Lapres Reynold Number

7/24/2019 Lapres Reynold Number

1/23

BILANGAN REYNOLD

DAFTAR ISI

COVER

LEMBAR PENGESAHAN ........................................................................................ i

KATA PENGANTAR ............................................................................................... ii

INTI SARI ................................................................................................................. iii

DAFTAR ISI...................................................................................................................

1

BAB I PENDAHULUAN

I.1 Latar Belakan...........................................................................................................................

!

I.! T"#"an Per$%&aan...........................................................................................................................

!

I.' Man(aat Per$%&aan

...........................................................................................................................!

BAB II TIN)AUAN PUSTAKA

II.1 Da*ar Te%ri...........................................................................................................................

'

BAB III PERCOBAAN

III.1 Ba+an ,an Di-erl"kan...........................................................................................................................

III.! Alat ,an Di"nakan...........................................................................................................................

III.' Ga/&ar Alat...........................................................................................................................

III.0 Pr%*e"r Per$%&aan...........................................................................................................................

2

PRAKTIKUM OPERASI TEKNIK KIMIA II Page 1


2/23

BILANGAN REYNOLD

BAB IV HASIL DAN PEMBAHASAN

IV.1 Ha*il Pena/atan...........................................................................................................................

13

IV.! Ha*il Per+it"nan...........................................................................................................................

11

IV.' Gra(ik an Pe/&a+a*an...........................................................................................................................

1!

BAB V KESIMPULAN DAN SARAN

V.1 Ke*i/-"lan...........................................................................................................................

14

V.! Saran...........................................................................................................................

14

DAFTAR PUSTAKA.....................................................................................................

15

APPENDI6....................................................................................................................

1

BAB I

PENDAHULUAN

I.1 Latar Belakang

Pr%*e*7-r%*e* in"*tri *erin kali /e/erl"kan -enaliran (l"ia /elal"i

-i-a8 k%n"it 9*al"ran: an -eralatan -r%*e*8 (l"ia ;an /enalir ata" ina/ika

(l"ia ter*e&"t &erkaitan enan %-era*i7%-era*i -er-ina+an /a**a8 -er-ina+an

-ana*8 an tanki &er-ena"k.

Fl"ia a-at /enalir ala/ *"at" -i-a ata" *al"ran /en"r"t "a $ara

;an &erlainan. Paa la#" aliran rena+8 -en"r"nan tekanan i ala/ (l"ia it"

&erta/&a+ *e$ara lan*"n /en"r"t ke$e-atan (l"ia8 -aa la#" tini8



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BILANGAN REYNOLD

-erta/&a+ann;a le&i+ $e-at lai. Per&eaan antara ke"a #eni* aliran -erta/a kali

it"n#"kkan ala/ *"at" -er$%&aan kla*ik ari OSBORNE RE,NOLD -aa

ta+"n 1'. P%la aliran &er"-a ari*7ari* l"r"* an *e#a#ar /er"-akan aliran

la/inar *eankan a-a&ila &er&ent"k aliran *ilan an -"*aran /er"-akan aliran

t"r&"len.

1.2. Tujuan Praktikum

T"#"an ari -er$%&aan ini aala+ "nt"k /enet"kan &ilanan re;n%l

9NRe: kriti* "nt"k air ;an /enalir *e$ara


4/23

BILANGAN REYNOLD

Fl"ia ie(ini*ikan *e&aai =at ;an tiak a-at /ena+an -er"&a+an

&ent"k 9i*t%r*i: *e$ara -er/anen. Bila kita $%&a /en"&a+ &ent"k /a**a (l"ia8

/aka iala/ (l"ia it" ter&ent"k la-i*an7la-i*an i/ana *at" la-i*an /el"n$"r

iata* la-i*an ;an lain8 +ina /en$a-ai &ent"k &ar".

Tekanan ikenal *e&aai *i(at a*ar ari (l"ia *tatik8 tekanan ikenal

*e&aai a;a -er/"kaan ;an i&erikan %le+ (l"ia ter+aa- inin &e#ana.

