||Five-Stage Cyclone System for in Situ Sampling.
Smith, Wallace B. ;
Wilson, Jr., Rufus R. ;
Harris, D. Bruce ;
||Southern Research Inst., Birmingham, AL.;Industrial Environmental Research Lab., Research Triangle Park, NC.
||EPA-68-02-2131; EPA-600/J-79-116 ; IERL-RTP-P-233
Cyclone separators ;
Air pollution ;
Design criteria ;
Performance evaluation ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||The paper describes the development and calibration of a five-stage cyclone system for in situ sampling of process streams. Cyclones may be used to advantage for collecting large samples and in sampling aerosols of high particulate concentration. At 25C, 28.3 L/min, and for a particle density of 1,0 g/cu cm, the D50 cut points of the cyclone system were 5.4, 2.1, 1.4, 0.65, and 0.32 micrometers for cyclones I-V, respectively. Results from calibrating the cyclones at several flow rates, temperatures, and particle densities suggest that the D50 cut points are: (1) proportional to the flow rate of the gas raised to an exponent between -0.63 and -1.11, (2) linearly proportional to the viscosity of the gas, and (3) proportional to the reciprocal of the square root of the particle density. (Copyright (c) 1979 American Chemical Society.)
||Pub. in Environmental Science and Technology, v13 n11 p1387-1392 Nov 79.
|NTIS Title Notes
||Journal article Apr 76-Jun 77.
|PUB Date Free Form
||PC A02/MF A01