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

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

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)271-286
Number of pages16
JournalAerosol Science and Technology
Volume22
Issue number3
DOIs
StatePublished - Jan 1 1995

Fingerprint Dive into the research topics of 'Impaction model for the aspiration efficiencies of aerosol samplers in moving air under orientation-averaged conditions'. Together they form a unique fingerprint.

  • Cite this