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SO2 In Flue Gas Desulphurization For Different Types Of Sub-Bituminous Coal

Table 3:

Boiler parameters (average value) Coal types
A B C D E F
Load generation (MWn) 695 696 694 695 696 696
Mean superheater spray flow, (t/h) 20 18 85 75 80 85
Mean reheater spray flow, (t/h) 0 0 0 0 0 0
Final superheat steam temperature, °C 540 541 540 541 541 540
Final reheat steam temperature, °C 540 541 541 541 540 541
Superheater metal temperature, °C 541 545 544 543 543 545
Reheater metal temperature, °C 538 539 539 541 538 537
Economiser outlet temperature, °C 385 389 381 379 384 383
Flue gas outlet temperature, °C 171 173 175 181 180 182
Plant efficiency , % 35.2 35.1 35.0 35.4 35.2 35.5
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