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Studies from Semnan University Reveal New Findings on Thermal and Fluid Science (An experimental investigation and new correlation of viscosity of...

July 22, 2014



Studies from Semnan University Reveal New Findings on Thermal and Fluid Science (An experimental investigation and new correlation of viscosity of ZnO-EG nanofluid at various temperatures and different solid volume fractions)

By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Thermal and Fluid Science have been published. According to news reporting from Semnan, Iran, by VerticalNews journalists, research stated, "This paper presents an experimental investigation on effects of temperature and particle volume concentration on the dynamic viscosity of ZnO-EG nanofluid. The viscosity of Zinc oxide nanoparticles with mean diameter of 18 nm dispersed in ethylene glycol was determined by using a 'Spindle-type' Brook-field commercial viscometer."

The news correspondents obtained a quote from the research from Semnan University, "The experiments were conducted for the temperatures ranging from room condition up to 50 C, while the nano-fluids and the particle volume fraction ranging from 0.25% to 5%. It has been found that, in general, the nanofluid dynamic viscosity increases considerably with particle volume fraction but does not significantly change (decrease) with increasing temperature. Two experimental correlations were developed based on the data, which relate the viscosity with particle volume fraction and the nanofluid temperature. The proposed models showed reasonably excellent agreement with the experimental results."

According to the news reporters, the research concluded: "The Data has also shown that the Einstein's formula and some other ones originated from the classical linear fluid theory seem to be limited to nanofluids of only low particle fractions."

For more information on this research see: An experimental investigation and new correlation of viscosity of ZnO-EG nanofluid at various temperatures and different solid volume fractions. Experimental Thermal and Fluid Science, 2014;55():1-5. Experimental Thermal and Fluid Science can be contacted at: Elsevier Science Inc, 360 Park Ave South, New York, NY 10010-1710, USA. (Elsevier - www.elsevier.com; Experimental Thermal and Fluid Science - www.elsevier.com/wps/product/cws_home/505737)

Our news journalists report that additional information may be obtained by contacting M.H. Esfe, Semnan Univ, Fac Mech Engn, Semnan, Iran.

Keywords for this news article include: Iran, Asia, Semnan, Thermal and Fluid Science

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Technology


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