2003 Volume 2003 Issue 727 Pages 77-89
In this study, DTA (Differential Thermal Analysis) method was applied to classify the fusion patterns of bottom ash and fly ash from municipal solid waste incinerators and sewage sludge incinerators. 41 samples were classified into 5 patterns according to the shapes of DTA curves. 577 data on a DTA curve from 900 to 1450°C were compressed to av. 19 data by a feature extraction method. The common temperatures were selected to determine the typical patterns of DTA curves in each class by the optimization using pattern recognition. Based on above procedures, we developed a model to distinguish DTA curves of unknown samples and found that the fusion characteristics were classified by measuring the DTA curve.
