Impaction model for the aspiration efficiencies of aerosol samplers in moving air under orientation-averaged conditions

P. J. Tsai, J. H. Vincent, D. Mark, G. Maldonado

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

This paper applies what is already known about the aspiration efficiency of blunt aerosol samplers at large angles to the interesting case of sampling under “orientation-averaged” conditions. This is particularly relevant to practical aerosol sampling in workplaces and the atmospheric environment. The resultant semiempirical model of aspiration efficiency contains a number of coefficients which are fitted by nonlinear regression to data sets for the human head and for two rotating-head inhalable aerosol samplers (a 3 L/min sampler intended for applications in workplaces and a 70 L/min sampler intended for particle sampling in the ambient atmosphere). Agreement for all three data sets (with 88, 64, and 37 records respectively) is generally good, with an overall R 2corr of 68%. Such semiempirical models can be useful for predicting and interpreting sampler performance until practical versions of more rigorous mathematical and numerical models become available.

原文English
頁(從 - 到)271-286
頁數16
期刊Aerosol Science and Technology
22
發行號3
DOIs
出版狀態Published - 1995 一月 1

All Science Journal Classification (ASJC) codes

  • 環境化學
  • 材料科學(全部)
  • 污染

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