GSTDTAP  > 气候变化
DOI10.1002/2017JD027111
Evaporation Kinetics of Polyol Droplets: Determination of Evaporation Coefficients and Diffusion Constants
Su, Yong-Yang1; Marsh, Aleksandra2; Haddrell, Allen E.2; Li, Zhi-Ming1; Reid, Jonathan P.2
2017-11-27
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2017
卷号122期号:22
文章类型Article
语种英语
国家Peoples R China; England
英文摘要

In order to quantify the kinetics of mass transfer between the gas and condensed phases in aerosol, physicochemical properties of the gas and condensed phases and kinetic parameters (mass/thermal accommodation coefficients) are crucial for estimating mass fluxes over a wide size range from the free molecule to continuum regimes. In this study, we report measurements of the evaporation kinetics of droplets of 1-butanol, ethylene glycol (EG), diethylene glycol (DEG), and glycerol under well-controlled conditions (gas flow rates and temperature) using the previously developed cylindrical electrode electrodynamic balance technique. Measurements are compared with a model that captures the heat and mass transfer occurring at the evaporating droplet surface. The aim of these measurements is to clarify the discrepancy in the reported values of mass accommodation coefficient ((M), equals to evaporation coefficient based on microscopic reversibility) for 1-butanol, EG, and DEG and improve the accuracy of the value of the diffusion coefficient for glycerol in gaseous nitrogen. The uncertainties in the thermophysical and experimental parameters are carefully assessed, the literature values of the vapor pressures of these components are evaluated, and the plausible ranges of the evaporation coefficients for 1-butanol, EG, and DEG as well as uncertainty in diffusion coefficient for glycerol are reported. Results show that (M) should be greater than 0.4, 0.2, and 0.4 for EG, DEG, and 1-butanol, respectively. The refined values are helpful for accurate prediction of the evaporation/condensation rates.


英文关键词evaporation kinetics polyol droplets electrodynamic balance (EDB) evaporation coefficients diffusion constants
领域气候变化
收录类别SCI-E
WOS记录号WOS:000418084500006
WOS关键词CONDENSATION NUCLEUS COUNTER ; MASS ACCOMMODATION COEFFICIENT ; GAS-PHASE DIFFUSION ; VAPOR-PRESSURE DATA ; PARTICLE COUNTERS ; ORGANIC-COMPOUNDS ; TRACE GASES ; WATER ; AEROSOL ; GROWTH
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/32717
专题气候变化
作者单位1.Northwest Inst Nucl Technol, Xian, Shaanxi, Peoples R China;
2.Univ Bristol, Sch Chem, Bristol, Avon, England
推荐引用方式
GB/T 7714
Su, Yong-Yang,Marsh, Aleksandra,Haddrell, Allen E.,et al. Evaporation Kinetics of Polyol Droplets: Determination of Evaporation Coefficients and Diffusion Constants[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(22).
APA Su, Yong-Yang,Marsh, Aleksandra,Haddrell, Allen E.,Li, Zhi-Ming,&Reid, Jonathan P..(2017).Evaporation Kinetics of Polyol Droplets: Determination of Evaporation Coefficients and Diffusion Constants.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(22).
MLA Su, Yong-Yang,et al."Evaporation Kinetics of Polyol Droplets: Determination of Evaporation Coefficients and Diffusion Constants".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.22(2017).
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