Determinação da curva de alimentação de biomassas por rosca sem-fim de uma fornalha de leito fluidizado circulante em escala de laboratório

Abstract

This study aimed to determine the feeding curves of the circulating fluidized bed pilot furnace using sawdust, and compare it with rice husk and sugarcane bagasse, to validate whether the feeder can supply the amount of biofuel required depending on the amount of air added to the furnace. For this purpose, calculations were made related to the feed of the screw and the amount of biofuel required for fluidization of the bed, based on the air flow through the riser and the mass ratio of air to fuel. It was concluded that sawdust requires the lowest mass quantity for bed fluidization, reducing fuel consumption and optimizing storage space. In addition, the rotation required for feeding and the rotation interval are twice as low compared to other biomasses, allowing greater operational precision and adaptation to the process.