprises of sensing wires coupled with an electrical measurement unit kept in a constant-temperature environment. The wires are made of nickel...

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Bibliographic Details
Published in:Journal of physics. Conference series 2005-01, Vol.13 (1), p.55-58
Main Authors: Jwo, C S, Teng, T P, Hung, C J, Guo, Y T
Format: Article
Language:English
Subjects:
Conductivity
Copper oxides
Electrical measurement
Heat conductivity
Heat transfer
Insulation
Measuring instruments
Nanofluids
Nanoparticles
Nickel chromium alloys
Physics
Polytetrafluoroethylene
R&D
Research & development
Thermal conductivity
Units of measurement
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Summary:This research aims to develop a device for measuring thermal conductivity of nanofluid using transient hot-wire methodology. The proposed measurement system comprises of sensing wires coupled with an electrical measurement unit kept in a constant-temperature environment. The wires are made of nickel-chromium alloy a coating with Teflon for insulation. Enhanced ratio of thermal conductivity in a nanofluid is calculated from the difference in electrical parameters with and without CuO nanoparticles added. The results show that thermal conductivities are enhanced by 5.8% and 9.6% when CuO nanoparticles of 1.1%wt and 2.2%wt are added, respectively. Resultant data was then compared with that obtained by two other measurement devices. The difference in measurements was within 5%. This proves that the system developed in this study can perform effective measurement of thermal conductivity of nanofluids.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/13/1/013