Analysis of oxide (Al2O3, CuO, and ZnO) and CNT nanoparticles disaggregation effect on the thermal conductivity and the viscosity of nanofluids

作者: Joohyun Lee , Yong-Jin Yoon , John K. Eaton , Kenneth E. Goodson , Seoung Jai Bai

DOI: 10.1007/S12541-014-0390-1

关键词:

摘要: Oxide and CNT nanoparticles were prepared characterized to understand the effect of disaggregation on thermal conductivity viscosity nanofluids through experimental theoretical analysis. The oxide contained spherical nanoparticles, including Al2O3, CuO, ZnO, multiwalled carbon nanotubes in deionized water. Aggregations numerous observed from Dynamic Light Scattering Scanning Electron Microscopy. Ultrasonication centrifugation made mechanically separate agglomerated nanoparticles. Nanoparticle size decreased by 15% with one hour sonication for diameters range 10∼100 nm methods showed 36% 40% reduction Al2O3/DI water CuO/DI nanofluid, respectively. A chemical based method using surfactants changing pH performed. significant was achieved a value 4.2. effects agglomeration examined three-level homogenization model. use hydrodynamic particle nanofluid shows an effective viscosity, when aspect ratio aggregation is below 4.1 2.5 CuO/water Al2O3/water

参考文章(29)
Ravi Prasher, Patrick E. Phelan, Prajesh Bhattacharya, Effect of aggregation kinetics on the thermal conductivity of nanoscale colloidal solutions (nanofluid). Nano Letters. ,vol. 6, pp. 1529- 1534 ,(2006) , 10.1021/NL060992S
Amir Heidari, Yong-Jin Yoon, Mi Kyoung Park, Woo-Tae Park, Julius Ming-Lin Tsai, High sensitive dielectric filled Lamé mode mass sensor Sensors and Actuators A-physical. ,vol. 188, pp. 82- 88 ,(2012) , 10.1016/J.SNA.2012.03.040
Andrej Lenert, Youngsuk Nam, Bekir S. Yilbas, Evelyn N. Wang, Focusing of phase change microparticles for local heat transfer enhancement in laminar flows International Journal of Heat and Mass Transfer. ,vol. 56, pp. 380- 389 ,(2013) , 10.1016/J.IJHEATMASSTRANSFER.2012.09.014
Patrick Phelan, Pawel Keblinski, William Evans, Ravi Prasher, Jacob Fish, Paul Meakin, Effect of aggregation and interfacial thermal resistance on thermal conductivity of nanocomposites and colloidal nanofluids International Journal of Heat and Mass Transfer. ,vol. 51, pp. 1431- 1438 ,(2008) , 10.1016/J.IJHEATMASSTRANSFER.2007.10.017
Yimin Xuan, Qiang Li, Heat transfer enhancement of nanofluids International Journal of Heat and Fluid Flow. ,vol. 21, pp. 58- 64 ,(2000) , 10.1016/S0142-727X(99)00067-3
Amir Heidari, Yong-Jin Yoon, Man I Lee, Lynn Khine, Mi Kyoung Park, Julius Ming Lin Tsai, A novel checker-patterned AlN MEMS resonator as gravimetric sensor Sensors and Actuators A-physical. ,vol. 189, pp. 298- 306 ,(2013) , 10.1016/J.SNA.2012.09.027
S. Kabelac, J. F. Kuhnke, HEAT TRANSFER MECHANISMS IN NANOFLUIDS -- EXPERIMENTS AND THEORY -- Annals of the Assembly for International Heat Transfer Conference 13. ,(2006) , 10.1615/IHTC13.P30.110
Yulong Ding, Hajar Alias, Dongsheng Wen, Richard A Williams, None, Heat transfer of aqueous suspensions of carbon nanotubes (CNT nanofluids) International Journal of Heat and Mass Transfer. ,vol. 49, pp. 240- 250 ,(2006) , 10.1016/J.IJHEATMASSTRANSFER.2005.07.009
Lazarus Godson, B Raja, D Mohan Lal, SEA Wongwises, None, Enhancement of heat transfer using nanofluids—An overview Renewable & Sustainable Energy Reviews. ,vol. 14, pp. 629- 641 ,(2010) , 10.1016/J.RSER.2009.10.004
A. A. Potanin, R. De Rooij, D. Van den Ende, J. Mellema, MICRORHEOLOGICAL MODELING OF WEAKLY AGGREGATED DISPERSIONS Journal of Chemical Physics. ,vol. 102, pp. 5845- 5853 ,(1995) , 10.1063/1.469317