On the basis of the existing originally modified calculation models of theoretical combustion temperature(TCT),some factors,such as the combustion ratio of pulverized coal injection(PCI),the decomposition heat of PCI and the heat consumption of SiO2 in ash reduced in high temperature environment,were amended and improved to put forward a more comprehensive model for calculating TCT.The influences of each improvement on TCT were studied and the results were analyzed compared with those of traditional model and originally modified model,which showed that the present model could reflect the thermal state of a hearth more effectively.
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