In order to obtain the combustion performance of different coals by thermogravimetric analysis

the test conditions were optimized

and the TG and DTG curves of coal samples were obtained. Moreover

through effective feature index extraction

the calculation method and evaluation standard of the CSI and BI index which can reflect the ignition and burnout properties of single coal and mixed coal were obtained. The correlation analysis between CSI and BI indexes and the ignition temperature IT of pulverized coal flow and the burnout rate of one-dimensional flame furnace(Bp)(the IT and Bp have been widely used in industries) were carried out. The results show that

the thermogravimetric combustion performance indexes obtained under static combustion conditions have sufficient discrimination accuracy and the test result can guide the engineering application of pulverized coal in utility boilers.