Characterization of Temperature Profiles in a Thermodenuder

Claudia Jing-Yu Chen

Abstract

Thermodenuder (TD) systems are commonly used in aerosol research to induce particle evaporation and simulate evaporation that results from dilution and mixing in the atmosphere.  TD experiments in both laboratory studies and field campaigns are commonly used to infer the volatility of organic aerosols.  The TD developed in this experiment is slightly modified from that of the standard Huffman et al.  (2008), and it is characterized here in terms of the internal temperature profile.  This altered TD design still produces the three regions of warming, heated, and cooling in a longitudinal temperature profile comparable to those from previous designs.  Data from TD experiments are necessary in order to provide accurate interpretations of laboratory and field aerosol volatility measurements.    

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