Open Ended Full Report CEWB121

7/26/2019 Open Ended Full Report CEWB121

1/18

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

1


2/18

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


3/18

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

= "

"


4/18

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


5/18

hL = KV

2

2g 10

=,'' ,L * ),' '-


6/18

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( ),' ),'

),'


7/18

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

$


8/18

F- ),* ';'*


9/18

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


10/18

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


11/18

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')'


12/18

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)'


13/18

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)'


14/18

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)'


15/18

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)'


16/18

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


17/18

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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Open Ended Full Report CEWB121