Tekanan tera-at -aa *"at" titik iala/


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BILANGAN REYNOLD

Aliran (l"ia ala/ -i-a8 &era*arkan &e*arn;a &ilanan re;n%l

i&eakan /en#ai aliran la/inar8 aliran tran*i*i8 an aliran t"r&"len. Dala/ +al

ini #ika nilai NRe ke$il aliran akan /el"n$"r iata* la-i*an lain ;an ikenal

enan aliran la/inar *eankan #ika aliran7aliran tai tera-at ari* ear tertent"

;an a-at ili+at8 aliran ini i*e&"t aliran t"r&"len.

Bilanan Re;n%l /er"-akan &e*aran (i*i* ;an tiak &eri/en*i.

Bilanan ini i-er"nakan *e&aai a$"an ala/ /e/&eakan aliran la/inier an

t"r&"len i *at" -i+ak8 an i lain -i+ak a-at i/an(aatkan *e&aai a$"an "nt"k

/eneta+"i #eni*7#eni* aliran ;an &erlan*"n ala/ air. Hal ini ia*arkan -aa

*"at" keaaan &a+>a ala/ *at" ta&"n-i-a ata" ala/ *at" te/-at /enalirn;a

air8 *erin ter#ai -er"&a+an &ent"k aliran ;an *at" /en#ai aliran ;an lain.

Per"&a+an &ent"k aliran ini -aa "/"/n;a tiakla+ ter#ai *e$ara ti&a7ti&a teta-i

/e/erl"kan >akt"8 ;akni *"at" >akt" ;an relati( -enek enan iketa+"in;a

ke$e-atan kri*ti* ari *"at" aliran. Ke$e-atan kriti* ini -aa "/"/n;a akan

i-enar"+i %le+ "*a;aran -i-a8 #eni* =at $air ;an le>at ala/ -i-a ter*e&"t.

Tera-at e/-at &e*aran ;an /enent"kan a-aka+ aliran ter*e&"t

i%l%nkan aliran la/inier ata"ka+ aliran t"r&"len. Kee/-at &e*aran ter*e&"t

aala+ &e*aran /a**a #eni* air8 ke$e-atan aliran8 kekentalan8 an ia/eter -i-a.

K%/&ina*i ari kee/-atn;a akan /enent"kan &e*arn;a &ilanan Re;n%l. Ole+

*e&a& it"8 &ilanan Re;n%l a-at it"li*kan ala/ kee/-at &e*aran ter*e&"t

*e&aai &er*;arat.

NRe? 9< D:

Keteranan

NRe &iLanan Re;n%l

/a**a #eni*

Vi*$%*ita*Kekentalan

< Ke$e-atan Aliran

D Dia/eter Pi-a



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BILANGAN REYNOLD

Ha*il -er+it"nan &era*arkan ek*-eri/en ia-atkan ketent"an &a+>a "nt"k

&ilanan Re;n%l &er*;arat

3!1338 aliran i*e&"t la/inier

!133 NRe 03338 aliran i*e&"t tran*i*i antara la/inier an aliran t"r&"len

NRe 03338 aliran t"r&"len

II.2 (i#k"#ita#

Vi*k%*ita* (l"ia /er"-akan "k"ran keta+anan *e&"a+ (l"ia ter+aa-

e(%r/a*i ata" -er"&a+an &ent"k. Vi*k%*ita* i-enar"+i %le+ te/-erat"r8

tekanan8 k%+e*i an la#" -er-ina+an /%/ent"/ /%lek"larn;a. Vi*k%*ita* =at

$air $ener"n /en"r"n enan *eirin &erta/&a+n;a kenaikan te/-erat"r +al ini

i*e&a&kan a;a a;a k%+e*i -aa =at $air &ila i-ana*kan akan /enala/i

-en"r"nan enan *e/akin &erta/&a+n;a te/-erat"r -aa =at $air ;an

/en;e&a&kan &ert"r"n;a


7/23

BILANGAN REYNOLD

t ? Aala+ >akt" 9 * :

V ? Aala+ a/t" ;an $e-at ;an *elan#"tn;a /e/e$a+ an /en#ai

takterli+at.

Fakt%r ;an /e/-enar"+i aliran la/inar an t"r&"len aala+ &ilanan

Re;n%l*. Dala/ /ekanika (l"ia8 $ilangan %e&n"l'#aala+ ra*i% antara a;a

iner*ia ter+aa- a;a


8/23

BILANGAN REYNOLD

ter*e&"t enan *"at" k%ni*i aliran tertent". Bilanan ini i"nakan "nt"k

/enientika*ikan #eni* aliran ;an &er&ea8 /i*aln;a la/inar an t"r&"len.

