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RECORD NUMBER: 13 OF 111

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Main Title An investigation of photoacoustic spectroscopy as a technique for measuring diesel particulate emissions /
Author Heiser, Daniel P.
CORP Author Environmental Protection Agency, Ann Arbor, MI. Standards Development and Support Branch.
Publisher U.S. Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Standards Development and Support Branch,
Year Published 1980
Report Number EPA-AA-SDSB-80-19
Stock Number PB81-232951
OCLC Number 723175298
Subjects Automobiles--Motors--Exhaust gas.; Air quality--Standards--United States.; Motor vehicles--Motors--Exhaust gas.; Air--Pollution--Research.; Trucks--Motors (Diesel); Diesel motor exhaust gas.; Trucks--Motors--Exhaust gas.
Additional Subjects Particles; Air pollution; Feasibility; Exhaust emissions; Air pollution detection; Photoacoustic spectroscopy; Diesel engine exhaust; Light duty vehicles; Heavy duty vehicles
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=9100X03C.txt
Holdings
Library   Call Number Additional Info Location Last
Modified
Checkout
Status
ELCD EPA AA-SDSB-80-19 NVFEL Library/Ann Arbor, MI 05/16/2011
NTIS PB81-232951 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 [8] p. ; 28 cm.
Abstract
EPA is in the process of proposing a particulate emission standard for heavy duty diesel vehicles. With this mandated requirement to regulate particulate emissions, EPA must propose a test procedure for the measurement of particulate emissions from diesel engines. A draft recommended practice for measuring particulate emissions from heavy duty diesel engines has already been developed and described in a previous report. In the draft recommended practice, the necessary additions and changes to the current Federal Test Procedure (FTP) were discussed and generally involved (1) the use of a dilution tunnel coupled with a constant mass sampler and (2) the use of filter media to collect the particulate matter over both the cold and hot start portions of the test. The latter of these two requirements (i.e., filter measurements) is of special interest here. The technique of photoacoustic spectroscopy may be an attractive alternative to filter measurements in that it would bring about instantaneous measurement and a short data processing time. This report will investigate present applications of photoacoustic spectroscopy, and discuss the feasibility of this technique as an alternative to filter measurements for certification testing of light-duty disesel vehicles and heavy duty diesel engines.
Notes
Technical report. Cover title. "EPA-AA-SDSB-80-19." "September, 1980." Includes bibliographical references (p. [7-8]).
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