Preparation of Bauxite/Deionized Water Nanofluid and Experimental Investigation of Its Thermophysical Properties

Yıl 2021, Cilt: 24 Sayı: 2, 355 - 359, 01.06.2021

Duygu Y. Aydın Metin Gürü Adnan Sözen

https://doi.org/10.2339/politeknik.649417

Cited By: 2

Öz

In this study, bauxite/deionized water nanofluid was prepared by two-step method and its thermopyhsical properties were experimentally investigated. Bauxite was milled by high-energy spex type ball milling attritor. Bauxite nanoparticles with a size of 38 nm (2% by weight) and Sodium Dodecyl Benzene Sulfonate (0.5% by weight) were doped into the deionized water while preparing the bauxite nanofluid. Ultrasonication was applied for two hours to obtain stable colloidal dispersions of nanoparticles. It has been seen that the thermal characteristic of bauxite nanofluid is better than that of deionized water. The bauxite nanofluid has the lower surface tension and smaller contact angle than that of base fluid. However, the thermal conductivity and the specific heat of bauxite nanofluid increased by 8.47% and 4.4% compared to deionized water, respectively. 

Anahtar Kelimeler

Bauxite, nanofluid, thermal conductivity, viscosity

Destekleyen Kurum

GAZİ ÜNİVERSİTESİ

Proje Numarası

06/2018-22, 2018.

Preparation of Bauxite/Deionized Water Nanofluid and Experimental Investigation of Its Thermophysical Properties

Öz

In this study, bauxite/deionized water nanofluid was
prepared by two-step method and its thermopyhsical properties were experimentally
investigated. Bauxite was milled by high-energy spex-type ball milling attritor.
Bauxite nanoparticles with a size of 38 nm (2% by weight) and Sodium Dodecyl
Benzene Sulfonate (0.5% by weight) were doped into the deionized water while
preparing the bauxite nanofluid. Ultrasonication was applied for three hours to
obtain stable colloidal
dispersions of nanoparticles. It has been seen that the thermal characteristics
of bauxite nanofluid was better than that of deionized water. The
bauxite nanofluid has the lower surface tension and smaller contact angle than
that of base fluid. However, the thermal
conductivity and the specific heat of bauxite nanofluid increased by 8.47% and
4.4% compared to deionized water, respectively.

Anahtar Kelimeler

Bauxite, nanofluid, thermal conductivity, viscosity

Proje Numarası

06/2018-22, 2018.

Kaynakça

• [1] Ganvir R. B., Walke P. V. and Kriplani V. M., ''Heat transfer characteristics in nanofluid-A review'', Renewable & Sustainable Energy Reviews, 75: 451-460, (2017).
• [2] Suganthi K. S. and Rajan K.S., ''Metal oxide nanofluids: Review of formulation, thermo-physical properties, mechanisms, and heat transfer performance'', Renewable & Sustainable Energy Reviews. 76: 226-255, (2017).
• [3] Murshed S.M.S., Leong K.C and Yang C., ''Thermophysical and electrokinetic properties of nanofluids – A critical review'', Applied Thermal Engineering, 28: 2109-2125, (2008).
• [4] Alawi O. A., Sidik N. A. C., Xian H. W., Kean T. H and Kazi S. N., ''Thermal conductivity and viscosity models of metallic oxides nanofluids'', International Journal of Heat Mass Transfer, 116: 1314-1325, (2018).
• [5] Murshed S.M.S., Leong K.C and Yang C., ''Enhanced thermal conductivity of TiO2—water based nanofluids'', International Journal of Thermal Sciences, 44: 367-373, (2005).
• [6] Hong T. K. and Yanga H. S., ''Study of the enhanced thermal conductivity of Fe nanofluids'',Journal of Applied Physics, 97: 064311, (2005).
• [7] Ahmadi, M. H., Mirlohi A., Nazari A. M., Ghasempour R, ''A review of thermal conductivity of various nanofluids '', Journal of Molecular Liquids, 265: 181-188, (2018).
• [8] Agarwal R., Verma K., Agrawal N. K. and Singh R., ''Sensitivity of thermal conductivity for Al2O3 Nanofluids'', Experimental Thermal and Fluid Science, 80: 19-26, (2017).
• [9] Chopkar M., Kumar S., Bhandari D. R. , Das P. K. and Manna I., ''Development and characterization of Al2Cu and Ag2Al nanoparticle dispersed water and ethylene glycol based nanofluid'', Materials Science and Engineering, 139: 141–148, (2007).
• [10] Gupta M., Singh V., Kumar R. and Said Z., A review on thermophysical properties of nanofluids and heat transfer applications, ''Renewable & Sustainable Energy Reviews'', 74: 638-670, (2017).
• [11] Tiznobaik H. and Shin D. ''Enhanced specific heat capacity of high-temperature molten salt-based nanofluids''. International Journal of Heat Mass Transfer, 57: 542–548, (2013).
• [12] Karakaya U., Gürü M., Sözen A., Aydin D. Y. and Bilici İ., ''Experimental investigation of thermophysical properties of nano mineralogical fluids '', Journal of Polytechnic-Politeknik Dergisi, 22: 619-626, (2019).
• [13] Turgut A., Tavman I., Chirtoc M., Schuchmann H.P., Sauter C. and Tavman S., ''Thermal conductivity and viscosity measurements of water-based TiO2 nanofluid'', International Journal of Thermophysics, 30(4): 1213-1226, (2009).
• [14] Saeedinia M., Akhavan-Behabadi M.A. and Razi P., ''Thermal and rheological characteristics of CuO–Base oil nanofluid flow inside a circular tube'', International Communications in Heat and Mass Transfer, 39(1): 152-159, (2012).
• [15] Chandrasekar M., Suresh S. and Bose A.C., ''Experimental investigations and theoretical determination of thermal conductivity and viscosity of Al2O3/water nanofluid'', Experimental Thermal and Fluid Science, 34 (2): 210-216 (2010).
• [16] Khalil Khanafer, Kambiz Vafai, ''A critical synthesis of thermophysical characteristics of nanofluids'', International Journal of Heat and Mass Transfer, 54: 4410-4428, (2011).
• [17] Sözen A, Gürü M, Menlik T, Karakaya U and Çiftçi E. ''Experimental comparison of triton x-100 and sodium dodecyl benzene sulfonate (SDBS) surfactants on thermal performance of TiO2-deionized water nanofluid in a thermosiphon'', Experimental Heat Transfer, 31: 450-469, (2018).
• [18] Ramires M. L. V., Castro C. A. N., Nagasaka Y., Nagashima A., Assael M. J. and Wakeham W. A., '' Standard reference data for the thermal conductivity of water'', Journal of Physical and Chemical Reference Data, 24:1377, (1995).
• [19] Duangthongsuk W. and Wongwises S., ''Measurement of temperature-dependent thermal conductivity and viscosity of TiO2-water nanofluids'', Experimental Thermal and Fluid Science, 33: 706-714, (2009).