ME268 Experiment No4

7/30/2019 ME268 Experiment No4

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ME268

GROUP: A23

FUNDAMENTALS OF MECHANICAL ENGINEERING SESSIONAL

EXPERIMENT NO. : 4

Name of the Experiment:


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4(A) : MEASUREMENT OF VISCOSITY OF LUBRICATING OIL BY SAYBOLT

VISCOSIMETER.

4(B) : STUDY AND CALIBRATION OF PRESSURE GAUGE BY DEAD WEIGHT TESTER.

Date of Performance: 21-05-2013 Name: Navid Anjum

Aadit

Date of Submission: 28-05-2013Student No. :1006057

Partners ID:


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EXP

ERI

MEN

T N

O.

4(A)

ME

ASU

REM

EN

T O

F V

SCO

SIT

Y O

F L

UBR

ICAT

ING

OIL

BY

SAYBOL

T V

SCO

SIMETER

OBJECTIVE

1. To compute the viscosity of the supplied oil.

2. To plot the Saybolt Universal Viscosity on a semilogarithmic coordinates ag

ainst temperature.

3. Using ASTM viscosity chart identify the SAE number of the oil.

EXPERIMENTAL SETUP


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( Label the following Schematic set up)

FIG:SAYBOLT VISCOSIMETER

Your report will be evaluated on the basis of provided information and clarity of the ex

planation.

http://teacher.buet.ac.bd/mislam/


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CALCULATIONThe kinematic viscosity can be estimated by the formula:

DATA SHEET

where t is the time in seconds.


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No. of Observation Temparature (o F)Time in Seconds

Kinematic viscosity in

1.

2.

3.

SAMPLE CALCULATION

GRAPH

? Plot Saybolt Universal Viscosity on a semilogarithmic co

ordinates against temperature (use

Microsoft Excel/ MATLAB )

? Attach ASTM viscosity chart identifying the SAE number of the oil.



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RES

ULT

The

give

n oil

is of

visc

osit

y ind

ex,

SAE

.

DIS

CUS

SIO

N1. i. W

hat i

s viscosit

y? Ef

fect

of te

mpa

ratu

e on

visc

osity

?

ii. What is viscosity index? Write down the effect of tempaerture on

viscosity index?


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2. What you have learned from this experiment?



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3.

What were the sources of error? And how to eliminate?


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4. What are the pragmatic applications of the experiment?



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5. If you have any genius ideas about the development of the experimental procedure, then mention it.

( attach any additional sheet if necessary)



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EXP

ERI

MEN

T N

O.

4(B

)

STU

DY

AND C

ALI

BRA

TIO

N O

F P

RES

SUR

E

GA

UG

E B

YD

EA

D

WEIGHT TESTER

OBJECTIVE

To study and calibration of a Bourdon Tube pressure gauge using Dea

d Weight Tester

EXPERIMENTAL SETUP

( Label the following Schematic set up)


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FIG:Schematic of Dead Weight Tester

Your report will be evaluated on the basis of provided information and clarity of the exp



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DATA SHEET


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SAMPLE CALCULATION

http://teacher.buet.ac.bd/mis

lam/


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GR

APH

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

?

??

?

?

?

?

?

?

?

?

Actual Pressure vs. Observed Pressure

?

Percentage of Error vs. Observed Pressure

RESULTS

DISCUSSION1. i. Briefly introduce the working principle of the dead weight tester setup?

ii. How Bourdon Tube pressure gauge works? Briefly explain.


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2.

What you have learned from this experiment?


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3. What were the sources of error? And how to eliminate?



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4.

What

ar

e t

he

pra

gm

ati

c a

ppl

cat

ons o

f th

e e

xpe

rim

ent

?


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5. If you have any genius ideas about the development of the experimental procedure

, then mention it.

( attach any additional sheet if necessary)


ME268 Experiment No4

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