Journals / Politeknik Dergisi / 2021 / Cilt: 24 - Sayı: 2

Preparation of bauxite/deionized water nanofluid and experimental investigation of its thermophysical properties

Boksit/Deiyonize Su Nanoakışkanının Hazırlanması ve Termofiziksel Özelliklerinin Deneysel Olarak İncelenmesi

Pages
355–359
Publication Date
2022-10-18
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

However, the thermal conductivity and the specificheat of bauxite nanofluid increased by 8.47% and 4.4% compared to deionized water, respectively.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, bauxite/deionized water nanofluid was prepared by two-step method and its thermopyhsical properties wereexperimentally investigated.
📊
Key Findings & Data:Bauxite nanoparticles with a size of38 nm (2% by weight) and Sodium Dodecyl Benzene Sulfonate (0.5% by weight) were doped into the deionized water whilepreparing the bauxite nanofluid.
💡
Conclusion & Impact:However, the thermal conductivity and the specificheat of bauxite nanofluid increased by 8.47% and 4.4% compared to deionized water, respectively.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, bauxite/deionized water nanofluid was prepared by two-step method and its thermopyhsical properties wereexperimentally investigated. Bauxite was milled by high-energy spex type ball milling attritor. Bauxite nanoparticles with a size of38 nm (2% by weight) and Sodium Dodecyl Benzene Sulfonate (0.5% by weight) were doped into the deionized water whilepreparing 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 nanofluidhas the lower surface tension and smaller contact angle than that of base fluid. However, the thermal conductivity and the specificheat of bauxite nanofluid increased by 8.47% and 4.4% compared to deionized water, respectively.

Özet

Bu çalışmada, boksit/deiyonize su nanoakışkanı iki aşamalı yöntem kullanılarak hazırlanmış ve termofiziksel özellikleri deneysel olarak incelenmiştir. Boksit minerali yüksek enerjili spex tipi bilyalı öğütücüde öğütülmüştür. Boksit nanoakışkanı hazırlanırken 38 nm boyutundaki boksit nanopartikülleri (kütlece %2) ve Sodyum Dodesil Benzen Sülfonat (kütlece %0,5) deiyonize suya karıştırılmıştır. Nanopartiküllerin kararlı koloidal dağılımını sağlamak için iki saat boyunca ultrasonikasyon uygulanmıştır. Boksit nanoakışkanının termal karakteristiğinin deiyonize suya göre daha iyi olduğu görülmüştür. Boksit nanoakışkanı, temel akışkana göre daha düşük yüzey gerilimine ve daha küçük temas açısına sahiptir. Ayrıca deiyonize suyla karşılaştırıldığında boksit nanoakışkanının termal iletkenliği ve spesifik ısı kapasitesi sırasıyla %8,47 ve % 4,4 artmıştır.

🔖

Cite This Article

SÖZEN, A., AYDIN, D. Y., GÜRÜ, M. (2022). Preparation of bauxite/deionized water nanofluid and experimental investigation of its thermophysical properties. Politeknik Dergisi, Cilt: 24 - Sayı: 2, 355–359. https://ajindex.com/articles/588423

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (13)

  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, 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)