Table 1.
Technical data of the large-scale OFz-425 CFB boiler.
| Boiler Type | OFz-425 |
|---|---|
| Nominal thermal capacity, MWth | 335.8 |
| Live steam temperature, °C | 560 |
| Live steam pressure, MPa | 16.1 |
| Secondary steam temperature, °C | 560 |
| Secondary steam pressure, MPa | 4.0/3.8 |
| Feedwater temperature, °C | 250 |
| The efficiency of the boiler, % | 91 |
| Maximum continuous rating, t/h | 425 |
| Live steam temperature, °C | 560 |
| Secondary steam flow rate, t/h | 371.2–382.0 |
| Feedwater pressure, MPa | 17.9 |
| Excess air in the furnace, | 1.2 |
| The temperature of the fluidized bed, °C | 850–870 |
| Fluidizing gas velocity, m/s | 5–8 |