Pelletizing Machine L-102 Bucket Elevator C-110 Rotary Kiln Pre-Heater B-102 Electric Furnace B-103

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