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To solve the high NOx emissions associated with a 600 MWe utility boiler with enhanced-ignition axial control low NOx (EI–XCL) burners, continuous improvement of the previously proposed centrally fuel-rich (CFR) burner technology lies on three aspects: (1) the 36 EI–XCL burners in the original furnace were retrofitted with CFR burners; (2) the 26 over fire air (OFA) ports in two layers have been added...
To reduce oil consumption during firing-up and partial-load operation, a tiny-oil ignition burner has been recommended. Through reacting-flow experiments performed on a full-scale experimental setup, the influence of different oil flow rates on bituminous coal combustion as well as flow rates without coal feed was analyzed. The ignition burner is identical to that normally used in an 800 MWe utility...
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