Experimental investigation to study the viscosity and dispersion of conductive and non-conductive nanopowders’ blended dielectrics

• Autorzy: Santarao K. , Prasad C. L. V. R. S. V. , Swami Naidu G.

Identyfikatory

DOI

10.12913/22998624/68463

• Języki publikacji: EN

Abstrakty

EN

Nano fluids are nanotechnology-based colloidal dispersions engineered by stably suspending nanoparticles. The characteristics of nano fluids such as thermal and electrical conductivities, viscosity, specific heat, dispersion etc. were studied and analyzed by earlier researches at different particle concentrations with different nano fluids. It was established that nano fluids have a significant impact on the process due the improvised characteristics. Nano fluid viscosity and dispersion deserve the same attention as thermal conductivity in cases of nano dielectric fluids that are used in EDM as they influence the MRR. In this work, The viscosity and dispersion of the conductive and nonconductive Nano powders blended dielectrics are investigated as a function of volume fraction so as to evaluate the behavior of these nano fluids at different particle volume concentrations. Kerosene and deionized water based nano fluids blended with conductive (SiC) and non-conductive (boric acid) Nano particles are selected for the current study. It is observed that as the percentage volume fraction of nano particles (both SiC and boric acid) increased, the viscosity was found increasing when blended with DI water. But the viscosity behavior with kerosene blended with SiC and boric acid is not same. The existing experimental results about the nano fluids viscosity shows clearly that viscosity have a specific trend in variation with an increase of volume concentration. Boric acid blended with DIW and kerosene shows similar trend in dispersion. However, in case of SiC blended with DIW and kerosene showed some contradictory results giving scope for further investigation. The outcome of these experimental investigations will augment the works that are going on in studying its influence on MRR in EDM processes using nano blended dielectric medium.

Słowa kluczowe

EN

nanofluid; viscosity; dispersion; sonication; silicon carbide nano powder; boric acid nano powder

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2017
• Tom: Vol. 11, no 1
• Strony: 154--160
• Opis fizyczny: Bibliogr. 10 poz., fig., tab.

Twórcy

autor

Santarao K.

• Department of Mechanical Engineering, GMR Institute of Technology, Rajam, India

autor

Prasad C. L. V. R. S. V.

• Department of Mechanical Engineering, GMR Institute of Technology, Rajam, India

autor

Swami Naidu G.

• Department of Metallurgy Engineering, JNTUK, Vizianagaram Campus, India

Bibliografia

• 1. Agarwal D.K., Aravind V., and Sunil Kumar S. Synthesis and characterization of kerosene–alumina nanofluids. Applied Thermal Engineering, 60(1), 2013, 275–284.
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• 4. Lee S.W., Sung D.P., Sarah K., In Cheol Bang, and Ji Hyun Kim. Investigation of viscosity and thermal conductivity of SiC nanofluids for heat transfer applications. International Journal of Heat and Mass Transfer, 54(1), 2011, 433–438.
• 5. Mahbubul I.M., Saidur R., and Amalina M. A. Latest Developments on the Viscosity of Nanofluids. International Journal of Heat and Mass Transfer, 55(4), 2012, 874–885.
• 6. Minea A.A., and Razvan S.L. Investigations on Electrical Conductivity of Stabilized Water Based Al2O3 Nanofluids. Microfluidics and Nanofluidics, 13(6), 2012, 977–985.
• 7. Mishra P. C., Sayantan M., Santosh K. N., and Arabind Panda. A brief review on viscosity of nanofluids. International Nano Letters, 4(4), 2014, 109–120.
• 8. Sarojini K.G.K., Siva V.M., Pawan K.S., Pradeep T., and Sarit K. Das. Electrical conductivity of ceramic and metallic nanofluids. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 417, 2013, 39–46.
• 9. Palabiyik I., Zenfira M., Sanjeeva W., and Yulong Ding. Dispersion stability and thermal conductivity of propylene glycol-based nanofluids. Journal of Nanoparticle Research, 13(10), 2011, 5049–5055.
• 10. Yu W., Huaqing X., Lifei Chen, and Yang Li. Investigation of Thermal Conductivity and Viscosity of Ethylene Glycol Based ZnO Nanofluid. Thermochimica Acta, 491(1), 2009, 92–96.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)