Modelling of NO_xemissions in tangential coal fired boiler Part 1 - Conventional boiler

In a power generation unit, the dynamic nature of a tangential coal fired boiler integrating with the complex NOxformation mechanism leads to a major difficulty for the prediction of NOxemission levels under different operating conditions. This paper suggests a simple method to tackle the problem. A model was developed by considering NOxformation mechanisms, burner configuration and air flow distribution. With the aid of the data obtained from operation, an empirical equation was developed for the prediction of NOxemission levels of a conventional tangential coal fired boiler that is not equipped with any de-NOxfacility.