| Main Title |
Five-Stage Cyclone System for in Situ Sampling. |
| Author |
Smith, Wallace B. ;
Wilson, Jr., Rufus R. ;
Harris, D. Bruce ;
|
| CORP Author |
Southern Research Inst., Birmingham, AL.;Industrial Environmental Research Lab., Research Triangle Park, NC. |
| Year Published |
1979 |
| Report Number |
EPA-68-02-2131; EPA-600/J-79-116 ; IERL-RTP-P-233 |
| Stock Number |
PB81-129520 |
| Additional Subjects |
Cyclone separators ;
Air pollution ;
Aerosols ;
Sampling ;
Particles ;
Viscosity ;
Density(Mass/volume) ;
Concentration(Composition) ;
Design criteria ;
Performance evaluation ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB81-129520 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
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.) |
| Supplementary Notes |
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 |
c1979 |
| Category Codes |
13B; 68A |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/13 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323790055 |
| Origin |
NTIS |
| Type |
CAT |
