A Microorifice Uniform Deposit Impactor (MOUDI): Description, Calibration, and Use
نویسندگان
چکیده
منابع مشابه
The micro-orifice uniform deposit impactor–droplet freezing technique (MOUDI-DFT) for measuring concentrations of ice nucleating particles as a function of size: improvements and initial validation
The micro-orifice uniform deposit impactor– droplet freezing technique (MOUDI-DFT) combines particle collection by inertial impaction (via the MOUDI) and a microscope-based immersion freezing apparatus (the DFT) to measure atmospheric concentrations of ice nucleating particles (INPs) as a function of size and temperature. In the first part of this study we improved upon this recently introduced...
متن کاملMOUDI analysis of particle size distributions for ultrasonic spraying of salt solutions from an array of microscopic orifices
We report characterization of spray-based nanoporous particle synthesis for use in the cathode of lithiumion batteries. Ultrasonic Microarray Spray Tuning (uMIST) was used to create microdroplets of salt solutions and battery material precursors, and the size distributions of produced microdroplets were investigated with a MicroOrifice Uniform Deposit Impactor (MOUDI). Experimental challenges a...
متن کاملCalibration Studies of the Drum Impactor*
A b s t r a e t ~ l i b r a t i o n studies were performed on the Davis Rotating-drum Universal-size-cut Monitoring (DRUM) sampler utilizing fluorescent monodisperse aerosols of polystyrene latex. The DRUM sampler is an eight-stage Lundgren-type rotating drum cascade impactor utilizing a series of single round jets for each stage including low-pressure stages. The DRUM sampler operates continuo...
متن کاملThe Andersen Impactor: Calibration, Wall Losses and Numerical Simulation
-Andersen cascade impactors are widely used to assess airborne particle size distributions. Two forms (MkI and MklI) have been calibrated using solid and liquid aerosols, measured by microscopy, fluorimetry, and aerodynamic particle sizer. A fluorescent tracer was used to examine qualitatively the details of the wall loss deposition patterns when using greased and ungreased plates, and to quant...
متن کاملAerosol Source Sampling in a Mid-Scale City, Gainesville, FL
Five major sources for the ambient aerosol in Gainesville, FL were sampled by using a MicroOrifice Uniform Deposit Impactor (MOUDI) and a University of Washington Mark III Cascade Impactor. The samples were analyzed for carbons and ions. Soil dust, unpaved road dust, cement dust particles and marine aerosols were mainly in the coarse mode, while particles from transportation showed a bi-modal o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Aerosol Science and Technology
سال: 1991
ISSN: 0278-6826,1521-7388
DOI: 10.1080/02786829108959504