堆积密度对燃料阴燃初始阶段失重速率的影响  

Effects of bulk density on mass loss rate during agro-stalks smoldering

作　　者：毕冬梅 何芳 窦沙沙 付加庭 

机构地区：[1]山东理_T大学,山东淄博255091

出　　处：《可再生能源》2008年第2期40-42,45,共4页Renewable Energy Resources

基　　金：国家自然科学基金项目(50376031);国家自然基金项目(50576048);山东省自然科学基金项目(2004ZX21)

摘　　要：为了研究燃料堆积状态对其阴燃过程的影响,在阴燃炉(52 cm×40 cm×55 cm)中对堆积密度分别为40,50,60 kg/m3的3种燃料(玉米秸、麦秸和草)进行阴燃试验研究。结果表明:当堆积密度为40 kg/m3时,3种燃料在干燥阶段的失重速率明显大于堆积密度为50,60 kg/m3的燃料,此时玉米秸、麦秸和草平均失重速率分别为0.125,0.06,0.0465 kg/min。当堆积密度为50,60 kg/m3时,麦秸、玉米秸、草在阴燃初始阶段(即干燥和热解阶段)的失重速率差别不明显。In order to investigate the influence of bulk condition on smoldering velocity. Smoldering experiments on corn stalk, wheat straw and grass at different bulk densities of 40,50,60 kg/m^3 have been carried out in the smoldering furnace （52 cm×40 cm×55 cm）. Result showed that： When the bulk density is 40 kg/m^3, the average mass loss rate of corn stalk ,wheat straw and grass is 0.125, 0.06, 0.046 5 kg/min respectively at the initial stage,which is remarkably larger than those of 50,60 kg/m^3. While the mass loss rate difference is indistinctive at the bulk density of 50, 60 kg/m^3 for corn stalk, wheat straw and grass at the initial stage.

关 键 词：秸秆 阴燃 堆积密度 失重速率 

分 类 号：TK16[动力工程及工程热物理—热能工程] S216.2[农业科学—农业机械化工程]