Pelletizing Machine L-102 Bucket Elevator C-110 Burner B-101 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 2 104.662,8578 130.875,3542 C 90.597,4426 106.433,9294 Na 2 O 367,0758 1.112,5017 FePO 4 179,6469 553,6239 H 2 O 2.377,4888 7.143,1090 Jumlah 198.184,5119 246.118,5182 Q 47.934,0063 - Total 246.118,5182 246.118,5182

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 2 104.662,8578 117.694,0320 C 90.597,4426 98.420,5688 Na 2 O 367,0758 738,0474 FePO 4 179,6469 364,0521 H 2 O 2.377,4888 4.758,5962 Jumlah 198.184,5119 221.975,2965 Q - 24.143,2217 Total 246.118,5182 246.118,5182 UNIVERSITAS SUMATERA UTARA

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 5.112,6799 - - C 2 H 6 443,7384 - - C 3 H 8 102,9997 - - C 4 H 10 136,5174 - - O 2 - 12.120,7192 912.458,6299 N 2 - 51.908,4869 15.324.661,3469 CO 2 - - 1.034.452,2923 H 2 O - - 2.480.695,4730 Jumlah 5.795.9355 64.029,2061 19.752.267,7422 Sub Total 69.825.1415 19.752.267,7422 ∆Hr 19.682.442.6006 - Q - - Total 19.752.267.7422 19.752.267,7422

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 2 117.694,0320 - 2.671.355,9083 - C 98.420,5688 - 1.673.793,8874 - FePO 4 364,0521 - 37.597,9135 - Na 2 O 738,0474 - 58.688,3334 - H 2 O 4.758,5962 2.480.695,4730 - 4.934.335,2931 O 2 - 912.458,6299 - 635.351,9220 N 2 - 15.324.661,3469 - 9.142.371,2023 UNIVERSITAS SUMATERA UTARA Tabel L.B.8 Neraca Energi pada Rotary Kiln…….. Lanjutan CO 2 - 1.034.452,2923 - 820.748,5786 Jumlah 221.975,2965 19.752.267,7422 4.441.436,0427 15.532.806,9960 Sub Total 19.974.243,0387 19.974.243,0387 ∆Hr - - Q - - Total 19.974.243,0387 19.974.243,0387

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 2.671.355,9083 - - 255.595,3521 C 1.673.793,8874 - - 237.645,8671 FePO 4 37.597,9135 - - 143.242,0035 Na 2 O 58.688,3334 - - 219.255,9652 SiC - - - 41.98.999,2511 O 2 - 8.070,748 - - N 2 - 38.384,7444 24.705.031,1608 - CO 2 - - 7.849.714,6188 - Jumlah 4.441.436,0427 46.454,8192 32.554.745,7796 5.054.738,4390 Sub Total 4.487.890,8619 37.609.484,2186 ∆Hr 3.128.641,0432 - Q 29.992.952,3136 - Total 37.609.484,2186 37.609.484,2186 UNIVERSITAS SUMATERA UTARA

4.6 Cooling Yard A-101