2-14　シンボリック回帰モデルを用いた石炭灰溶融温度推算式の精度検証

抄録

Stable operation of coal gasifier is the key subject for practical use of Integrated coal Gasification Combined Cycle (IGCC). It is necessary to maintain the gasifier temperature above the slag fusion temperature in order to ensure stable slag discharge. This temperature has been determined by the standardized coal ash fusion temperature measurement, which requires a lot of work and time. Therefore, in order to improve the operability of IGCC, coal ash fusion temperatures were predicted using ash composition and symbolic regression technique in this study. As a result, we have identified several key factors and a preferable estimation formula.