Kinematic Viscosity of Four-stroke Engine Oils

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F12%3A00190051" target="_blank" >RIV/62156489:43210/12:00190051 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Kinematic Viscosity of Four-stroke Engine Oils

Popis výsledku v původním jazyce

Six different commercially distributed four-stroke motorcycle engine oils of 10W--40 viscosity class were evaluated. Two of the oils were of semi--synthetic type, four of synthetic type. All oils were assumed to be Newtonian fluids, thus flow curves werenot determined. Oils were cooled to below zero temperatures and under controlled temperature regulation kinematic viscosity (mm2.s-1) was measured in the range of --5°C and +115°C. Anton Paar digital viscometer with concentric cylinders geometry was used. In accordance with expected behavior, kinematic viscosity of all oils was decreasing with increasing temperature. Viscosity was found to be independent of oil density. Temperature dependence was modeled using several mathematical models: Vogel equation, Arrhenius equation, polynomial, and Gaussian equation. The best match between experimental and computed data was obtained for Gaussian equation (R2 =0.9993). Knowledge of viscosity behavior of an engine oil as a function of its tempera

Název v anglickém jazyce

Kinematic Viscosity of Four-stroke Engine Oils

Popis výsledku anglicky

Six different commercially distributed four-stroke motorcycle engine oils of 10W--40 viscosity class were evaluated. Two of the oils were of semi--synthetic type, four of synthetic type. All oils were assumed to be Newtonian fluids, thus flow curves werenot determined. Oils were cooled to below zero temperatures and under controlled temperature regulation kinematic viscosity (mm2.s-1) was measured in the range of --5°C and +115°C. Anton Paar digital viscometer with concentric cylinders geometry was used. In accordance with expected behavior, kinematic viscosity of all oils was decreasing with increasing temperature. Viscosity was found to be independent of oil density. Temperature dependence was modeled using several mathematical models: Vogel equation, Arrhenius equation, polynomial, and Gaussian equation. The best match between experimental and computed data was obtained for Gaussian equation (R2 =0.9993). Knowledge of viscosity behavior of an engine oil as a function of its tempera

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of young scientists = Jaunuju Mokslininku Darbai

ISSN

1648-8776

e-ISSN

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Svazek periodika

36

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

LT - Litevská republika

Počet stran výsledku

6

Strana od-do

134-139

Kód UT WoS článku

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EID výsledku v databázi Scopus

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