Investigation with rheological behavior of liquid paraffin/Al2O3 nanofluid: Experimental approach

Document Type : Research Paper

Authors

1 Department of Mechanical Engineering, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran

2 Shahrekord University, Engineering Faculty, PO Box 115, Shahrekord, Iran

3 Department of Mechanical Engineering, Kermanshah University of Technology, Kermanshah, Iran

Abstract

Liquid paraffin can be used as a coolant fluid in electronic and cutting devices due to its suitable capabilities such as electrical insulating, high heat capacity, chemical, and thermal stability, and high boiling point. In this study, the dynamic viscosity of paraffin containing the alumina nanoparticles has been examined experimentally. The nanofluids with different composition of alumina (0, 1, 2, and 3%) with the diameter of 20 nm were prepared by two-step method and tested by professional Brookfield rheometer in the temperature range of 20 oC to 60 oC and the shear rates of 12 s-1 up to 200 s-1. Experimental results indicated that the nano-lubricant behaves as Newtonian fluid in the volume fraction of 0 and 1% only at the temperatures of 50 and 60 oC. While it behaves as non-Newtonian fluid in the volume fraction of 2 and 3% for all measured temperatures. The results showed that the power law model represents the best curve fitting of the experimental data. Therefore, the coefficient values of power-law model including, consistency index and flow index were reported. Finally, an equation of relative viscosity based on the volume fraction and temperature of the combination was proposed by applying the curve fit technique on the experimental data.

