open ended full report cewb121
TRANSCRIPT
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UNIVERSITI TENAGA NASIONAL
COLLEGE OF ENGINEERING
DEPARTMENT OF CIVIL ENGINEERING
CEWB121 MECHANICS OF FLUID LABORATORY
OPEN ENDED EXPERIMENT REPORT
EXP. TITLE : HEAD LOSS DUE TO FRICTION AND PIPE FITTING IN
ROUND SMOOTH PIPE
EXP. NO : 5
STUDENT NAME : NUR FAREHA BINTI ABDUL GHAFAR
STUDENT ID : CE096508
SECTION : 01
GROUP : 02
GROUP MEMBERS: 1. AZRUL AFFAN BIN MUHAMAD RASHIDI
CE096502
2. HARIGARAN A/L KANDASAM
CE09650!
". MOHAMMAD OMAR HAMID #AGIEALLA
CE09$089
INSTRUCTOR : PROF. IR. DR. MARLINDA BINTI ABDUL MALEK
Performed Date Due Date Submitted Date10THAUGUST 2015 10THAUGUST 2015
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TABLE OF CONTENT
TITLE PAGE
O%&'()*+' "
T,'- " $
A)*(*3)'4 R'7) 8 10
A33) 11 12
P-('4' 1"15
D3)3 O%'+3)*- 34 R'7) 16 21
D*(*- 22
C-(7*- 2"
C*)*' 2"
R'''(' 2"
A'4*; 2!
2
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OBJECTIVE
T,' -' - ),* ';'*' - ''> -< 3 +373%7' ' - ''> *
377 '''4 )- 3 *()*- ,'34 7- =,*(, ''') ),' 3 (-+')'4 *)-
,'3) ' *) ='*>,) - 7*4.
T,' ,'34 7-' , * *' 4' )- *()*- (3 %' 4')'D
#,'':
F*()*- 3()-
L L'>),
M'3 +'7-(*) /A
> G3+*)
D C-)3) 4*3*37 4'*+3)*- - '3(, -' * 4*''):
g
V
D
Lfhf
2
2
= "
"
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In laminar ow, the frition fator i! onl" a funtion of #e"nold! number while
for turbulent ow it i! a funtion of #e"nold! $# e% number and the relati&e
rou'hne!! of the (i(e)
AD
R'= !
=,'' : 4'*) : 3+'3>' +'7-(*) D: *' **4' 4*3
(-'73)*-
L3
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hL = KV
2
2g 10
=,'' ,L * ),' '-
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Minor o!!"! #$ !%&&"n )on$r#)$ion
#,' 3 7*4 7-= -< 3 73>' *' *)- 3 , 3 44' (-)3()*- ),'
7*4 )'3' &) 4-=)'3< - ),' ''3)' 3 ''> 7-.
I 3 44' (-)3()*- 7-= (-)3() -< -*) 1 )- -*) 1? - 3 +'3 (-)3()*-. I)
* -*%7' )- 37*>*%7' - '33)*- -(( *
(-)3()*> 7-= %) ),3) 3*
I ),' +'3 (-)3()3 3'3 * A1A( ),' ),'
),'
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Minor Lo!!"! #$ "*o+ or *"n& ,i,"
L-' * *))*> (, 3 '7%-= +37+' ')( ,3+' %'' -4 )- %' --)*-37 )- ),' +'7-(*)
,'34 - ),' 7*4 7-=*>. T,' ''> 7- * ';''4 * ),' >''37 -7' - %'4*> )- 34*
- %'4*> R/4 - ),' (+' 3 ),' %'4*> -((
E-,"ri("n$# &"$"r(in#$ion o $o$# /"#& o!!
In the e9(eriment the (re!!ure head! before and after a uid under'oin'!udden han'e in (i(e diameter or ow diretion, h1 and h2, are mea!uredb" u!in' Pie;ometer tube!) The total head lo!! $ma?or and minor lo!!e!%an be determined e9(erimentall" b" a((l"in' the
P1/> @ 72 / 2 > @ Z1 P2/>@ 2
2 / 2 > @ Z2 @ ,L 16
,7 @ 72 / 2 > @ Z1 ,2 @ 2
2 / 2 > @ Z2 @ ,L 1$
34 *(' Z1 Z2 ),' g
VVhhh
L 2
2
2
2
1
21
+= 18ANTICIPATED RESULT
$
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F- ),* ';'*
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G3)' +37+'
*low #ate,@ $l3min%
TheoretialHead o!!
