TiO2 nano powder and water based nanofluids

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TiO2 nano powder and water based nanofluids ( tio2-nano-powder-and-water-based-nanofluids )

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Kavitha T et al Euro. J. Appl. Eng. Sci. Res., 2012, 1 (4):235-240 ______________________________________________________________________________ 0 3.2 SEM Morphology of calcinated titania powder at 400 c CONCLUSION Nanofluids, i.e., well-dispersed metallic nanoparticles at low volume fractions in liquids, enhance the mixture’s thermal conductivity over the base-fluid values. Thus, they are potentially useful for advanced cooling of micro- systems. In summary, Nano- TiO2 powders have been prepared by sol-gel method and found to be 6nm. The future scope in the nanofluids research cycle are to concentrated on heat transfer enhancements and determine its physical mechanisms, taking into consideration such items as the optimum particle size and shape, particle volume concentration, fluid additive, particle coating, and base fluid. TiO2 Acknowledgments We are thankful to principal, professors and lecturers, technical and non-technical staff those who are supported for the proposed research in the Department of Physics and Mechanical Engineering. REFERENCES [1] H. Akoh, Y. Tsukasaki, S. Yatsuya, A. Tasaki, Journal of Crystal Growth 45 (1978) 495–500. [2]Choi SUS. Developments and applications of non-newtonian flows. In: Siginer DD, Wang HP, Eds. American Society of Mechanical Engineering, New York 1995; 231(66): 99. [3]Cheng L, Bandarra FEP, Thome JR. J Nanosci Nanotech 2008; 8: 3315. [4]Keblinst.P, Eastman.J.A and Cahill.D.G, Materials Today, 8 (2005), 6, pp. 36-44. [5] Keblinst.P, Phillpot.S.R, Choi.S.U.S, and Eastman.J.A, International Journal of Heat and Mass Transfer, 45(2002), 4, pp. 855-863. [6]Eastman.J.A,Cho.S.U.S,Li.S,Thompson.L.J,and Lee.S, “Enhanced thermal conductivity through the development of Nanofluids”, Fall meeting of the Materials Research Society,Boston, USA,1997. [7]Masuda.H,Ebata.A, Teramae.K and Hishinuma.N, Netsu Bussei, 7 (1993), pp. 227 – 233. Scholars Research Library water nanofluids with different volume concentrations from 1% to 2% were then prepared by dispersing the synthesized Nano particles in deionised water. 239

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