ESTIMATION OF VISCOSITY VALUES OF DIFFERENT SAMPLES OF OIL, USING A U-TUBE GLASS VISCOMETER

ESTIMATION OF VISCOSITY VALUES OF DIFFERENT SAMPLES OF OIL, USING A U-TUBE GLASS VISCOMETER

CHAPITRE ONE

THE STUDY’S HISTORY

Introduction

The term ‘viscosity’ denotes a material’s quality from a physicist’s perspective; it is the thickness of a fluid. It is the scientific term describing a fluid’s internal flow resistance to deformation. (1999, Szekely). Some liquids flow more easily than others, such as honey, which is quite viscous and flows slowly. Water is very thin and flows swiftly, indicating that one is more viscous than the other. Battle and colleagues (1990).

Viscosity is a concept used to characterize the resistance of low at a specific temperature. It is often seen as flow behavior or pouring resistance. The viscosity of a fluid indicates its internal resistance to flow and can be regarded of as a measure of fluid friction. The viscosity of a fluid is determined via viscometry, which is a branch of rheometry. Rheology, the science of material flow behavior and deformation, includes rheometry once more. Because viscosity is a measure of internal friction or barrier to flow in a liquid, fluids with low viscosity are said to pour slowly (Molasses) (Geiger et al., 1990).

Aims and Objectives of the Study – The purpose of this research project is to investigate the viscosity of several brands of oil samples using a glass U tube viscometer with a capillary tube built into one leg.

– To provide the findings of an inquiry into the impacts of raw vegetable oil sample’s high viscosity and low volatility.

to ascertain the sample’s moisture content

To examine the relationship between many types of oil as specified by the Stoke law and to apply these conclusively in order to compute the viscosity of the oils based on my findings.

The transit time of marbles through liquids / oils is used to determine the viscosity of common liquids.

The Study’s Scope and Limitations

This research will be confined to determining the viscosity of four (4) samples of oil obtained in our area.

Oil from vegetables

Oil from groundnuts

Turkey oil in red

The outcome of this test method is based on the sample’s behavior and is suitable for use with liquids in which the shear stress and shear rates are primarily proportional.

Definition of Terms Viscosity: This is a measure of a liquid’s resistance to deformation under shear stress.