Record Display for the EPA National Library Catalog


Main Title Wind tunnel evaluation of particle sizing instruments /
Author Gooding, Charles H.
CORP Author Research Triangle Inst., Research Triangle Park, N.C.;Industrial Environmental Research Lab., Research Triangle Park, N.C.
Publisher Research Triangle Institute,
Year Published 1976
Report Number EPA/600/2-76/073; EPA-68-02-1398; EPA-ROAP-21ADL-18B
Stock Number PB-251 172
Additional Subjects Air pollution ; Particle size ; Size determination ; Measuring instruments ; Performance evaluation ; Coal ; Electric power plants ; Flue dust ; Fly ash ; Impactors ; Wind tunnels ; Cyclone separators ; Piezoelectricity ; Optical equipment ; Beta particles ; Test equipment ; Aerosols ; Lasers ; Monitors ; Comparison ; PILLS detection ; Air pollution sampling
Library Call Number Additional Info Location Last
NTIS  PB-251 172 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vii, 64 pages : illustrations.
The report gives results of an experimental study, undertaken to evaluate and compare several particle sizing instruments. Fly ash from a coal-fired power plant was redispersed and fed into a wind tunnel at concentrations corresponding roughly to clean and dirty stack conditions. Data were obtained with two standard cascade impactors (using gravimetric mass determination), a set of series cyclones, a cascade impactor with piezoelectric crystal sensors, a cascade impactor using beta attenuation to determine collected mass, and an optical single-particle counter using a laser light source. No simple correlation could be established between the results of the optical instrument and those of the inertial classification devices, due to the probable nonuniformity of particle shape and density.
Issued also as Environmental protection technology series ; EPA-600/2-76-073. Program element no. 1AB012 ; ROAP 21ADL-18B. Contract 68-02-1398, Task 23. Includes bibliographical references (page 64). Microfiche.