
- Induced Draft Fan (IDF)
PLTU 1 Jatim Pacitan memiliki 2 set ID Fan dengan kapasitas 2×50 %. ID Fan berfungsi untuk mempertahankan pressure di dalam furnace boiler supaya bernilai negatif dengan cara menghisap atau mengalirkan gas hasil pembakaran batubara pada furnace menuju stack dengan cara paksa oleh fan (ID Fan). Adapun spesifikasi teknis dari ID Fan ditunjukkan oleh Tabel 3.3 berikut ini.
| NO | NAME | UNIT | TB condition | BMCR condition | Guaranteed condition |
| Designed coal Rank | Designed coal | Designed coal | |||
| 1 | Inlet flow | m3/s | 293.8 | 242.8 | 231.6 |
| 2 | Fan full Pressure | Pa | 5527 | 4252 | 4135 |
| 3 | Inlet air Temperature | ℃ | 122.3 | 122.3 | 122.3 |
| 4 | Inlet air Temperature | kg/m3 | 0.8778 | 0.8778 | 0.8778 |
| 5 | Fan shaft Power | Kw | 1936 | 1199 | 1132 |
| 6 | full pressure effiency | % | 83 | 86 | 84 |
| 7 | Air fan rotation speed | r/min | 990 | 990 | 990 |
Tabel 3.3 Spesifikasi Teknis Induced Draft Fan
Data technical parameters:
- Impeller external diameter : 2.6 m
- Impeller weight : 1332 kg
- Max. weight when installed : 13830 kg
- Hoisting weight when maintained : 2830 kg
- Total fan weight : 29688 kg(motor and coupler not included)
- Fan GD2 : 6300 kgm2
- Electric actuator torque : 8000 Nm
Cooling fan type G9-19№5A( one set at left and right 90°)
- Cooling fan speed : 2960 r/min
- Cooling fan power : two sets 22kW
Motor parameter
- Motor type : YKK710-6TH-W
- Rated power : 2150 kW
- Rated speed : 990 r/min
- Rated voltage : 6300 V

