The Preliminary Study of Aerosol Leakage at Low Gas Leakage Situation
The radioactive aerosol leakage is one of the key issues of radiation protection for nuclear research and industry. The aerosol leaking behaviours of cracks with low gas leakage rate were investigated in this paper. The theory method of evaluating air and aerosol leakage rate was summarized. The effects of cross section shape of cracks, air velocity on the aerosol penetration were studied by theoretical analysis and experimental studies. Its shown that aerosol penetration of a capillary is usually more than that of a slot while both have the same gas leakage rate. The aerosol penetration decreased with the reduction of air flow velocity. For practical application the aerosol leakage rate could be expressed as a function involving the air leakage rate and the length of cracks when diffusion deposition is overwhelming, and key parameters were recommended to estimate the aerosol leakage rate through a crack.
Aerosol Leakage Capillary Low Air Leakage
Zhihong Zhang Haijun Dang Longbo Liu
Northwest Institute of Nuclear Technology,Xian,Shaanxi 710024,China
国际会议
西安
英文
1157-1160
2011-08-17（万方平台首次上网日期，不代表论文的发表时间）