agitasi LAPORAN TETAP
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Transcript of agitasi LAPORAN TETAP
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7/29/2019 agitasi LAPORAN TETAP
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DATA PENGAMATAN
Pengaduk Air dalam waktu 1 menitNo. Waktu Kecepatan(m) Banyak Putaran
1 1 menit 1 43
2 1 menit 1,5 96
Pengaduk CampuranNo. Kecepatan(run) Waktu Penambahan
Indikator pp + NaOH
Waktu penambahan /
penetralan dengan H2SO4
Suhu (oC)
1 1 4 4 40
2 1,5 25 4 34
Perubahan warna setelah
ditambah H2SO4
Perubahan warna setelah
ditambah Indikator pp + NaOH
Putih Merah muda Merah muda - Putih
No. Kecepatan (run) PerlakuanViscositas (pa) Density (gr/mL)
1 1,5 -penambahan
indikator pp +
NaOH
-penetralan
dengan H2SO4
156, 52 x 10-3
135, 8 x 10-3
1,0672
1,09
2 1 -penambahan
indikator pp +
NaOH
-penetralan
dengan H2SO4
295, 9 x 10-3
294, 36 x 10-3
1,0812
1,0844
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PERHITUNGAN
ViscositasRun 1,5
Penambahan NaOH97,4 + 14,4 = 55,9 Cp
kkkjjjj2
Penetralan dengan H2SO4 = 48,5 Cp42 putaran = 0,7 x 55,9 x 4
kkk j60s
= 156,52 Cp = 156, 52 . 10-3
kg/m.s
42 putaran = 0,7 x 48,5 x 4
kkk j60s
= 135,8 Cp = 135,8 . 10-3
kg/m.s
Run 1
Penambahan NaOH98,3 + 36,2 = 67,25 Cp
kkkjjjj2
Penetralan dengan H2SO4 95,4 + 38,4 = 66,9 Cp
kkkjjjj2
66 putaran = 1,2 x 4 x 67,25k j60s
= 295,9 Cp = 295,9 . 10-3
kg/m.s
66 putaran = 1,2 x 4 x 66,9k j60s
= 294,36 Cp = 294,36 . 10 -3kg/m.s Density
- Berat Piknometer kosong = 41,25 gr- Volume piknometer = 25 mL
Run 1,5
Penambahan NaOH
Berat Piknometer + zat = 67,93 gr Berat zat = 67,93 - 41,25 = 26,68 gr
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P= am = 26,68 grV 25 mL
= 1,0672 gr/mL
Penetralan H2SO4
Berat Piknometer + zat = 68,50 gr Berat zat = 68,50 - 41,25 = 27,25 gr
P= am = 27,25 grV 25 mL
= 1,09 gr/mL
Run 1
Penambahan NaOH
Berat Piknometer + zat = 68,36 gr Berat zat = 68,36 - 41,25 = 27,11 gr
P= am = 27,11 grV 25 mL
= 1,0844 gr/mL
Menghitung Reynold Number
NRe = n . Da2
. p
jmjmmjjjjr
Run 1
Penambahan NaOH
NRe = 0,85 rad/s x (0,2 m)2
x 1,0812 kgr/mL . 103
dm 295,9 x 10-3 kg/m.s
= 36 , 76
ssssss295,9 x 10-3
= 124, 2311
Penambahan H2SO4
NRe = 0,85 rad/s x (0,2 m)
2
x 1,0844 kgr/mL . 10
3
dm 294,36 x 10
-3kg/m.s
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= 36 , 8696
ssssss294,36 x 10-3
= 125, 2534
Run 1,5
Penambahan NaOH
NRe = 1,68 rad/s x (0,2 m)2
x 1,0672 kgr/mL . 103
dm 156,52 x 10-3
kg/m.s
= 71, 71584
ssssss 156,52x 10-3
= 458, 1896
Menghitung Power Number (Np)
Np = p. gc P = KT . n3 . Da5 . p
jjjjjjjjjjjjjjjjjjjjjn3
. Da5
. p gc .v
n = kecepatan (rpm)
Run 1 = 43
Dimana 43 putaran = 0,7166
kkk j60s
Run 2 = 96
Dimana 96 putaran = 1,6
kkk j60s
Run 1
Penambahan NaOH
P= 1 x (0,7166 1/s)3 . (0,2 m)5 . 1,0812 . 103 kg/m2
ffffffffffffffffffnjj 9,81 m/s2
= 1 x 0,3671 1/s3
x 3,2 . 10-4
x 1,0812 . 103
kg/m2
jjjjjjjjjjjj 9,81 m/s2
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= 0,0129 kg/m.s
