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

Autor: Jang Seok Pil, Hwang Kyo Sik, Kim Hyun Jin, Ha Hyo Jun, Lee Seung-Hyun, Rhee Chang-Kyu, Lee Gyoung-Ja, Kim Chang-Kyu, Lee Jaekeun, Kwon Younghwan, Kim Doohyun, Kim Soo Hyung, Koo Junemo, Hong Sung Wook, Choi Stephen, Choi Chul Jin, Lee Ji-Hwan, Lee Wook-Hyun, Lee Ki-Woong, Bae Hwa-Young
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Nanoscale Research Letters, Vol 6, Iss 1, p 258 (2011)
Druh dokumentu: article
ISSN: 1931-7573
1556-276X
Popis: 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.
Databáze: Directory of Open Access Journals
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