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Round-robin test on thermal conductivity measurement of ZnO nanofluids and comparison of experimental results with theoretical bounds

Lee, Wook-Hyun and Rhee, Chang-Kyu and Koo, Junemo and Lee, Jaekeun and Jang, Seok Pil and Choi, Stephen US and Lee, Ki-Woong and Bae, Hwa-Young and Lee, Gyoung-Ja and Kim, Chang-Kyu and Hong, Sung Wook and Kwon, Younghwan and Kim, Doohyun and Kim, Soo Hyung and Hwang, Kyo Sik and Kim, Hyun Jin and Ha, Hyo Jun and Lee, Seung-Hyun and Choi, Chul Jin and Lee, Ji-Hwan (2011) Round-robin test on thermal conductivity measurement of ZnO nanofluids and comparison of experimental results with theoretical bounds. Nanoscale Research Letters, 6 (1). pp. 1-11.

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Official URL: http://www.nanoscalereslett.com/content/6/1/258

Abstract

Ethylene glycol (EG)-based zinc oxide (ZnO) nanofluids containing no surfactant have been manufactured by one-step pulsed wire evaporation (PWE) method. Round-robin tests on thermal conductivity measurements of three samples of EG-based ZnO nanofluids have been conducted by five participating labs, four using accurate measurement apparatuses developed in house and one using a commercial device. The results have been compared with several theoretical bounds on the effective thermal conductivity of heterogeneous systems. This study convincingly demonstrates that the large enhancements in the thermal conductivities of EG-based ZnO nanofluids tested are beyond the lower and upper bounds calculated using the models of the Maxwell and Nan et al. with and without the interfacial thermal resistance.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:10921
Deposited By:JNCASR
Deposited On:18 Oct 2011 08:20
Last Modified:18 Oct 2011 08:20

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