Np = 0,0129 kg/m.s x 9,81 m/s2
0,7166 1/s)3
. (0,2 m)5
. 1,0812 . 103
kg/m.s
= 0,1265
h 0,1269
= 0,9968
Penambahan H2SO4
P= 1 x (0,716 1/s)3 . (0,2 m)5 . 1,0844 . 103 kg/m2
ffffffffffffffffffnjj 9,81 m/s2
= 1 x 0,3671 1/s3 x 3,2 . 10-4 x 1,0844 . 103 kg/m2jjjjjjjjjjjj 9,81 m/s
2
= 0,048 kg/m.s
Np = 0,048 kg/m.s x 9,81 m/s2
( 0,716 1/s)3
. (0,2 m)5
. 1,0844 . 103
kg/m.s
= 0,4708
h 0,2484
= 1,8953
Run 1,5
Penambahan NaOH
P= 1 x (1,6 1/s)3 . (0,2 m)5 . 1,0672 . 103 kg/m2
ffffffffffffffffffnjj 9,81 m/s2
= 1 x 4,096 1/s3
x 3,2 . 10-4
x 1,0672 . 103
kg/m2
jjjjjjjjjjjj 9,81 m/s2
= 0,1426 kg/m.s
Np = 0,1426 kg/m.s x 9,81 m/s2
(1,6 1/s)3
. (0,2 m)5
. 1,0672 . 103
kg/m2
= 1,3989
h 1,3988
= 1,00007
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Penambahan H2SO4
P= 1 x (1,6 1/s)3 . (0,2 m)5 . 1,09 . 103 kg/m2
ffffffffffffffffffnjj 9,81 m/s2
= 1 x 4,096 1/s3 x 3,2 . 10-4 x 1,09 . 103 kg/m2
jjjjjjjjjjjj 9,81 m/s2
= 0,1456 kg/m.s
Np = 0,1456 kg/m.s x 9,81 m/s2
(1,6 1/s)3
. (0,2 m)5
. 1,09 . 103
kg/m2
= 1,4283
h 1,4286
= 0,9997
Menghitung Froude NumberNfr = n
2. Da
g g
Dimana = n = kecepatan (rpm)
Run 1 43 putaran = 0,7166
kkk j60s
Run 1,5 96 putaran = 1,6
kkk j60s
Run 1
Nfr = (0,716 1/s)2
. 0,2 m
jjjjjjjjjjjj 9,81 m/s2
= 0,0416
Run 1,5
Nfr = (1,6 1/s)2
. 0,2 m
jjjjjjjjjjjj 9,81 m/s2
= 0,0328
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Menghitungg Webers Number
W = Da3
. n2.pa
n gc
Massa tepung kanji = 500 gr = 0,5 kg
Massa air = 12 L x 1 kg/ L = 12 kg
Massa larutan = 12, 5 kg
Run 1
Peambahan NaOH
r= 12,5 kg = 36,76 kg/m
h 0,34 m
w =(0,7166 1/s)2
. (0,2 m)3
. 1,0812 . 103
kg/m2
ffffffffffffffffffnjj 336,76 kg/m x 9,81 m/s2
= 0,1774
n 360,6156
= 0,00049
Penetralan dengan H2SO4
r= 12,5 kg = 35,71 kg/mh 0,35 m
w =(0,7166 1/s)2
. (0,2 m)3
. 1,0844 . 103
kg/m2
ffffffffffffffffffnjj 335,71 kg/m x 9,81 m/s2
= 0,1774
n 350,3151
= 0,00051
Run 1,5
Peambahan NaOH
r= 12,5 kg = 39,0625 kg/mh 0,32 m
w =(1,6 1/s)2 . (0,2 m)3 . 1,0672 . 103 kg/m2
fffffffffffff339,0625 kg/m x 9,81 m/s2
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= 0,0023
Penetralan dengan H2SO4
r= 12,5 kg = 37,8788 kg/mh 0,33 m
w =(1,6 1/s)2
. (0,2 m)3
. 1,09 . 103
kg/m2
fffffffffffff337,8788 kg/m x 9,81 m/s2
= 0,0024
Menghitung Faktor CampuranFt = nt T Da
2Dt
g
1/6
Dt H n2. Da
Run 1
Penambahan NaOH
Ft = 0,716 1/s x 4s 0 , 22
0, 42 m
9,81 m/s2
1/6
0,42 m 0, 34 (0,716 1/s)2
x 0,2 m
= 0,716 x 4 x 0,2267 x 1,0564 x 2,1418
= 1,4690
Penambahan H2SO4
Ft = 0,716 1/s x 4s 0 , 22
0, 42 m
9,81 m/s2
1/6
0,42 m 0, 35 (0,716 1/s)2
x 0,2 m
= 0,716 x 4 x 0,2267 x 1,0954 x 2,1418
= 1,5233
Run 1,5
Penambahan NaOH
Ft = 1,6 1/s x 25s 0 , 2 2 0, 40 m
9,81 m/s21/6
0,40 m 0, 32 (0,716 1/s)2
x 0,2 m
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= 1,6 x 25 x 0,25 x 1,1180 x 1,6374
= 18,3061
Penambahan H2SO4
Ft = 1,6 1/s x 4s 0 , 22
0, 40 m
9,81 m/s2
1/6
0,40 m 0, 32 (0,716 1/s)2
x 0,2 m
= 1,6 x 4 x 0,23 x 1,1146 x 1,6379
= 2,6873
