Rheological behaviour of ethylene glycol-titanate nanotube nanofluids
Source abstract
Abstract
Experimental work has been performed on the rheological behaviour of ethylene glycol based nanofluids containing titanate nanotubes over 20-60 °C and a particle mass concentration of 0-8%. It is found that the nanofluids show shear-thinning behaviour particularly at particle concentrations in excess of ~2%. Temperature imposes a very strong effect on the rheological behaviour of the nanofluids with higher temperatures giving stronger shear thinning. For a given particle concentration, there exists a certain shear rate below which the viscosity increases with increasing temperature, whereas the reverse occurs above such a shear rate. The normalised high-shear viscosity with respect to the base liquid viscosity, however, is independent of temperature. Further analyses suggest that the temperature effects are due to the shear-dependence of the relative contributions to the viscosity of the Brownian diffusion and convection. The analyses also suggest that a combination of particle aggregation and particle shape effects is the mechanism for the observed high-shear rheological behaviour, which is also supported by the thermal conductivity measurements and analyses. © 2009 Springer Science+Business Media B.V.
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Research context
OpenAlex topics: Nanofluid Flow and Heat Transfer · Rheology and Fluid Dynamics Studies · Fractional Differential Equations Solutions
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References (47)
Show source-provided references
1. Abdulagatov MI, Azizov ND (2006) Experimental study of the effect of temperature, pressure and concentration on the viscosity of aqueous NaBr solutions. J Solut Chem 35(5):705–738. doi: 10.1007/s10953-006-9020-610.1007/s10953-006-9020-6 ↗
2. Barnes HA, Hutton JF, Walters K (1989) An introduction to rheology. Elsevier Science B.V., Netherlands
3. Bavykin DV, Parmon VN, Lapkin AA, Walsh FC (2004) The effect of hydrothermal conditions on the mesoporous structure of TiO2 nanotubes. J Mater Chem 14(22):3370–337710.1039/b406378c ↗
4. Bird RB, Steward WE and Lightfoot EN (2002) Transport Phenomena, 2nd edn. Wiley, New York
5. Brenner H, Condiff DW (1974) Transport mechanics in systems of orientable particles, Part IV. Convective Transprort. J Colloid Inter Sci 47(1):199–26410.1016/0021-9797(74)90093-9 ↗
6. Chen HS, Ding YL, He YR, Tan CQ (2007a) Rheological behaviour of ethylene glycol based titania nanofluids. Chem Phys Lett 444(4–6):333–33710.1016/j.cplett.2007.07.046 ↗
7. Chen HS, Ding YL, Tan CQ (2007b) Rheological behaviour of nanofluids. New J Phys 9(367):1–25
8. Chen HS, Yang W, He YR, Ding YL, Zhang LL, Tan CQ, Lapkin AA, Bavykin DV (2008) Heat transfer and flow behaviour of aqueous suspensions of titanate nanotubes under the laminar flow conditions. Powder Technol 183:63–7210.1016/j.powtec.2007.11.014 ↗
9. Choi SUS (1995) Enhancing thermal conductivity of fluids with nanoparticles In: Siginer DA, Wang HP (eds) Developments applications of non-newtonian flows, FED-vol 231/MD-vol 66. ASME, New York, pp 99–105
10. Chow TS (1993) Viscosities of concentrated dispersions. Phys Rev E 48:1977–198310.1103/PhysRevE.48.1977 ↗
11. Das SK, Putra N, Roetzel W (2003) Pool boiling characteristics of nano-fluids. Int J Heat Mass Transfer 46:851–86210.1016/S0017-9310(02)00348-4 ↗
12. Ding YL, Alias H, Wen DS, Williams RA (2006) Heat transfer of aqueous suspensions of carbon nanotubes (CNT nanofluids). Int J Heat Mass Transf 49(1–2):240–25010.1016/j.ijheatmasstransfer.2005.07.009 ↗
13. Doi M, Edwards SF (1978a) Dynamics of rod-like macromolecules in concentrated solution, Part 1. J Colloid Sci 74:560–570
14. Doi M, Edwards SF (1978b) Dynamics of rod-like macromolecules in concentrated solution, Part 2. J Colloid Sci 74:918–932
15. Eastman JA, Choi SUS, Li S, Yu W, Thompson LJ (2001) Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles. Appl Phys Lett 78:718–72010.1063/1.1341218 ↗
16. Egres RG, Wagner NJ (2005) The rheology and microstructure of acicular precipitated calcium carbonate colloidal suspensions through the shear thickening transition. J Rheol 49:719–74610.1122/1.1895800 ↗
17. Einstein A (1906) Eine neue Bestimmung der Molekul-dimension (a new determination of the molecular dimensions). Annal der Phys 19(2):289–30610.1002/andp.19063240204 ↗
18. Einstein A (1911) Berichtigung zu meiner Arbeit: Eine neue Bestimmung der Molekul-dimension (correction of my work: a new determination of the molecular dimensions). Ann der Phys 34(3):591–59210.1002/andp.19113390313 ↗
19. Goodwin JW, Hughes RW (2000) Rheology for chemists—an introduction. The Royal Society of Chemistry, UK
