Physical Sciences and Mathematics Commons^™

Application Of A Hygroscopicity Tandem Differential Mobility Analyzer For Characterizing Pm Emissions In Exhaust Plumes From An Aircraft Engine Burning Conventional And Alternative Fuels, Max B. Trueblood, Prem Lobo, Donald E. Hagen, Steven C. Achterberg, Wenyan Liu, Philip D. Whitefield

Chemistry Faculty Research & Creative Works

In the last several decades, significant efforts have been directed toward better understanding the gaseous and particulate matter (PM) emissions from aircraft gas turbine engines. However, limited information is available on the hygroscopic properties of aircraft engine PM emissions which play an important role in the water absorption, airborne lifetime, obscuring effect, and detrimental health effects of these particles. This paper reports the description and detailed labbased performance evaluation of a robust hygroscopicity tandem differential mobility analyzer (HTDMA) in terms of hygroscopic properties such as growth factor (GF) and the hygroscopicity parameter (κ). The HTDMA system was subsequently deployed during …