摘要
建立高梯度磁场捕集燃煤PM10实验台,采用电气低压冲击器测量颗粒浓度的变化,利用响应曲面法对PM10捕集效率进行实验研究,得到捕集效率的预测模型。计算结果表明通过该预测模型可以很好地描述捕集效率与颗粒浓度、磁场强度、气体流速和磁介质填充率等重要操作参数之间的关系。因素分析表明磁场强度对捕集效率的影响最大,同时颗粒浓度与磁场强度、磁场强度与气体流速以及磁场强度与磁介质填充率的交互作用均对捕集效率有重要的影响。
The capture efficiency of PM10 from coal combustion in high gradient magnetic field was studied using response surface methodology （RSM）, which enables effect examinations of parameters with a moderate number of experiments. All experiments were conducted on a test rig, which incorporates a high gradient magnetic field, with variations of particle concentration real time measured by an electric low pressure impactor （ELPI）. The PM10 capture efficiency was well correlated with operating parameters, including particles density, magnetic flux density, gas velocity and magnetic medium＇s filling ratio. Effect test indicate that the magnetic flux density has the most significant influence on the capture efficiency. All of the interactions of particles density with magnetic flux density, magnetic flux density with gas velocity, and magnetic flux density with magnetic medium＇s filling ratio play important roles.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2009年第20期74-78,共5页
Proceedings of the CSEE
关键词
响应曲面法
高梯度磁场
燃煤PM10
捕集效率
response surface methodology
high gradient magnetic field
PM10 from coal combustion
capture efficiency
