Record Display for the EPA National Library Catalog

RECORD NUMBER: 431 OF 1867

OLS Field Name OLS Field Data
Main Title Design, Construction, and Testing of a Commercial Prototype Disc Diluter.
Author Hedley, W. H. ; DuFour, H. R. ; Feairheller, W. R. ; Harris, D. L. ; Peltier., T. L. ;
CORP Author Monsanto Research Corp., Dayton, Ohio. Dayton Lab.;National Environmental Research Center, Research Triangle Park, N.C. Chemistry and Physics Lab.
Year Published 1974
Report Number EPA-68-02-0716; EPA-ROAP-26APP; EPA/650/2-74/055;
Stock Number PB-244 117
Additional Subjects Gas sampling ; Flue gases ; Air pollution ; Samplers ; Dilution ; Disks(Shapes) ; Design ; Tests ; Prototypes ; Sulfur dioxide ; Nitrogen oxides ; Laboratory tests ; Field tests ; Electric power plants ; Steam electric power generation ; Air pollution sampling
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-244 117 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 81p
Abstract
EPA is investigating interface systems for stack gas conditioning so that various pollutant gas monitors can be adapted to source monitoring. One of these systems is the disc diluter. The system dilutes high concentration stack gases and conducts them to a point outside the stack where ambient air monitors can by used to measure the concentration. The prototype was designed to (1) provide the necessary dilution to be compatible with ambient air sampling devices for SO2 and NOx, (2) reduce the particulate and water vapor level to values that will not interfere with the ambient air sampling devices, and (3) be simple to operate and reliable for long-term sampling programs. The prototype disc diluter was constructed and laboratory tested to determine its operating parameters. Following minor modifications, the prototype was field tested at a coal-fired electric generating plant and on a gas-fired steam generator.