Models of viscosity characteristics η=η(b) of ferro-oil with different concentration of magnetic particles in the presence of external magnetic field

• Autorzy: Frycz M. , Czaban A.

Identyfikatory

DOI

10.5604/12314005.1130456

• Języki publikacji: EN

Abstrakty

EN

The purpose of this article is to determine, identify and describe the viscosity characteristics of the ferro-oil with different concentrations of magnetic particles in the presence of an external magnetic field interaction. These characteristics are defined in the context of magnetic induction changes. These rheological tests were performed on a Physica MCR 301 rheometer. It was used a measuring system ‘plate to plate’ type which was armed with magneto-rheological research system MRD 180/1T. The tests were performed for the selected temperature of the medium i.e. 90°C, the shear rate θ changes were carried from 0 to 1000 1/s. Changes of the magnetic field intensity value were ranged from 0 to 500 mT. The selected concentrations of magnetic particles in a ferro-oil were 1%, 2%, 4%, 6% and 8% and the tested ferro-oil was product of FerroTec of Unterensingen (Germany), which is a mixture of colloidal mineral motor oil Penzzoil’s LongLife Gold's SAE 15W-40 with Fe3O4 magnetic particles and the surfactant. Analyses of the results, identify and matching characteristic were calculated using STATISTICA software. It has been proposed three categories of functions mapping the waveforms of the results obtained experimentally: the exponential function, logarithmic with basis of the normal and the polynomial function.

Słowa kluczowe

EN

ferro-oil; dynamic viscosity; magnetic particles concentration; external magnetic field

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2014
• Tom: Vol. 21, No. 4
• Strony: 119--126
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Frycz M.

• Gdynia Maritime University, Faculty of Marine Engineering Morska Street 83-87, 81-225 Gdynia, Poland tel.: [phone], fax: [phone]

autor

Czaban A.

• Gdynia Maritime University, Faculty of Marine Engineering Morska Street 83-87, 81-225 Gdynia, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] Frycz, M., Horak, W., Effect of the magnetic particles concentration on the ferro-oil’s dynamic viscosity inpresence of an external magnetic field in the aspect of shear rate’s variations, Journal of KONES Powertrain and Transport, Vol. 20, No. 3, pp. 139-144.
• [2] Frycz, M., Effects of concentration of magnetic particles on ferrooil’s dynamic viscosity as a function of temperature and shear rate, Journal of KONES Powertrain and Transport, Vol. 19, No. 2, pp. 159-165.
• [3] Frycz, M., Anioł, P., Impact of magnetic particles concentration in ferro-oil on its magnetic susceptibility coefficient χ, Journal of KONES Powertrain and Transport, 2014.
• [4] Hemalatha, R., Sivapraba, N., Effect on magnetic field dependent on ferroconvection in a sparsely distributed anisotropic porous medium in the presence horizontal thermal gradient, Indian Journal of Pure and Applied Physics, Vol. 20, pp. 907-914, 2012.
• [5] Jianmei, W., Jianfeng, K., Yanjuan, Z., Xunjie H., Viscosity monitoring and control on oil film bearing lubrication with ferrofluids, Tribology International 75, pp. 61-68, 2014.
• [6] Miszczak, A., Analiza hydrodynamicznego smarowania ferrocieczą poprzecznych łożysk ślizgowych, Akademia Morska w Gdyni, Gdynia 2006.
• [7] Odenbach, S., Magnetoviscous Effects in Ferrofluids, Springer, Germany 2013.
• [8] Zubarev, A. Yu, Odenbach, S., Fleischer, J., Rheological properties of dense ferrofluids,Journal of Magnetism and Magnetic Materials, 252, pp. 241-243, 2002.