About: Rheological profiles of blends of the new and used motor oils

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The objective of this paper is to fi nd changes of a rheological profi le of the new engine oil if the used engine oil will be add. And also fi nd changes of a rheological profi le of the used engine oil if the new engine oil will be add. For these experiments has been created the blends of the new and the used engine oil. The temperature dependence of the density [kg.m-3] has been measured in the range of -10 °C and +60 °C. The instrument Densito 30PX with the scale for measuring engine oils has been used. The dynamic viscosity [mPa.s] has been measured in the range of -10 °C and +100 °C. The Anton Paar digital viscometer with the concentric cylinders geometry has been used. In the accordance with the expected behaviour, the density and the kinematic viscosity of all oils was decreasing with the increasing temperature. To the physical properties has been the mathematical models created. For the temperature dependence of the density has been used the linearly mathematical model and the exponentially mathematical model. For the temperature dependence of the dynamic viscosity has been used the polynomial 6th degree. The knowledge of density and viscosity behaviour of an engine oil as a function of its temperature is of great importance, especially when considering running effi ciency and performance of combustion engines. Proposed models can be used for description and prediction of rheological behaviour of engine oils. The objective of this paper is to fi nd changes of a rheological profi le of the new engine oil if the used engine oil will be add. And also fi nd changes of a rheological profi le of the used engine oil if the new engine oil will be add. For these experiments has been created the blends of the new and the used engine oil. The temperature dependence of the density [kg.m-3] has been measured in the range of -10 °C and +60 °C. The instrument Densito 30PX with the scale for measuring engine oils has been used. The dynamic viscosity [mPa.s] has been measured in the range of -10 °C and +100 °C. The Anton Paar digital viscometer with the concentric cylinders geometry has been used. In the accordance with the expected behaviour, the density and the kinematic viscosity of all oils was decreasing with the increasing temperature. To the physical properties has been the mathematical models created. For the temperature dependence of the density has been used the linearly mathematical model and the exponentially mathematical model. For the temperature dependence of the dynamic viscosity has been used the polynomial 6th degree. The knowledge of density and viscosity behaviour of an engine oil as a function of its temperature is of great importance, especially when considering running effi ciency and performance of combustion engines. Proposed models can be used for description and prediction of rheological behaviour of engine oils. (en)
Title	Rheological profiles of blends of the new and used motor oils Rheological profiles of blends of the new and used motor oils (en)
skos:prefLabel	Rheological profiles of blends of the new and used motor oils Rheological profiles of blends of the new and used motor oils (en)
skos:notation	RIV/62156489:43210/13:00199270!RIV14-MSM-43210___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Čupera, Jiří Polcar, Adam Kumbár, Vojtěch
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Mendelova univerzita v Brně / Agronomická fakulta
http://linked.open...dnocenehoVysledku	102900
http://linked.open...ai/riv/idVysledku	RIV/62156489:43210/13:00199270
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	temperature; density; engine oil; blend; viscosity; modeling (en)
http://linked.open.../riv/klicoveSlovo	modeling temperature viscosity blend density engine oil
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[8DBE46D5F198]
http://linked.open...i/riv/nazevZdroje	Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
http://linked.open...in/vavai/riv/obor	JT
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	61
http://linked.open...iv/tvurceVysledku	Čupera, Jiří Kumbár, Vojtěch Polcar, Adam
issn	1211-8516
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.11118/actaun201361010115
http://localhost/t...ganizacniJednotka	43210

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