Effect of freezing temperature on the flow behaviour of the engine oil

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of freezing temperature on the flow behaviour of the engine oil

Popis výsledku v původním jazyce

The goal of this study is effect of freezing temperature on the flow behaviour of engine oils. This knowledge is very important to designed specific part of engine. In this paper is evaluated temperature dependence kinematic viscosity of engine oils in the temperature range --15 °C to +15 °C. Five different commercially distributed automobile engine oils with viscosity class 0W--40, 5W--40, 10W--40, 15W--40, and 20W--40 have been evaluated. Considerable temperature dependence kinematic viscosity was found and demonstrated in case of all samples, which is in accordance with theoretical assumptions and literature data. Mathematical models have been developed and tested. Temperature dependence dynamic viscosity has been modeled using exponential function.The proposed models can be used for prediction of flow behaviour of liquid lubricants.

Název v anglickém jazyce

Effect of freezing temperature on the flow behaviour of the engine oil

Popis výsledku anglicky

The goal of this study is effect of freezing temperature on the flow behaviour of engine oils. This knowledge is very important to designed specific part of engine. In this paper is evaluated temperature dependence kinematic viscosity of engine oils in the temperature range --15 °C to +15 °C. Five different commercially distributed automobile engine oils with viscosity class 0W--40, 5W--40, 10W--40, 15W--40, and 20W--40 have been evaluated. Considerable temperature dependence kinematic viscosity was found and demonstrated in case of all samples, which is in accordance with theoretical assumptions and literature data. Mathematical models have been developed and tested. Temperature dependence dynamic viscosity has been modeled using exponential function.The proposed models can be used for prediction of flow behaviour of liquid lubricants.

Druh

C - Kapitola v odborné knize

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

2014

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Deterioration, Dependability, Diagnostics

ISBN

978-80-7231-969-5

Počet stran výsledku

6

Strana od-do

141-146

Počet stran knihy

291

Název nakladatele

University of Defence

Místo vydání

Brno

Kód UT WoS kapitoly

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