||'In-Stack' Diffusion Classifier for Aerosol Mass Distribution Measurement.
Lundgren, Dale A. ;
Rangaraj, Cumbum N. ;
||Florida Univ., Gainesville. Dept. of Environmental Engineering Sciences.;Air Force Engineering and Services Center, Tyndall AFB, FL. Engineering and Services Lab.
||EPA-R-805762-010; 2103; 2A; AFESC/ESL-TR-81-04;
Test equipment ;
Air pollution ;
Smoke stacks ;
Industrial plants ;
Field tests ;
Particle size ;
In stack diffusion classifiers ;
Mass distribution ;
Submicron aerosols ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
A five-stage, screen-type diffusion classifier was designed and built to make in-situ measurement of submicron aerosols at temperatures and pressures encountered in industrial-type exhaust stacks. Laboratory calibration proceeded satisfactorily and held strong promise of successful field demonstration. However, major problems were encountered in test procedures during both field tests (at the Jacksonville Florida Electric Authority (J.E.A.)) Southside generating Station, Unit 4 (oil-fired boiler) and the Naval Air Rework Facility, Jacksonville, Jet Engine test Cell 11 (J-52 engines). Conditioning of the glass fiber filters to sulfur oxides was not done at the Southside Power Plant - this appears to have been the major problem there. Temperatures of the exhaust stack exceeded 200 C at the Jet Engine Test Cell - consequent weight loss due to grease vaporization appears to have been the problem there. (Author)