A Mathematical Model of Gas Flow Distribution in the Grate‐Kiln Iron Ore Pellets Induration Process

Although models for general gas (e.g. natural gas) pipeline networks have been well established, research on another kind of gas networks we named gas passage networks (i.e. GPN; set that gas pass through spaces) in industry is rare. The features of the GPN are hard‐determination leakage (i.e. 24.4%), quite‐different thermophysical‐properties, more cycles and not engaging cycle energy equations directly. And the gas network of grate‐kiln‐cooler (GKC) plant used for iron ore pellets induration is belong to this type. This paper develops a mathematical model to evaluate the flow distribution in this kind. Further, a field test was systematically carried out on a GKC plant in China. At last, the result shows that good agreement was observed, indicating the validity of the model.