Record Display for the EPA National Library Catalog
RECORD NUMBER: 23 OF 45Main Title | Investigation of analyzer problems in the measurement of NOx from methanol vehicles / | ||||||||||||||||
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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 ; | ||||||||||||||||
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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. |
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Notes | Includes bibliographical references (p. 11-12). "November 1988." "PB89-124374"--Cover. "EPA/600/3-88/040"--T.p. |
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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. |