摘要
针对空气和氦气介质,基于最易穿透粒径(MPPS)法和钠焰法,理论计算和分析了3种等级高效过滤材料的过滤效率及其阻力。研究结果表明:相对于空气介质,在同样滤速下,氦气介质中滤料的阻力降低,过滤效率大幅度提高;在同样滤速或颗粒直径下,随着温度升高,滤料阻力增大,过滤效率提高。
In the air and helium gas,based on MPPS and Sodium flame methods,this paper calculates the filtration efficiency and resistance of three levels of HEPA filter media.The results show that comparing with the air,in helium gas,filter media have lower resistance and higher efficiency,and secondly,at the same fil-tration rate and particle diameter,with the rise of environment temperature,the filter media have higher resis-tance and efficiency.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2011年第6期42-46,共5页
Nuclear Power Engineering
基金
国家自然科学基金(50608044
50978154)
