Experimental investigation of relative thermal conductivity of MWCNTs-CuO/Water nanofluids

Document Type : Persian

Authors

1 MSc Student, Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Isfahan, Iran

2 Assistant Professor, Department of Mechanical Engineering, KhomeiniShahr Branch, Islamic Azad University, Isfahan, Iran

3 Assistant Professor, Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Isfahan, Iran

Abstract

 This work presents a model for calculating the effective ‎thermal conductivity of nanofluids. The proposed model ‎includes the effects of nanoparticles and thermal conductivity ‎base fluid.We will focus on experimental of the volume ‎concentration parameter and temperature on thermal ‎conductivity, nano-fluid combination and Multi-Walled ‎Carbon nanotubes-Oxide / Copper-paid deionized Water. This ‎water-based nanofluids, For two-step volume fractions of the ‎‎0.1, 0.2, 0.6 Percentage produced And then, Effective thermal ‎conductivity is measured precisely. In order to measure the ‎thermal conductivity of nanofluids. To measure the thermal ‎conductivity coefficient in THW method, KD2-pro and KS1 ‎probe was used, also with the fluid significantly enhancement ‎shows in thermal conductivity coefficient. Also with the fluid ‎significantly enhancement shows in thermal conductivity ‎coefficient. In lower volume fractions we observed ‎significantly increase in thermal conductivity and receive high ‎degree thermal. Due to the lack of similar studies Due to the ‎lack of similar studies to comprehensively and inefficient of ‎classical thermal conductivity, In order to estimate the thermal ‎conductivity of nanofluids An empirical model that estimates ‎the thermal conductivity of nanofluids model with deviation ‎margin is very low‏‏

Keywords

References

[1] Halelfadl. S, Estellé. P, Aladag. B, Doner. N, and Maré. T, “Viscosity of carbon nanotubes water-based nano fl uids : In fl uence of concentration and temperature,” Vol. 71, pp.111-117, 2013.
[2] Hosseini. M and Ghader. S, “A model for temperature and particle volume fraction effect on nanofluid viscosity,” J. Mol. Liq., Vol. 153, no. 2–3, pp. 139–145, May 2010.
[3] Liu. J, Wang. F, Zhang. L, Fang. X, and Zhang. Z, “Thermodynamic properties and thermal stability of ionic liquid-based nanofluids containing graphene as advanced heat transfer fluids for medium-to-hightemperature applications,” Renew. Energy, Vol. 63, pp. 519–523, Mar. 2014.
[4] Xuan. Y, Li. Q, Heat Transfer Enhancement of Nanofluids, Int. J. Heat Fluid Flow, Vol. 21, .2000,pp. 158-64.
[5] Lee. S, Choi. S.U.-S, Li. S, Eastman. J.A, Measuring Thermal Conductivity of Fluids.Containing Oxide Nanoparticles, J. of Heat Transfer, Vol. 121, 1999, pp. 280- 289.
[6] Masuda. H, Ebata. A, Teramae. K, Hishinuma. N, Alternation of Thermal Conductivity and Viscosity of Liquid by Dispersing Ultra-Fine Particles (dispersion of Al2O3, SiO2 and TiO2 ultra-fine particles) , Netsu Bussei, Vol. 4, 1993, pp. 227- 233.
[7] Xuan. Y, Roetzel. W, Conceptions for Heat Transfer Correlation of Nanofluids,International Journal of Heat and Mass Transfer, Vol. 43, 2000, pp. 3701,3707.
[8] Singh. A. K, Thermal Conductivity of Nanofluids, Defence Science Journal, Vol. 58, 2008, .pp. 600-607
[9] Esfe. M. H and Saedodin. S, “Experimental investigation and proposed correlations for temperature- dependent thermal conductivity enhancement of ethylene glycol based nanofluid containing ZnO nanoparticles,” J.Heat Mass Transf. Res., vol. 1, no. 2013, pp. 47-54, 2014
[10] Paul. G, Sarkar. S, Pal. T, Das. P. K, and Manna. I, “Concentration and size dependence of nano-silver dispersed water based nanofluids,” J. Colloid Interface Sci., vol.317, no. 1, pp. 20–27, 2012.
[11] Pastoriza-Gallego. M. J, Casanova. C, Legido. J. L, and Piñeiro. M. M, “CuO in water nanofluid: Influence of particle size and polydispersity on volumetric behaviour and viscosity,” Fluid Phase Equilib., vol. 300, no.1-2 , pp. 188–196, Jan. 2011.
[12] Abbaspoursani. K, “An Improved Model for Prediction of the Effective Thermal Conductivity of Nanofluids.” p. 4, 2011.
[13] Teng T.-P, Hung. Y.-H, Teng T.-C, Mo. H.-E, and Hsu. H.G, “The effect of alumina/water nanofluid particle size on thermal conductivity,” Appl. Therm. Eng., vol. 30, no. 14–15, pp. 2213–2218, Oct. 2010.
[14] Michaelides. E. E. (Stathis), Nanofluidics Thermodynamic and Transport Properties. Springer Cham Heidelberg New York Dordrecht London, 2014.
[15] Ghadimi. A and Metselaar I. H, “The influence of surfactant and ultrasonic processing on improvement of stability, thermal conductivity and viscosity of titania nanofluid,” Exp. Therm. Fluid Sci., vol. 51, pp. 1–9, Nov. 2013.
[16] Xiang-Qi Wang, Mujumdar. Arun S, Heat Transfer Characteristics of Nanofluids: a review, International Journal of Thermal Sciences, Vol. 46, 2007, pp. 1-19.
[17] Hemmat Esfe. M, Saedodin. S, “An experimental investigation and new correlations of viscosity of ZnO-EG nanofluid at various temperatures and different solid volume fractions,” Exp. Therm. Fluid Sci., vol. 55, pp. 1–5, 2014.
[18] Dmtfb. S, “ADVANCED CLAMP-ON TRANSIT-TIME ULTRASONIC FLOW METER FOR ACCURATE FLOW MEASUREMENT Features : Applications : Measurement Principle:,” no. 01, pp. 1–5.
Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering
Volume 9, Issue 4 - Serial Number 28
January 2017
Pages 595-602

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