Typical calculations require approximately 2-30 CPU minutes, depending on the conditions of char combustion. Memory requirements are around 300 kb. Char oxidation is an important issue in energy utilization. Unburned carbon in boiler fly ash, which represents a loss of efficiency and creates a disposal problem for utilities, is an important current concern as combustion zones are modified for NOx control. BCOM could be applied very well to meet these challenges.
Customer needs high tempera-ture char oxidation kinetics.
Future developments of the model include addition of packages which will enhance its ability to predict high pressure oxidation and late burnout behavior. Also, there are plans to develop a subroutine which will allow predictions starting only from coal properties instead of char properties. Kent Morris and Troy Ness are also acknowledged for their assistance. G.R. Gavalas, Combust.