Keywords


[1] Vasu, V. & Kumar, K.M. Nano-Micro Lett. (2011) 3: 209. https://doi.org/10.1007/BF03353674
[2] Khandekar S, Sankar MR, Agnihotri V, Ramkumar J. Nano-cutting fluid for enhancement of metal cutting performance. Materials and Manufacturing Processes. 2012 Sep 1;27(9):963-7.
[3] El Baradie MA. Cutting fluids: Part I. characterisation. Journal of materials processing technology. 1996 Jan 1;56(1-4):786-97.
[4] Astakhov VP. Tribology of metal cutting. Elsevier; 2006 Dec 18.
[5] Hetsroni G, Mosyak A, Segal Z, Ziskind G. A uniform temperature heat sink for cooling of electronic devices. International Journal of Heat and Mass Transfer. 2002 Jul 1;45(16):3275-86.
[6] Kole M, Dey TK. Thermal conductivity and viscosity of Al2O3 nanofluid based on car engine coolant. Journal of Physics D: Applied Physics. 2010 Jul 16;43(31):315501.
[7] Dardan E, Afrand M, Isfahani AM. Effect of suspending hybrid nano-additives on rheological behavior of engine oil and pumping power. Applied Thermal Engineering. 2016 Oct 25;109:524-34.
[8] Esfe MH, Afrand M, Gharehkhani S, Rostamian H, Toghraie D, Dahari M. An experimental study on viscosity of alumina-engine oil: effects of temperature and nanoparticles concentration. International Communications in Heat and Mass Transfer. 2016 Aug 1;76:202-8.
[9] Azmi WH, Sharma KV, Mamat R, Najafi G, Mohamad MS. The enhancement of effective thermal conductivity and effective dynamic viscosity of nanofluids–a review. Renewable and Sustainable Energy Reviews. 2016 Jan 1;53:1046-58.
[10] Ho CJ, Gao JY. Preparation and thermophysical properties of nanoparticle-in-paraffin emulsion as phase change material. International Communications in Heat and Mass Transfer. 2009 May 1;36(5):467-70.
[11] Motahar S, Nikkam N, Alemrajabi AA, Khodabandeh R, Toprak MS, Muhammed M. Experimental investigation on thermal and rheological properties of n-octadecane with dispersed TiO2 nanoparticles. International Communications in Heat and Mass Transfer. 2014 Dec 1;59:68-74.
[12] Hosseini SM, Vafajoo L, Ghasemi E, Salman BH. Experimental investigation the effect of nanoparticle concentration on the rheological behavior of paraffin-based nickel ferrofluid. International Journal of Heat and Mass Transfer. 2016 Feb 1;93:228-34.
[13] Sheikholeslami M, Ganji DD. Nanofluid convective heat transfer using semi analytical and numerical approaches: a review. Journal of the Taiwan Institute of Chemical Engineers. 2016 Aug 1;65:43-77.
[14] Santra AK, Sen S, Chakraborty N. Study of heat transfer augmentation in a differentially heated square cavity using copper–water nanofluid. International Journal of Thermal Sciences. 2008 Sep 1;47(9):1113-22.
[15] Dhaidan NS, Khodadadi JM, Al-Hattab TA, Al-Mashat SM. Experimental and numerical investigation of melting of phase change material/nanoparticle suspensions in a square container subjected to a constant heat flux. International Journal of Heat and Mass Transfer. 2013 Nov 1;66:672-83.
[16] Bashirnezhad K, Bazri S, Safaei MR, Goodarzi M, Dahari M, Mahian O, Dalkılıça AS, Wongwises S. Viscosity of nanofluids: a review of recent experimental studies. International Communications in Heat and Mass Transfer. 2016 Apr 1;73:114-23.
[17] Farsani RY, Raisi A, Nadooshan AA, Vanapalli S. Does nanoparticles dispersed in a phase change material improve melting characteristics?. International Communications in Heat and Mass Transfer. 2017 Dec 31;89:219-29.
[18] Murshed SS, Estellé P. A state of the art review on viscosity of nanofluids. Renewable and Sustainable Energy Reviews. 2017 Sep 1;76:1134-52.
[19] Ferrer G, Gschwander S, Solé A, Barreneche C, Fernández AI, Schossig P, Cabeza LF. Empirical equation to estimate viscosity of paraffin. Journal of Energy Storage. 2017 Jun 1;11:154-61.
[20] Sepyani K, Afrand M, Esfe MH. An experimental evaluation of the effect of ZnO nanoparticles on the rheological behavior of engine oil. Journal of Molecular Liquids. 2017 Jun 1;236:198-204.
[21] Nadooshan AA, Esfe MH, Afrand M. Evaluation of rheological behavior of 10W40 lubricant containing hybrid nano-material by measuring dynamic viscosity. Physica E: Low-dimensional Systems and Nanostructures. 2017 Aug 1;92:47-54.
[22] Fazlali A, Lashkarara S, Mohammadi AH. RHEOLOGICAL PROPERTIES OF PARAFFIN-BASED CO^ sub 3^ O^ sub 4^ NANO-FERROFLUID. Nanotechnology Research Journal. 2014 Jul 1;7(3/4):433.
[23] Rossetti F, Ranalli G, Faccenna C. Rheological properties of paraffin as an analogue material for viscous crustal deformation. Journal of Structural Geology. 1999 Apr 1;21(4):413-7.
[24] Peng DX, Kang Y, Hwang RM, Shyr SS, Chang YP. Tribological properties of diamond and SiO2 nanoparticles added in paraffin. Tribology international. 2009 Jun 1;42(6):911-7.
[25] Sharma SK, Gupta SM. Preparation and evaluation of stable nanofluids for heat transfer application: a review. Experimental Thermal and Fluid Science. 2016 Dec 1;79:202-12.
[26] Eastman JA, Choi SU, Li S, Yu W, Thompson LJ. Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles. Applied physics letters. 2001 Feb 5;78(6):718-20.
[27] Wang Y, Eli W, Zhang L, Gao H, Liu Y, Li P. A new method for surface modification of nano-CaCO3 and nano-Al2O3 at room temperature. Advanced Powder Technology. 2010 Mar 1;21(2):203-5.
[28] Shahsavar A, Bahiraei M. Experimental investigation and modeling of thermal conductivity and viscosity for non-Newtonian hybrid nanofluid containing coated CNT/Fe3O4 nanoparticles. Powder Technology. 2017 Aug 1;318:441-50.
[29] Hosseini SM, Fazlali A, Ghasemi E, Moghaddam HA, Salehi M. Rheological properties of a γ-Fe2O3 paraffin-based ferrofluid. Journal of Magnetism and Magnetic Materials. 2010 Dec 1;322(23):3792-6.
[30] Tajik Jamal-Abad M, Dehghan M, Saedodin S, Valipour MS, Zamzamian A. An experimental investigation of rheological characteristics of non-Newtonian nanofluids. Journal of Heat and Mass Transfer Research (JHMTR). 2014 May 1;1(1):17-23.
[31] Arasu A, Sasmito A, Mujumdar A. Thermal performance enhancement of paraffin wax with Al2O3 and CuO nanoparticles–a numerical study. Frontiers in Heat and Mass Transfer (FHMT). 2012 Jan 19;2(4).