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Main Title Continuous measurement of gas composition from stationary sources /
Author Brooks, E. F. ; Flegal, C. A. ; Harnett, L. N. ; Kolpin, M. A. ; Luciani., D. J.
CORP Author TRW Systems Group, Redondo Beach, Calif.;Environmental Protection Agency, Washington, D.C. Office of Research and Development.
Publisher U.S. Environmental Protection Agency,
Year Published 1975
Report Number EPA 600-2-75-012; EPA 68-02-0636; EPA ROAP-21ACX
Stock Number PB-245 024
OCLC Number 09518479
Subjects Air--Pollution ; Flue gases--Measurement
Additional Subjects Air pollution ; Gas analysis ; Flue gases ; Gas sampling ; Monitors ; Gas flow ; Sulfur dioxide ; Nitrogen oxides ; Carbon dioxide ; Oxygen ; Stratification ; Computer programs ; Continuous sampling ; Air pollution sampling
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-75-012 Headquarters Library/Washington,DC 03/26/2014
EJBD  EPA 600-2-75-012 Headquarters Library/Washington,DC 01/02/2020
ESAD  EPA 600-2-75-012 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-245 024 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation x, 114 pages : charts, graphs ; 27 cm
Abstract The program objective was to develop and evaluate methods for the continuous measurement of gaseous emissions from stationary sources, specifically in large or complex ducts where total flow processing techniques are not practical. This report is concerned with the measurement of mean gas concentrations in rectangular ducts. Work consisted of a review of related programs, development of a computer program to assess stratification levels and evaluate sampling techniques, formulation and evaluation of point sampling methods for continuous monitoring, development of a multi-port continuous gas sampling probe, and field demonstration of hardware and techniques. Results showed that emissions can be accurately monitored using as few as one flow sensor and one sampling probe, even in the presence of significant velocity and compositional stratification, although stratification levels were too high for single point samples to be acceptable. It was shown for all data examined that good accuracy can be attained by taking a spatial concentration average -- flow proportional sampling is not required. The field demonstration verified the acceptability of the proposed methodology.
Notes "EPA 600-2-75-012." "July 1975." Cover title. Appendices included. Bibliographical references included. PB-245 024.
Place Published Washington
PUB Date Free Form 1975
NTIS Prices PC A07/MF A01
BIB Level m
Cataloging Source OCLC/T
OCLC Time Stamp 20140321114244
Language eng
Origin OCLC
OCLC Rec Leader 00739cam 2200229Ii 45020