Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effects of nozzle design and sampling techniques on aerosol measurements /
Author Smith, F. H.
CORP Author ARO, Inc., Arnold Air Force Station, Tenn.;National Environmental Research Center, Research Triangle Park, N.C. Chemistry and Physics Lab.
Publisher U.S. Environmental Protection Agency, Chemistry and Physics Laboratory,
Year Published 1974
Report Number PB-243 588; EPA-ROAP-26AAM; EPA-650/2-74-070
Stock Number PB-243 588
OCLC Number 53209658
Subjects Aerosols--Measurement. ; Air--Pollution--Measurement.
Additional Subjects Aerosols ; Gas sampling ; Designn ; Nozzles ; Samplers ; Probes ; Velocity ; Gas flow ; Performance evaluation ; Tests ; Lasers ; Laser velocimeters ; Isokinetic probes
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 650-2-74-070 Headquarters Library/Washington,DC 07/28/2014
ELBD RPS EPA 650-2-74-070 repository copy AWBERC Library/Cincinnati,OH 08/31/2020
ERAD  EPA 650.2-74-070 Region 9 Library/San Francisco,CA 04/27/2016
NTIS  PB-243 588 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 89 pages : illustrations ; 28 cm
This investigation was concerned with the evaluation of probe performance as a function of geometry, mean gas velocity, probe angle of attack with respect to the flow, and extraction rate. The performance of the probes was compared using the sampling error determined from the flow parameters based on a zero-error assumption at isokinetic sampling conditions. Isokinetic, or equal velocity sampling, was accomplished by using a variable speed wind tunnel to obtain the flow field around the probes and then varying the probe extraction velocity by connecting the probes to a controllable vacuum source. Laser instrumentation was used in this study to confirm the uniformity of the flow in the test section prior to testing the probes. Probe nozzles with a sharp-lip, square-lip, and side opening were tested. In general, the efficiencies of the probes decreased with increasing angle of attack.
"Interagency Agreement No. EPA-IAAG-0139(D). ROAP No. 26AAM ..." EPA Project Officer: Dr. Kenneth T. Knapp. "July 1974." "EPA 650-2-74-070."