BAB IV NERACA ENERGI
Basis perhitungan = 1 jam
Satuan operasi = kJjam
Temperatur referensi = 25
o
C 298 K
4.1 Pelletizing Machine L-102
Tabel 4.1 Neraca Panas Pelletizing Machine L-102
Komponen Masuk kJ
Keluar kJ
SiO
2
156.994,2867 196.313,0313
C 135.896,1639
159.650,8941 Na
2
O 269,4703
1.668,7526 FePO
4
550,6137 830,4358
H
2
O 3.566,2332
10.714,6635 Jumlah
297.276,7679 369.177,7774
Q 71.901,0095
-
Total 369.177,7774
369.177,7774
4.2 Bucket Elevator C-110
Tabel 4.2 Neraca Panas Bucket Elevator C-110
Komponen Masuk kJjam
Keluar kJjam H
8
H
9
SiO
2
196.313,0313 176.541,0481
C 159.650,8941
147.630,8532
UNIVERSITAS SUMATERA UTARA
Na
2
O 1.668,7526
1.107,0712 FePO
4
830,4358 546,0781
H
2
O 10.714,6635
7.137,8942 Jumlah
369.177,7774 332.962,9448
Q -
36.214,8326
Total 369.177,7774
369.177,7774 4.3
Burner B-101
Tabel 4.3 Neraca Panas pada Burner B-101
Komponen Masuk kJjam
Keluar kJjam H
10
H
12
H
13
CH
4
7.669,0199 -
- C
2
H
6
665,6076 -
- C
3
H
8
154,4995 -
- C
4
H
10
204,7761 -
- O
2
- 18.181,0788
1.368.687,9449 N
2
- 77.862,7303
22.986.992,0204 CO
2
- -
1.551.678,4385 H
2
O -
- 3.721.043,2095
Jumlah 8.693,9032
96.043,8091 29.628.401,6133
Sub Total 104.737,7123
29.628.401,6133 ∆Hr
29.523.663,9010 -
Total 29.628.401,6133
29.628.401,6133
4.4 Rotary Kiln Pre-Heater B-102
Tabel 4.4 Neraca Panas Rotary Kiln Pre-Heater B-102
Komponen Masuk kJjam
Keluar kJjam H
9
H
13
H
15
H
14
SiO
2
176.541,0481 -
4.007.033,8625 -
C 147.630,8532
- 2.510.690,8311
- FePO
4
546,0781 -
56.396,8703 -
Na
2
O 1.107,0712
- 88.032,5002
-
UNIVERSITAS SUMATERA UTARA
H
2
O 7.137,8942
3.721.043,2095 -
7.401.502,9396 N
2
- 22.986.992,0204
- 13.713.556,8035
CO
2
- 1.551.678,4385
- 1.231.122,8678
Jumlah 332.962,9448 29.628.401,6133
666.2154,0641 23.299.210,4939
Sub Total 29.961.364,5581
29.961.364,5581
Total 29.961.364,5581
29.961.364,5581
4.5 Electric Furnace B-103
Tabel 4.5 Neraca Panas Electric Furnace B-103
Komponen Masuk kJjam
Keluar kJjam H
15
H
16
H
17
H
18
SiO
2
4.007.033,8625 -
- 383.393,0281
C 2.510.690,8311
- -
356.468,8006 FePO
4
56.396,8703 -
- 214.863,0053
Na
2
O 88.032,5002
- -
328.883,9479 SiC
- -
- 6.298.498,8766
O
2
- 12.105,1121
- -
N
2
- 57.577,1166
37.057.546,7412 -
CO
2
- 11.774.571,9283
-
Jumlah 6.662.154,0641 69.682,2287
48.832.118,6695 7.582.107,6585
Sub Total 6.731.836,2929
56.414.226,3280 ∆Hr
4.692.961,5647 -
Q 44.989.428,4704
- Total
56.414.226,3280 56.414.226,3280
4.6 Cooling Yard A-101