Abstract
Joint research partner PLANTEC Inc. developed the vertical stoker-type incinerator that eliminates the horizontal movement of waste as in conventional stoker furnaces and completes combustion without moving the waste in a vertical position. In this study, Basic experimental device was manufactured to simulate the carbon combustion zone formed in the lower part of the furnace. Preliminary experiments were conducted to obtain the necessary data to support the combustion conditions of the vertical stoker-type incinerator. Continuous measurements of sample mass and various gas concentrations in the combustion process became possible. Regarding the combustion phenomenon of woody pellets and charcoal used as a substitute for waste, the higher the furnace temperature, the faster the pyrolysis, ignition, and combustion, and the faster the mass reduction, but the difference due to the furnace temperature becomes smaller. It was found that woody pellets complete combustion in two stages: decomposition (gas phase) combustion of pyrolyzed volatiles and surface (char) combustion of fixed carbon mainly occurring in charcoal.
