Record Display for the EPA National Library Catalog


Main Title Environmental Assessment of NOx Control on a Compression Ignition Large Bore Reciprocating Internal Combustion Engine. Volume 1. Technical Results.
Author Castaldini, C. ;
CORP Author Acurex Corp., Mountain View, CA. Energy and Environmental Div.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Year Published 1986
Report Number ACUREX/TR-81-81/EE; EPA-68-02-3188; EPA/600/7-86/001A;
Stock Number PB86-155819
Additional Subjects Air pollution control ; Exhaust emissions ; Diesel engines ; Nitrogen oxides ; Spark ignition engines ; Internal combustion engines ; Tables(Data) ; Concentration(Composition) ; Field tests ; Assessments ; Air fuel ratio ; Carbon monoxide ; Exhaust gases ; Trace elements ; Bioassays ; Organic compounds ; Performance evaluation ; Combustion modification ; Baseline measurements
Library Call Number Additional Info Location Last
NTIS  PB86-155819 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 113p
Volume I of the report gives emission results from field tests of the exhaust gas from a large-bore, compression-ignition reciprocating engine burning diesel fuel. An objective of the tests was to evaluate the operating efficiency of the engine with combustion modification NOx control to reduce emissions to below the proposed NOx new source performance standard (NSPS) of 600 ppm at 15 percent O2 dry. Engine NOx emissions were reduced 31 percent (from 825 to 571 ppm) at 15 percent O2 with 3.5 degrees of fuel injection timing retard. The reduction was accompanied by a 1 percent loss in engine efficiency. CO emissions decreased slightly (from 119 to 90 ppm). Total unburned hydrocarbons remained relatively unchanged (25 ppm), as did particulate emissions (35 ng/J) and total organic emissions (55 ng/J). Volatile organics (boiling point less than about 100 C) accounted for the largest fraction of the total organic. Naphthalene, fluoroanthene, phenanthrene/anthracene, and pyrene were the only organic priority pollutants detected in both tests at levels below 70 micrograms/dscm.