10 0)05
15 0)01
20 0)11
25 0)1
0 0)2
B377 +37+'
*low #ate,
@ $l3min%
Theoretial
Head o!!
10 0)05
15 0)01
20 0)11
25 0)1
0 0)2
HEAD LOSS FOR ELBO# P*' 4*3
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HEAD LOSS DUE TO SUDDEN ENLARGEMENT
*low #ate,@ $l3min%
TheoretialHead o!!
10 C0)002
15 C0)00
20 C0)00B
25 C0)005
0 C0)00
HEAD LOSS DUE TO SUDDEN CONTRACTION
*low #ate,@ $l3min%
TheoretialHead o!!
10 0)000122
15 0)0002
20 0)000B7-
25 0)0005
0 0)0010B
10
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APPARATUS
HF1"5 P**> L- T') S')
S)-=3)(,
H437*( B'(,
D'(*)*- - A33)
T'' PC P*' J S)3*>,) 7-=
T'' PC P*' J L*' 90 %'4
PC P*' N- 1: D*3 *) - 3 )4 - *()*- 7-' * *' *' *))*> 34
+37+' 34 )- 4')'' - * 4'+*(' 3' 33>'4. F*()*- 7- *
' * 4')'
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T,' '*:
F*()*- C-), - P*' : 1250 34* %'4
V#0"!
G3)' +37+'
G7-%' +37+'
B377 +37+'
C,'( +37+'
O$/"r i$$in'!
S44' ';3*- 34 (-)3()*-
T'' '()*-
M"#!%rin' D"0i)"!
F7-= 3)'
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PROCEDURE To T"!$ $/" H"#& Lo!! &%" $o Pi," Fri)$ion
1. T,' 7-= (-)-7 +37+' * 77 -''4 34 *-73)*> +37+' * *7').
2. T,' >3)' +37+' 34 >7-%' +37+' 3' (7-'4.
". T,' *)37 '' *4*(3)- * *')'4 *)- ),' )3*> +37+'
- *' N-. 1.
$. T,' - ),' 4*'')*37 '' *4*(3)- * '(-4'4.
10. T,' 43* * (7-'4 34 3 )-=3)(, * '4 )- -)7') (-)-7 +37+' )- >') 4*'') 4*'')*37 '' '34*>.
1". A>3* ),' 4*'')*37 '' '34*> * )3' 34 ),' )* ),' -(' * 3* %%%7' '') * ),' 7-=*> *' ),' 3*
=*77 ,' '4 - =3)'
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PROCEDURE To T"!$ $/" H"#& Lo!! #$ $/" "*o+
2. T,' (-)-7 +37+' ) (7-(=*' * 7-=7 (-)-77'4 )*7 '' H1 - *' 5 )-
),' -)7') 7-=*> '' H2 - *' 6 '7%-=. T,' )'< * -= 7-=*>),->, ),' '7%-= *'.
2. B-), =3)' '' H2 =,*7' 3) ),' 3, ),' ,*>,' '4 - =3)' ),' -(' * 3* %%%7' '') * ),' 7-=*> *' ),' 3*
=*77 ,' '4 - =3)'
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PROCEDURE To T"!$ $/" S%&&"n Con$r#)$ion
1. T,' (-)-7 +37+' ) (7-(=*' * 7-=7 (-)-77'4 )*7 '' H1 - *' $ )-
),' -)7') 7-=*> '' H2 - *' 8 44' (-)3()*-. T,' )'< * -=
7-=*> ),->, ),' 44' (-)3()*- *'.
2. B-), =3)' '' H2 =,*7' 3) ),' 3, ),' ,*>,' '4 - =3)'
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Calculations ( Take Table 1 for example of calculation)
T/" Fo+ R#$"3 4 i! )#)%#$"& *5 $/" oo+in' or(%#6
4 7
5.0 ;
T/" Ar"#3 A i! )#)%#$"& *5 $/" oo+in' or(%#6
Ar"# o ,i,"
1.26$ ;
T/" V"o)i$53 V i! o*$#in"& *56
V"o)i$53 0 7
0.986
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T/" T/"or"$i)# H"#& Lo!! i! )#)%#$"& *5 $/" oo+in' or(%#6
T/"or"$i)# /"#& o!!3 7f 0.025"
0.062
T/" P"r)"n$ Error i! )#)%#$"& *5 $/" oo+in' or(%#6
P"r)"n$#'" "rror3 8 7 ; 100
7 ; 100
"".!8
*(The other calculations are done using the same steps.)
1$
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DISCUSSION
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