7. Sludge Separator
T = 80 C
-Minyak -Air
-Kotoran
T = 90 C
-Minyak -Air
-Kotoran T = 90
C -Minyak
-Air -Kotoran
24 26
25
Sludge Separator
Panas Masuk : Alur 24 :
Q Minyak 2.475,194 kg x 15,307 kJkg K x 65 K
= 2.462.706,646
kJ Q Air
= 6.650,615 kg x 4,2164 kJkg K x 65 K =
1.822.707,451 kJ
Q Kotoran = 267,715 kg x 0,882 kJkg K x 65 K
= 15.348,101
kJ Total panas yang masuk
= 4.300.762,198 kJ
Panas keluar : Alur 26 :
Q Minyak = 59,179 kg x 15,307 kJkg K x 65 K
= 58.880,442
kJ Q Air
= 6.312,448 kg x 4,2164 kJkg K x 65 K =
1.730.027,374 kJ
Q Kotoran = 203,840 kg x 0,885 kJkg K x 65 K
= 11.686,147
kJ
Alur 25 :
Q Minyak = 2.334,760 kg x 15,307 kJkg K x 65 K
= 3.322.981,136
kJ Q Air
= 425,809 kg x 0,882 kJkg K x 65 K =
24.411,630 kJ
Q Kotoran = 57,488 kg x 4,2164 kJkg K x 65 K
= 15.755,506
kJ
Universitas Sumatera Utara
Total Panas yang keluar = 4.163.742,235 kJ
Panas Masuk + Panas dibutuhkan = Panas Keluar Panas dibutuhkan
= Panas keluar – Panas masuk =
4.300.762,968 –
4.163.742,235 =
137.019,963 kJ
Entalphi steam pada 1 atm, T 90 C = 2.283,2 kJkg K Saturated steam
Maka Steam yang dibutuhkan : m
= λ
dQ
=
kJkg 2.283,2
kJ 963
, 019
. 137
= 60,012 kg Tabel LB.7 Neraca Panas pada Sludge Separator
Panas masuk kJ Panas Keluar kJ
Komposisi Alur 24
Alur 25 Alur 26
Minyak Air
Abu 2.462.706,646
1.822.707,451 15.348,101
2.322.981,136 24.411,630
15.755,506 58.880,442
1.730.027,374 11.686,147
Panas dibutuhkan 137.019,963
- -
Jumlah 4.300.762,198 2.363.148,272
1.800.593,963
Total 4.300.762,198 4.300.762,198
8. Oil Purifier
T = 90 C
-Minyak -Air
-Kotoran -FFA
16 T = 80
C -Minyak
-Air -Kotoran
-FFA T = 80
C -Air
-Kotoran 17
18
Oil Purifier Panas Masuk :
Alur 16 :
Q Minyak = 5.270,352 kg x 15,307 kJkg K x 65 K
Universitas Sumatera Utara
= 5.243.763,074
kJ Q Air
= 27,593 kg x 4,2164 kJkg K x 65 K =
7.562,303 kJ
Q Kotoran = 11,037 kg x 0,882 kJkg K x 65 K
= 632,751
kJ Q FFA
= 209,710 kg x 6,866 kJkg K x 65 K =
93.591,476 kJ
Total panas masuk = 5.345.549,604 kJ
Panas Keluar : Alur 17 :
Q Air = 9,288 kg x 4,2164 kJkg K x 65 K
= 2.545,525
kJ Q Kotoran
= 3,981 kg x 0,882 kJkg K x 65 K =
228,230 kJ
Alur 18 :
Q Minyak = 5.277,158 kg x 15,307 kJkg K x 55 K
= 4.442.760,163
kJ Q Kotoran
= 9,376 kg x 4,2164 kJkg K x 55 K =
454,830 kJ
Q Air = 25,922 kg x 4,2164 kJkg K x 55 K
= 6.011,364
kJ Q FFA
= 202,968 kg x 6,866 kJkg K x 55 K =
76.646,806 kJ
Total panas yang keluar = 4.528.646,918 kJ
Panas masuk = Panas keluar + Panas hilang = 5.345.549,604 – 4.528.646,918
= 816.902,686
kJ
Universitas Sumatera Utara
Tabel LB.8 Neraca Panas pada Oil Purifier
Panas Masuk kJ Panas Keluar kJ
Komposisi Alur 16
Alur 17 Alur 18
Minyak Kotoran
Air FFA
5.243.763,076 632,751
7.562,303 93.591,476
- 2.545,525
228,230 -
4.442.760,163 454,830
6.011,364 76.646,806
Panas hilang -
816.902,686
Total 5.345.549,604 5.345.549,604
9. Vacuum Drayer
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