초록 |
Combustion characteristics of low rank coal with high moisture,and standard pulverized coals are experimentally investigated using TGA and DTF. The coals tested are three kinds of coal with moisture content ranging from 8.32 to 26.82%. The results show that the burn-out time at TGA rises as moisture content increases, and standard pulverized coal with 8.32% moisture content showed the lowest activation energy of 55.73kJ/mol. In case of the high amount of moisture, the combustion efficiency decreases due to evaporation heat loss. |