Bilanan Re;n%l /er"-akan *ala+ *at" &ilanan tak &eri/en*i ;an -alin

-entin ala/ /ekanika (l"ia an i"nakan8 *e-erti +aln;a enan &ilanan tak

&eri/en*i lain8 Unt"k /e/&erikan kriteria "nt"k /enent"kan dynamic

similitude. )ika "a -%la aliran ;an /iri- *e$ara e%/etri*8 /"nkin -aa (l"ia

;an &er&ea an la#" alir ;an &er&ea -"la8 /e/iliki nilai &ilanan tak

&eri/en*i ;an rele


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BILANGAN REYNOLD

III.3 0am$ar 'an #u#unan alat

Keteranan Ga/&ar

1. Tanki -ena/-"n air . Kran

!. Ta&"n ka$a 4. Air /a*"k ari kran

'. Tanki -e/&"anan 5. Pi-a -e/&"anan air %

0. Tanki =at >arna . Pi-a =at >arna

III.3. Pr"#e'ur Per"$aan

1. Alirkan air ke tanki -ena/-"nan an ke/"ian t"n" +ina k%n*tan.

Selan#"tn;a &"ka kran =at >arna.

!. Catat ke$e-atan


10/23

BILANGAN REYNOLD

BAB I(

E(ALUAI DATA

I(. 1. Ta$el Pengamatan

Putara

n

!ran

aktu

*#+

(1

*m3+

(2

*m3+

(3

*m3+

(ratarata

*m3+

4

*m35#+

Jeni#

Aliran

1

!5 ! ! !4845 8'' La/iner

13 '! '3 '4 '!845 '8!5 La/iner

1 04 0 0! 008'' !82 La/iner

!3 3 02 ! 38'' !83 La/iner

PRAKTIKUM OPERASI TEKNIK KIMIA II Page 1"


11/23

BILANGAN REYNOLD

10

04 0 0! 008'' 84 La/iner

13 53 50 53 518'' 581' La/iner

1 13! 1!3 113 113845 58' La/iner

!3 !13 !33 104 !3! 13813 La/iner

1'

43 4! 45 4' 1!843 La/iner

13 10 13 1 1' 18'3 La/iner

1 !0 !! !3 !! 1483 La/iner

!3 !4! !4 !43 !4!8'' 1'81! La/iner

!

23 4 5 15803 La/iner

13 !33 !!' !1' !1! !18!3 La/iner

1 '1! '33 !24 '3!845 !381 La/iner

!3 '3 '53 '4 '4!845 181' La/iner

I(.2 Ta$el Per/itungan



12/23

BILANGAN REYNOLD

Putara

n

!ran

aktu

*#+

D

*m+

A

*m2+

4

*m35#+

6

*m5#+

7

*gr5m3+

8

*)#+

N%e f

1

182 !8' 8'' 183 382 3831 '0! 38305

13 182 !8' '8!5 181 382 3831 !18 3835'

1 182 !8' !82 183 382 3831 122803 3833

!3 182 !8' !83 38 382 3831 14580 3832

10

182 !8' 84 '81' 382 3831 2085 383!5

13 182 !8' 581' !8! 382 3831 058 383''

1 182 !8' 58' !841 382 3831 0282 383'!

!3 182 !8' 13813 '83 382 3831 458' 383!0

1'

182 !8' 1!843 080 382 3831 08 38312

13 182 !8' 18'3 801 382 3831 13!582 38314

1 182 !8' 1483 820 382 3831 11!84 38310

!3 182 !8' 1'81! 0840 382 3831 184 3831

!

182 !8' 15803 481 382 3831 1148 38310

13 182 !8' !18!3 5802 382 3831 10!'81 38311

1 182 !8' !381 581' 382 3831 1'085 3831!

