Abstract
Abstract
Coal energy is used as the greatest main source of power plant in this day and age. The consequence of the coal energy exertion is the ash deposits are cumulated in the used boiler. In this experiment, the fly ash and ash deposit are analyzed by using SEM/EDX (scanning electron microscope/energy dispersive x-ray) to obtain the tendency of the ash deposits with a base to acid ratio. the sample of ash deposit was selected at three layers of observation to discover the slagging index of the combustion process. The result of the study indicates that the tendency of the ash deposits is 0.959736 and the slagging index on three layers observation are 0.4987, 0.264183, and 0.140248. The result of the slagging index on three layers observation is categorized as low. The trigger compound of cumulation is K2O which is found more in the ash deposits around the pipe and constitutes in the lowest melting point compounds as compared to the other compounds contained in the slagging ash.