Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Compact sampling system for collection of particulates from stationary sources /
Author Ringwall, Carl G.
CORP Author General Electric Co., Schenectady, N.Y.;National Environmental Research Center, Research Triangle Park, N.C. Chemistry and Physics Lab.
Publisher U.S. Environmental Protection Agency,
Year Published 1974
Report Number EPA/650-2-74-029; EPA-68-02-0546
Stock Number PB-240 398
OCLC Number 09624487
Subjects Air quality management. ; Air--Pollution. ; Flue gases.
Additional Subjects Gas sampling ; Nozzles ; Particles ; Flow control ; Performance evaluation ; Flow rate ; Stack gases ; Fluidic control devices ; Fabrication ; Gas flow ; Air pollution ; Isokinetic probes
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 650-2-74-029 Headquarters Library/Washington,DC 09/30/2013
ELBD RPS EPA 650-2-74-029 repository copy AWBERC Library/Cincinnati,OH 07/31/2017
NTIS  PB-240 398 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 1 volume (various pagings) : graphs, illustrations ; 28 cm
This report summarizes the work performed on a program to design, fabricate, and evaluate a controller for automatically sensing and maintaining isokinetic conditions at the inlet of a particulate sampling nozzle. The key components developed on the program were the gas velocity sensor and a fluidic control amplifier. The sensor concept is based on a static pressure differential between the free air stream and the nozzle inlet. The fluidic control amplifier which interfaces directly with the sensor provides the control to automatically maintain isokinetic conditions. Field tests were performed on the engineering prototype system at both oil-fired and coal-fired power plant installations. Results of these tests showed that the sensor and controller can function with no degradation in performance under the adverse environment of representative power plant stacks.
"EPA/650-2-74-029." "April 1974."