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DOI | 10.1016/j.atmosres.2019.104816 |
Study on CCN activity of fission product aerosols (CsI and CsOH) and their effect on size and other properties | |
Mishra, Gaurav1; Tripathi, S. N.2,3; Saud, T.4; Joshi, Manish5; Khan, Arshad5; Sapra, B. K.5 | |
2020-05-15 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2020 |
卷号 | 236 |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | This paper discusses the size resolved cloud condensation nuclei (CCN) properties of two cesium bound compounds viz. CsI and CsOH. These properties are important in context of risk analysis and management of probable environmental releases during postulated nuclear reactor accident conditions. If released as fission product aerosols, these particles have potential to act as CCN, when exposed to humid environment. On activation, their evolution-deposition dynamics and consequently fate is expected to be affected in closed and/or open atmosphere. Size resolved CCN efficiency spectra (20-300 nm) are obtained for 0.2-1% supersaturation (SS) for pure CsI and CsOH particles employing a DMT-CCN counter. The essential parameters estimated from these measurements are activation diameter and size-averaged hygroscopicity (K) at targeted SS levels. Experimental results were also compared with the standard theories available in the literature. Accuracy of the deposition rates for these particles (if released) in reactor component systems estimated by nuclear reactor accident analyses codes will improve when CCN properties are also taken into account. CCN efficiency spectra and activation diameters at specific SS for CsI and CsOH particles are being reported for the first time. Information on these properties strengthen the database which is vital for simulating behavioral characteristics of these particles. This in turn has capability to improve environmental source term estimations in the most unlikely scenario of containment breach during severe reactor accident conditions. |
英文关键词 | CCN Cloud Condensation Nuclei CsI CsOH Fission product aerosols |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000525322900023 |
WOS关键词 | CLOUD CONDENSATION NUCLEI ; RESOLVED CCN ; VERTICAL DISTRIBUTIONS ; HYGROSCOPIC GROWTH ; AMMONIUM-SULFATE ; MIXING STATE ; SOURCE-TERM ; PARTICLES ; ACTIVATION ; ACCIDENT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/278887 |
专题 | 地球科学 |
作者单位 | 1.IIT Kanpur, Nucl Engn & Technol Programme, Dept Mech Engn, Kanpur 208016, Uttar Pradesh, India; 2.IIT Kanpur, Dept Civil Engn, Kanpur 208016, Uttar Pradesh, India; 3.IIT Kanpur, Ctr Environm Sci & Engn, Kanpur 208016, Uttar Pradesh, India; 4.IIT Kanpur, Natl Aerosol Facil, Kanpur 208016, Uttar Pradesh, India; 5.Bhabha Atom Res Ctr, Radiol Phys & Advisory Div, Mumbai 400085, Maharashtra, India |
推荐引用方式 GB/T 7714 | Mishra, Gaurav,Tripathi, S. N.,Saud, T.,et al. Study on CCN activity of fission product aerosols (CsI and CsOH) and their effect on size and other properties[J]. ATMOSPHERIC RESEARCH,2020,236. |
APA | Mishra, Gaurav,Tripathi, S. N.,Saud, T.,Joshi, Manish,Khan, Arshad,&Sapra, B. K..(2020).Study on CCN activity of fission product aerosols (CsI and CsOH) and their effect on size and other properties.ATMOSPHERIC RESEARCH,236. |
MLA | Mishra, Gaurav,et al."Study on CCN activity of fission product aerosols (CsI and CsOH) and their effect on size and other properties".ATMOSPHERIC RESEARCH 236(2020). |
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