陈巨辉,孟诚,王帅,于广滨,胡汀,林枫,李九如

• 1:哈尔滨理工大学机械学院能源与动力工程系
• 2:哈尔滨第703研究所燃气轮机室
• 3:哈尔滨工业大学能源科学与工程学院

摘要(Abstract)：

考虑鼓泡流化床生物质气化过程多组分颗粒运动特点,建立多组分颗粒速度脉动二阶矩模型,结合化学反应动力学方法描述鼓泡流化床内生物质气化过程。模拟的气体组分结果与采用原始颗粒动理学模型的模拟结果进行了比较,并给出了两种粒径碳颗粒的浓度与温度瞬时分布。分析了两种碳颗粒的速度时均径向分布及速度脉动二阶矩时均径向分布,两种碳颗粒的速度分布一致,说明不同粒径碳颗粒混合充分。粒径较大的碳颗粒速度脉动二阶矩在轴向与径向上均较大,粒径的增加使得颗粒速度脉动增强。模拟统计了计算域内两种颗粒的速度脉动各向异性随颗粒浓度变化关系,各向异性随颗粒浓度的增加逐渐减弱,粒径较大的碳颗粒在计算域内的各向异性平均效果不如粒径较小的碳颗粒明显。

关键词(KeyWords)： 速度脉动各向异性;二阶矩模型;多组分;生物质气化;鼓泡流化床

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51406045);; 中国博士后科学基金(2016M590122);; 哈尔滨理工大学青年拔尖创新人才培养计划资助(201504)

作者(Author): 陈巨辉,孟诚,王帅,于广滨,胡汀,林枫,李九如

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