Studies on few Water Based Nanofluids Behavior at Heating

Abstract:

Application of nanoparticles provides an effective way of improving heat transfer characteristics of fluids. Particles less than 100 nm in diameter exhibit different properties from those of conventional solids. Compared with micron-sized particles, nanophase powders have much larger relative surface areas and a great potential for heat transfer enhancement. Some researchers tried to suspend nanoparticles into fluids to form high effective heat transfer fluids. Some preliminary experimental results showed that increase in thermal conductivity of approximately 60% can be obtained for some nanofluids consisting of water and 5 vol% CuO nanoparticles. So, the thermal conductivity of nanofluid was found to be strongly dependent on the nanoparticle volume fraction. So far it has been an unsolved problem to develop a sophisticated theory to predict thermal conductivity of nanofluids, although there are some semi empirical correlations to calculate the apparent conductivity of two-phase mixture. In this article, several correlations for predicting the nanofluid thermal conductivity will be compared and results will be discussed for three water based nanofluids.

• Periodical: Advanced Materials Research (Volume 1128)
• Pages: 384-389
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1128.384
• Online since: October 2015
• Authors: Madalina Georgiana Moldoveanu*, Alina Adriana Minea
• Keywords: Nanofluid, Specific Heat, Theoretical, Thermal

References

[1] B.H. Salman, H.A. Mohammed, A. Sh Kherbeet, Numerical and experimental investigation of heat transfer enhancement in a microtube using nanofluids. International Communications in Heat and Mass Transfer 59 (2014) 88-100.

DOI: 10.1016/j.icheatmasstransfer.2014.10.017

[2] A.A. Minea, Uncertainties in modeling thermal conductivity of laminar forced convection heat transfer with water alumina nanofluids. International Journal of Heat and Mass Transfer 68 (2014) 78-84.

DOI: 10.1016/j.ijheatmasstransfer.2013.09.018

[3] C. Kleinstreuer, F. Yu, Experimental and theoretical studies of nanofluid thermal conductivity enhancement: a review, Nanoscale Research Letters 161(2011) 1-6.

DOI: 10.1186/1556-276x-6-229

[4] W. Yu, D.M. France, E.V. Timofeeva, D. Singh, J.L. Routbort, Thermophysical property-related comparison criteria for nanofluid heat transfer enhancement in turbulent flow, Applied Physics Letters 96 (2010) 1-3.

DOI: 10.1063/1.3435487

[5] W. Yu, D.M. France, E.V. Timofeeva, D. Singh, J.L. Routbort, Comparative review of turbulent heat transfer of nanofluids, International Journal of Heat and Mass Transfer 55 (2012) 5380–5396.

DOI: 10.1016/j.ijheatmasstransfer.2012.06.034

[6] R.S. Vajjha, D.K. Das, A review and analysis on influence of temperature and concentration of nanofluids on thermophysical properties, heat transfer and pumping power, International Journal of Heat and Mass Transfer 55 (2012) 4063–4078.

DOI: 10.1016/j.ijheatmasstransfer.2012.03.048

[7] W. Yu, D.M. France, E.V. Timofeeva, D. Singh, J.L. Routbort, Comparative review of turbulent heat transfer of nanofluids, International Journal of Heat and Mass Transfer 55 (2012) 5380–5396.

DOI: 10.1016/j.ijheatmasstransfer.2012.06.034

[8] R.S. Vajjha, D.K. Das, Measurements of Thermophysical Properties of Nanofluids and Computation of Heat Transfer Characteristics, LAP Lambert Academic Publishing, London, (2010).

[9] V. Bianco, O. Manca, S. Nardini, Performance analysis of turbulent convection heat transfer of Al2O3 water-nanofluid in circular tubes at constant wall temperature, Energy 3 (2014) 1-11.

DOI: 10.1016/j.energy.2014.09.025

[10] J. Sarkar, A critical review on convective heat transfer correlations of nanofluids, Renew. Sustain. Energy Rev. 15 (2011) 3271–3277.

DOI: 10.1016/j.rser.2011.04.025

[11] J. Buongiorno, Convective transport in nanofluids, Journal of Heat Transfer 128 (2006) 240–250.

DOI: 10.1115/1.2150834

[12] R.L. Hamilton, O.K. Crosser, Thermal conductivity of heterogeneous two component system, I and EC Fundamentals 1 (1962) 187–191.

[13] X. Zhang, H. Gu, M. Fujii, Effective thermal conductivity and thermal diffusivity of nanofluids containing spherical and cylindrical nanoparticles, Journal of Applied Physics 100 (2006) 1–5.

DOI: 10.1063/1.2259789

[14] H. Brinkman, The viscosity of concentrated suspensions and solutions, J. Chem. Phys. 20 (1952) 571.

[15] C.H. Li, G.P. Peterson. Experimental investigation of temperature and volume fraction variations on the effective thermal conductivity of nanoparticle suspensions (nanofluids). Journal of Applied Physics 99 (2006) 084314.

DOI: 10.1063/1.2191571

[16] H.E. Patel, T. Sundararajan, S.K. Das, An experimental investigation into the thermal conductivity enhancement in oxide and metallic nanofluids. Journal of Nanoparticle Research 12 (2010) 1015–1031.

DOI: 10.1007/s11051-009-9658-2

[17] A.A. Minea, Simulation of Nanofluids Turbulent Forced Convection at High Reynolds Number: A Comparison Study of Thermophysical Properties Influence on Heat Transfer Enhancement, Flow Turbulence Combust (2015) 94 555–575.

DOI: 10.1007/s10494-014-9590-0

[18] Y.M. Xuan, Q. Li, Investigation on convective heat transfer and flow features of nanofluids. Journal of Heat Transfer 125 (2003) 151-155.

DOI: 10.1115/1.1532008