title: Round-robin test on thermal conductivity measurement of ZnO nanofluids and comparison of experimental results with theoretical bounds.
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.
authors.affiliation: Mechanical and Industrial Engineering Department, University of Illinois at Chicago, Chicago, IL, USA. suschoi@uic.edu.
authors.forename: Wook-Hyun
authors.initials: WH
authors.lastname: Lee
authors.forename: Chang-Kyu
authors.initials: CK
authors.lastname: Rhee
authors.forename: Junemo
authors.initials: J
authors.lastname: Koo
authors.forename: Jaekeun
authors.initials: J
authors.lastname: Lee
authors.forename: Seok Pil
authors.initials: SP
authors.lastname: Jang
authors.forename: Stephen Us
authors.initials: SU
authors.lastname: Choi
authors.forename: Ki-Woong
authors.initials: KW
authors.lastname: Lee
authors.forename: Hwa-Young
authors.initials: HY
authors.lastname: Bae
authors.forename: Gyoung-Ja
authors.initials: GJ
authors.lastname: Lee
authors.forename: Chang-Kyu
authors.initials: CK
authors.lastname: Kim
authors.forename: Sung Wook
authors.initials: SW
authors.lastname: Hong
authors.forename: Younghwan
authors.initials: Y
authors.lastname: Kwon
authors.forename: Doohyun
authors.initials: D
authors.lastname: Kim
authors.forename: Soo Hyung
authors.initials: SH
authors.lastname: Kim
authors.forename: Kyo Sik
authors.initials: KS
authors.lastname: Hwang
authors.forename: Hyun Jin
authors.initials: HJ
authors.lastname: Kim
authors.forename: Hyo Jun
authors.initials: HJ
authors.lastname: Ha
authors.forename: Seung-Hyun
authors.initials: SH
authors.lastname: Lee
authors.forename: Chul Jin
authors.initials: CJ
authors.lastname: Choi
authors.forename: Ji-Hwan
authors.initials: JH
authors.lastname: Lee