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