Record Display for the EPA National Library Catalog

RECORD NUMBER: 10 OF 13

Main Title Investigation of analyzer problems in the measurement of NOx from methanol vehicles /
Author Gabele, Peter A. ; Gabele, P. A.
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Atmospheric Sciences Research Laboratory,
Year Published 1988
Report Number PB89-124374; EPA/600/3-88/040
Stock Number PB89-124374
OCLC Number 759512851
Subjects Methanol as fuel ; Nitric oxide--Measurement
Additional Subjects Air pollution control ; Motor vehicle engines ; Methylalcohol ; Nitrogen oxides ; Exhaust gases ; Chemical analysis ; Automotive fuels ; Formaldehyde ; Combustion products ; Analyzers ; Errors ; Accuracy ; Monitoring ;
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9100Y517.PDF
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
ELCD  EPA 600-3-88-040 NVFEL Library/Ann Arbor, MI 11/07/2011
NTIS  PB89-124374 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation iv, 16 p. ; 28 cm.
Abstract
The study investigated the extent and source of irregularities related to the measurement of NOx emissions from methanol cars. Corrective measures also were explored. It was observed that NOx chemiluminescent analyzers respond to methanol and formaldehyde after being exposed to high concentrations of methanol and formaldehyde over extended periods. This response can cause significant errors in the measurement of NOx from methanol cars which have inherently elevated concentrations of exhaust methanol and formaldehyde. The most effective way of eliminating the spurious response is to clean the analyzer's reaction chamber regularly when testing vehicles which are being operated on methanol fuels.
Notes
Includes bibliographical references (p. 11-12). "November 1988." "PB89-124374"--Cover. "EPA/600/3-88/040"--T.p.
Contents Notes
This study was conducted to investigate the extent and source of irregularities related to the measurement of NOx emissions for methanol cars. Corrective measures were also explored. It was observed that NOx chemiluminescent analyzers respond to methanol and formaldehyde after being exposed to high concentrations of methanol and formaldehyde over extended periods. This response can cause significant errors in the measurement of NOx from methanol cars which have inherently elevated concentrations of exhaust methanol and formaldehyde. The most effective way of eliminating the spurious response is to clean the analyzer's reaction chamber regularly when testing vehicles which are being operated on methanol fuels.