Correlation of ash behaviour in power stations using the improved ash fusion test

The improved ash fusion test has been found to be a useful tool for correla tion with ash behaviour in power stations, The improved ash fusion test mon itors the ash behaviour in the standard ash fusion test furnace and allows some interpretations on the ash fusion temperatures and ash stickiness. The results of a survey sent to nine Australian power stations on general slag ging experience of the main feed coals were compared with the results of th e improved ash fusion test. Comparison showed that improved ash fusion test indexes reasonably correlated with perceived performance of the coals in t he power stations. (C) 1999 Elsevier Science Ltd. All rights reserved.