!3 182 !8' 181' 4801 382 3831 1!1582 3831'



13/23

BILANGAN REYNOLD

I(.3 0rafik 'an Pem$a/a#an

Bukaan !ran 6# !ee)atan ("lumetrik

"#15 "#2 "#25 "#3 "#35 "#4 "#45"

5

1"

15

2"

25

5 $et%&1" $et%&

15 $et%&

2" $et%&

Bukaan Kran

Q (cm3/s)



14/23

BILANGAN REYNOLD

0am$ar 1. 0rafik Bukaan !ran 6# 4 'alam -9 1:9 1-9 2: 'etik

Paa a/&ar i ata* tera-at ra(ik &"kaan kran


15/23

BILANGAN REYNOLD

"#15 "#2 "#25 "#3 "#35 "#4 "#45"

1

2

3

4

5

6

7

5 $et%&

1" $et%&

15 $et%&

2" $et%&

Bukaan Kran

v (cm/s)

0am$ar 2. 0rafik Bukaan !ran 6# 6 'alam -9 1:9 1-9 2: 'etik

Paa a/&ar i ata* tera-at ra(ik &"kaan kran a *etia- 7!3 etik8 &"kaan

kran an ke$e-atan linier &er&anin l"r"*. Se/akin &e*ar &"kaan kran8 /aka

ke$e-atan linier ;an i+a*ilkan *e/akin &e*ar.



16/23

BILANGAN REYNOLD

!ee)atan Linier 6# Bilangan %e&n"l'

" 1 2 3 4 5 6 7 "

2""

4""

6""

""

1"""

12""

14""

16""

B'&aa( 1/5

B'&aa( 1/4

B'&aa( 1/3

B'&aa( 2/5

v (cm/s)

NRe

0am$ar 3. 0rafik 6 6# N%e)a'a $ukaan kran 15-9 15,9 1539 25- 'alam -9 1:9 1-9 2: 'etik

Paa a/&ar i ata* tera-at ra(ik ke$e-atan linier a *etia- 7!3 etik8



17/23

BILANGAN REYNOLD

ke$e-atan linier an &ilanan re;n%l &er&anin l"r"*. Se/akin &e*ar ke$e-atan

linier8 /aka &ilanan re;n%l *e/akin &e*ar.

Bilangan %e&n"l' 6# ;akt"r ;rik#i



18/23

BILANGAN REYNOLD

" 2"" 4"" 6"" "" 1""" 12"" 14"" 16"""

"#"1

"#"1

"#"2

"#"2

"#"3

"#"3

"#"4

B'&aa( 1/5

B'&aa( 1/4

B'&aa( 1/3

B'&aa( 2/5

NRe

f

0am$ar ,. 0rafik N%e6# f )a'a $ukaan kran 15-9 15,9 1539 25- 'alam -9 1:9 1-9 2: 'etik

Paa a/&ar i ata* tera-at ra(ik &ilanan re;n%l a *etia- &"kaan kran 1

*a/-ai enan !8 &ilanan re;n%l an (akt%r (rik*i &er&anin ter&alik.

Se/akin &e*ar &ilanan re;n%l n;a8 /aka (akt%r (rik*i ;an ter#ai *e/akin

ke$il. Beit" -"la *e&alikn;a.



19/23

BILANGAN REYNOLD

BAB (

!EIMPULAN DAN A%AN

(.1 !e#im)ulan

Setela+ /elak"kan -raktik"/ /enenai Bilanan Re;n%l a-at

ia/&il &e&era-a ke*i/-"lan *e&aai &erik"t

1. )eni* aliran ;an tera-at -aa &"kaan kran 1 *a/-ai ! aala+

la/inar.

!. Dala/ >akt" ;an *a/a8 *e/akin &e*ar &"kaan kran /aka *e/akin &e*ar

ke$e-atan


20/23

BILANGAN REYNOLD

. Nilai Bilanan Re;n%l an (akt%r (rik*i &er&anin ter&alik. Se/akin

&e*ar Bilanan Re;n%l *"at" (l"ia /aka *e/akin ke$il (akt%r (rik*i n;a.

Beit" -"la *e&alikn;a.

(.2 aran

1. Praktikan +ar"* teliti ala/ -en"k"ran


21/23

BILANGAN REYNOLD

+tt-(at+%rra/an0.&l%*-%t.$%/!31'31la-%ran7-rak7%tk7i.+t/l

+tt-aranit;%nar"t%/%.&l%*-%t.$%/!31!30aliran7la/inar7an7aliran7

t"r&"len7-aa.+t/l



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BILANGAN REYNOLD

APPENDI

Lapres Reynold Number

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