抄録
Price of high grade coal is rising with increasing the consumption of low grade coal. Furthermore, biomass use has become important because of depletion of fossil fuel and global warming issues. Biomass have problems such as low melting points of ash. In boiler, performance of heat transfer tube is decreased and surface of metal tube is corroded. In this study, we examined the melting characteristics of the peat ash and mushroom agriculture waste ash. As a results, weight of ash was decreased with increasing temperature. The melting points of peat ash is 1200℃ and biomass ash is 1300 ℃.