20. Haas W, Zrinyi M, Kilian HG, Heise B (1993) Structural analysis of anisometric colloidal iron(III)-hydroxide particles and particle-aggregates incorporated in poly(vinyl-acetate) networks. Colloid Polym Sci 271:1024–103410.1007/BF00659291 ↗
21. Hamilton RL, Crosser OK (1962) Thermal Conductivity of heterogeneous two-component systems. I&EC Fundam 125(3):187–19110.1021/i160003a005 ↗
22. He YR, Jin Y, Chen HS, Ding YL, Cang DQ (2007) Heat transfer and flow behaviour of aqueous suspensions of TiO2 nanoparticles (nanofluids) flowing upward through a vertical pipe. Int J Heat Mass Transf 50(11–12):2272–2281
23. Hobbie EK, Fry DJ (2006) Nonequilibrium phase diagram of sticky nanotube suspensions. Phys Rev Lett 97:03610110.1103/PhysRevLett.97.036101 ↗
24. Keblinski P, Eastman JA and Cahill DG (2005) Nanofluids for thermal transport, Mater Today, June Issue, 36–4410.1016/S1369-7021(05)70936-6 ↗
25. Krishnamurthy S, Lhattacharya P, Phelan PE, Prasher RS (2006) Enhanced mass transport of in nanofluids. Nano Lett 6(3):419–42310.1021/nl0522532 ↗
26. Kwak K, Kim C (2005) Viscosity and thermal conductivity of copper oxide nanofluid dispersed in ethylene glycol. Korea-Aust Rheol J 17(2):35–40
27. Larson RG (1999) The structure and rheology of complex fluids. Oxford University Press, New York
28. Larson RG (2005) The rheology of dilute solutions of flexible polymers: progress and problems. J Rheol 49:1–7010.1122/1.1835336 ↗
29. Lee D, Kim J, Kim B (2006) A new parameter to control heat transport in nanofluids: surface charge state of the particle in suspension. J Phys Chem B 110:4323–432810.1021/jp057225m ↗
30. Lin JM, Lin TL, Jeng U, Zhong Y, Yeh C, Chen T (2007) Fractal aggregates of fractal aggregates of the Pt nanoparticles synthesized by the polyol process and poly(N-vinyl-2-pyrrolidone) reduction. J Appl Crystallogr 40:s540–s54310.1107/S0021889807004426 ↗
31. Micali N, Villari V, Castriciano MA, Romeo A, Scolaro LM (2006) From fractal to nanorod porphyrin J-aggregates. Concentration-induced tuning of the aggregate size. J Phys Chem B 110:8289–829510.1021/jp060730e ↗
32. Mohraz A, Moler DB, Ziff RM, Solomon MJ (2004) Effect of monomer geometry on the fractal structure of colloidal rod aggregates. Phys Rev Lett 92:15550310.1103/PhysRevLett.92.155503 ↗
33. Murshed SMS, Leong KC, Yang C (2005) Enhanced thermal conductivity of TiO2-water based nanofluids. Int J Therm Sci 44:367–37310.1016/j.ijthermalsci.2004.12.005 ↗
34. Nan CW, Birringer R, Clarke DR, Gleiter H (1997) Effective thermal conductivity of particulate composites with interfacial thermal resistance. J Appl Phys 81(10):6692–669910.1063/1.365209 ↗
35. Nan CW, Shi Z, Lin Y (2003) A simple model for thermal conductivity of carbon nanotube-based composites. Chem Phys Lett 375(5–6):666–66910.1016/S0009-2614(03)00956-4 ↗
36. Pak BC, Cho YI (1998) Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles. Exp Heat Transf 11:150–170
37. Prasher R, Song D, Wang J (2006a) Measurements of nanofluid viscosity and its implications for thermal applications. Appl Phys Lett 89:133108-1-3
38. Prasher R, Phelan PE, Bhattacharya P (2006b) Effect of aggregation kinetics on thermal conductivity of nanoscale colloidal solutions (nanofluids). Nano Lett 6(7):1529–153410.1021/nl060992s ↗
39. Russel WB, Saville DA, Scholwater WR (1991) Colloidal dispersions. Cambridge University Press, Cambridge
40. Waite TD, Cleaver JK, Beattie JK (2001) Aggregation kinetics and fractal structure of gamma-alumina assemblages. J Colloid Interface Sci 241:333–33910.1006/jcis.2001.7694 ↗
41. Wang XQ, Mujumdar AS (2007) Heat transfer characteristics of nanofluids: a review. Int J Therm Sci 46:1–1910.1016/j.ijthermalsci.2006.06.010 ↗
42. Wang XW, Xu XF, Choi SUS (1999) Thermal conductivity of nanoparticle–fluid mixture. J Thermphys Heat Transf 13:47410.2514/2.6486 ↗
43. Wang BX, Zhou LP, Peng XF (2003) A fractal model for predicting the effective thermal conductivity of liquid with suspension of nanoparticles. Int J Heat Mass Transf 46:2665–267210.1016/S0017-9310(03)00016-4 ↗
44. Wasan DT, Nikolov AD (2003) Spreading of nanofluids on solids. Nature 423(6936):156–15910.1038/nature01591 ↗
45. Wen DS, Ding YL (2005) Formulation of nanofluids for natural convective heat transfer applications. Int J Heat Fluid Flow 26:855–86410.1016/j.ijheatfluidflow.2005.10.005 ↗
46. Xuan YM, Li Q, Hu J,WF (2003) Aggregation structure and thermal conductivity of nanofluids. AIChE J 49(4):1038–104310.1002/aic.690490420 ↗
47. Yang Y, Zhong ZG, Grulke EA, Anderson WB, Wu G (2005) Heat transfer properties of nanoparticle-in-fluid dispersion (nanofluids) in laminar flow. Int J Heat Mass Transf 48:1107–111610.1016/j.ijheatmasstransfer.2004.09.038 ↗