Investigation of viscosity of R123-TIO 2 nanorefrigerant

Mahbubul, I.M. and Saidur, Rahman and Amalina, M.A. (2012) Investigation of viscosity of R123-TIO 2 nanorefrigerant. International Journal of Mechanical and Materials Engineering, 7 (2). pp. 146-151. ISSN 18230334

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Nanorefrigerant is one kind of nanofluids. It is the mixture of nanoparticles with refrigerants. It has better heat transfer performance than traditional refrigerants. Recently, some researches have been done about nanorefrigerants. Most of them are related to thermal conductivity of these fluids. Viscosity also deserves as much consideration as thermal conductivity. Pumping power and pressure drop depends on viscosity. In this paper, the volumetric and temperature effects over viscosity of R123-TiO 2 nanorefrigerants have been studied for 5 to 20°C temperature and up to 2 vol. . The effect of pressure drop with the increase of viscosity has also been investigated. Based on the analysis it is found that viscosity of nanorefrigerant increased accordingly with the increase of nanoparticle volume concentrations and decreases with the increment of temperature. Furthermore, pressure drop augmented significantly with the intensification of volume concentrations and vapor quality. Therefore, low volume concentrations of nanorefrigerant are suggested for better performance of a refrigeration system.

Item Type: Article
Additional Information: Cited By (since 1996): 1 Export Date: 6 December 2012 Source: Scopus Language of Original Document: English Correspondence Address: Mahbubul, I. M.; Department of Mechanical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; email: References: Batchelor, G., The effect of Brownian motion on the bulk stress in a suspension of spherical particles (1977) Journal of Fluid Mechanics, 83 (1), pp. 97-117; Brinkman, H., The viscosity of concentrated suspensions and solutions (1952) The Journal of Chemical Physics, 20, p. 571; Chen, H., Ding, Y., He, Y., Tan, C., Rheological behaviour of ethylene glycol based titania nanofluids (2007) Chemical Physics Letters, 444 (4-6), pp. 333-337; Chen, H., Ding, Y., Tan, C., Rheological behaviour of nanofluids (2007) New Journal of Physics, 9 (10), p. 367; Choi, S., Developments and applications of non-newtonian flows, American Society of Mechanical Engineering (1995) New York, 231, pp. 99-105; Duangthongsuk, W., Wongwises, S., Measurement of temperature-dependent thermal conductivity and viscosity of TiO 2-water nanofluids (2009) Experimental Thermal and Fluid Science, 33 (4), pp. 706-714; Eastman, J.A., Phillpot, S., Choi, S., Keblinski, P., Thermal transport in nanofluids 1, Annu (2004) Rev. Mater. Res., 34, pp. 219-246; Einstein, A., Eine neue bestimmung der moleküldimensionen (1906) Annalen der Physik, 324 (2), pp. 289-306; (2011),, Accesed on 19/07Jiang, W., Ding, G., Peng, H., Measurement and model on thermal conductivities of carbon nanotube nanorefrigerants (2009) International Journal of Thermal Sciences, 48 (6), pp. 1108-1115; Krieger, I.M., A mechanism for non Newtonian flow in suspensions of rigid spheres, Trans (1959) Soc. Rheol., 3, pp. 137-152; Kulkarni, D.P., Das, D.K., Chukwu, G.A., Temperature dependent rheological property of copper oxide nanoparticles suspension (nanofluid) (2006) Journal of Nanoscience and Nanotechnology, 6 (4), pp. 1150-1154; Lemmon, E.W., McLinden, M.O., Huber, M.L., NIST Reference Fluid Thermodynamic and Transport Properties-Refprop 7.0, NIST Std (2002) Database., , Boulder; Lundgren, T.S., Slow flow through stationary random beds and suspensions of spheres (1972) Journal of Fluid Mechanics, 51 (2), pp. 273-299; Mahbubul, I.M., Saidur, R., Amalina, M.A., Latest developments on the viscosity of nanofluids (2012) International Journal of Heat and Mass Transfer, 55 (4), pp. 877-888; Mahbubul, I.M., Saidur, R., Amalina, M.A., Pressure drop characteristics of TiO 2-R123 nanorefrigerant in a circular tube (2011) Engineering e-Transaction, 6 (2), pp. 131-138; Müller-Steinhagen, H., Heck, K., A simple friction pressure drop correlation for two-phase flow in pipes (1986) Chemical Engineering and Processing, 20 (6), pp. 297-308; Namburu, P., Kulkarni, D., Misra, D., Das, D., Viscosity of copper oxide nanoparticles dispersed in ethylene glycol and water mixture (2007) Experimental Thermal and Fluid Science, 32 (2), pp. 397-402; Nguyen, C., Desgranges, F., Roy, G., Galanis, N., Mare, T., Boucher, S., Anguemintsa, H., Temperature and particle-size dependent viscosity data for water-based nanofluids-Hysteresis phenomenon (2007) International Journal of Heat and Fluid Flow, 28 (6), pp. 1492-1506; Ould Didi, M., Kattan, N., Thome, J., Prediction of two-phase pressure gradients of refrigerants in horizontal tubes (2002) International Journal of Refrigeration, 25 (7), pp. 935-947; Peng, H., Ding, G., Hu, H., Jiang, W., Zhuang, D., Wang, K., Nucleate pool boiling heat transfer characteristics of refrigerant/oil mixture with diamond nanoparticles (2010) International Journal of Refrigeration, 33 (2), pp. 347-358; Peng, H., Ding, G., Jiang, W., Hu, H., Gao, Y., Heat transfer characteristics of refrigerant-based nanofluid flow boiling inside a horizontal smooth tube (2009) International Journal of Refrigeration, 32 (6), pp. 1259-1270; Peng, H., Ding, G., Jiang, W., Hu, H., Gao, Y., Measurement and correlation of frictional pressure drop of refrigerant-based nanofluid flow boiling inside a horizontal smooth tube (2009) International Journal of Refrigeration, 32 (7), pp. 1756-1764; Raja, M., Arunachalam, R.M., Suresh, S., Experimental studies on heat transfer of alumina/water nanofluid in a shell and tube heat exchanger with wire coil insert (2012) International Journal of Mechanical and Materials Engineering, 7 (1), pp. 16-23; Saidur, R., Kazi, S.N., Hossain, M.S., Rahman, M.M., Mohammed, H.A., A review on the performance of nanoparticles suspended with refrigerants and lubricating oils in refrigeration systems (2011) Renewable and Sustainable Energy Reviews, 15 (1), pp. 310-323; Wang, K., Ding, G., Jiang, W., Development of nanorefrigerant and its rudiment property (2005) 8th International Symposium on Fluid Control, Measurement and Visualization, p. 13. , In: Chengdu, China
Uncontrolled Keywords: Nanofluid, Pressure drop, Temperature, Vapor quality, Volume concentration.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 03 Jul 2013 03:52
Last Modified: 25 Oct 2019 06:23

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