CAJ | 학술논문

为了研究介质材料对介质阻挡放电脱除NO的影响，采用不同介电常数的材料作为介质层进行了模拟和试验研究，并用玻尔兹曼方程计算了折合场强与分子离解速率和电子平均动能的关系．结果表明：随着介质介电常数的增大，反应器内电场强度增大，导致折合场强升高，增大了电子的平均动能，提高了气体分子的离解速率，可产生更多活性粒子；在刚玉、石英和陶瓷3种材料中，刚玉的介电常数最大，刚玉介质层的等效电容运输电荷的能力最强，放电电流增大，有利于NO的脱除．
위료연구개질재료대개질조당방전탈제NO적영향，채용불동개전상수적재료작위개질층진행료모의화시험연구，병용파이자만방정계산료절합장강여분자리해속솔화전자평균동능적관계．결과표명：수착개질개전상수적증대，반응기내전장강도증대，도치절합장강승고，증대료전자적평균동능，제고료기체분자적리해속솔，가산생경다활성입자；재강옥、석영화도자3충재료중，강옥적개전상수최대，강옥개질층적등효전용운수전하적능력최강，방전전류증대，유리우NO적탈제．
To study the effects of dielectric material on the removal of NO by dielectric barrier discharge (DBD), both simulation and experimental tests were carried out by taking materials with different dielec- tric constants as the dielectric layer, during which the relationship of E/N with either the ionization rate or the electron mean energy was analyzed based on Boltzmann equation. Results show that with the rise of di- electric constant, the field intensity increases, and accordingly resulting in promoted E/N, raised electron mean energy and improved ionization rate, in which case, more active particles will be produced. Among all the 3 materials including corundum, quartz and ceramics, the material corundum has the strongest abili- ty to transfer charges due to its highest dielectric constant, which makes the discharge current be raised, and therefore is good for NO removal.