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- Diesel_exhaust abstract "Distinguish from Diesel exhaust fluid (DEF), which is an aqueous urea solution made of 32.5% high purity urea and 67.5% deionized water, used in selective catalytic reduction (SCR) to reduce NOx concentration in exhaust emissions of diesel engines.Diesel exhaust (sometimes known in Britain as clag when emitted by diesel locomotives, or diesel engine emissions in scientific papers) is the exhaust gas of a diesel engine.(The word "clag" originally meant the coal-smoky exhaust of steam locomotives, and nowadays means black exhaust emissions of many older British diesel locomotives.)Inside diesel engines, conditions differ from spark-ignition engine, since power is directly controlled by the fuel supply, not by controlling the air supply as in conventional gasoline engines. When the engine runs at idle, enough oxygen is present to burn the fuel. Diesel engines only make significant amounts of smoke when running without enough oxygen. This is usually mitigated in a turbocharged diesel engine.Diesel exhaust is known for its characteristic smell, but this has largely disappeared in recent years following reductions in sulfur content.Diesel exhaust contains toxic air contaminants. It is listed as a carcinogen for humans by the IARC in group 1. Diesel fuel also contains fine particles associated with negative health effects. Diesel exhaust pollution was thought to account for around one quarter of the pollution in the air in previous decades, and a high share of sickness caused by automotive pollution. Diesel engine exhaust has become far cleaner since 2000. The lean-burning nature of diesel engines and the high temperatures and pressures of the combustion process result in significant production of nitrogen oxides, and provides a unique challenge in reducing of these compounds. Modern on-road diesel engines typically must use selective catalytic reduction to meet emissions laws, as other methods such as exhaust gas recirculation cannot adequately reduce NOx to meet newer standards in many jurisdictions. However, the fine particulate matter (sometimes visible as opaque dark-colored smoke) have traditionally been of greater concern in the realm of diesel exhaust, as they present different health concerns and are rarely produced in significant quantities by spark-ignition engines.Diesel engines produce very little carbon monoxide as they burn the fuel in excess air even at full load, at which point the quantity of fuel injected per cycle is still about 50 percent lean of stoichiometric.".
- Diesel_exhaust thumbnail Three-loco-styles.jpg?width=300.
- Diesel_exhaust wikiPageExternalLink 702.
- Diesel_exhaust wikiPageExternalLink DieselExhaustParticulates.pdf.
- Diesel_exhaust wikiPageExternalLink topics.php?topic=14.
- Diesel_exhaust wikiPageExternalLink topicpage2.htm.
- Diesel_exhaust wikiPageExternalLink Diesel-Particulate-Case-Study.cfm.
- Diesel_exhaust wikiPageExternalLink getfile.cfm&PageID=2631.
- Diesel_exhaust wikiPageExternalLink www.dieselretrofit.eu.
- Diesel_exhaust wikiPageExternalLink schoolbus.
- Diesel_exhaust wikiPageExternalLink Traffic.
- Diesel_exhaust wikiPageExternalLink www.kcl.ac.uk.
- Diesel_exhaust wikiPageExternalLink diesel_english.pdf.
- Diesel_exhaust wikiPageExternalLink 57585.pdf.
- Diesel_exhaust wikiPageExternalLink dieselexhaust.
- Diesel_exhaust wikiPageExternalLink chemical.html.
- Diesel_exhaust wikiPageExternalLink 2352.pdf.
- Diesel_exhaust wikiPageExternalLink 2353.pdf.
- Diesel_exhaust wikiPageID "1202358".
- Diesel_exhaust wikiPageRevisionID "605991444".
- Diesel_exhaust hasPhotoCollection Diesel_exhaust.
- Diesel_exhaust subject Category:Air_pollution.
- Diesel_exhaust subject Category:Diesel_engines.
- Diesel_exhaust type Artifact100021939.
- Diesel_exhaust type Device103183080.
- Diesel_exhaust type Diesel103193107.
- Diesel_exhaust type DieselEngines.
- Diesel_exhaust type Engine103287733.
- Diesel_exhaust type HeatEngine103507963.
- Diesel_exhaust type Instrumentality103575240.
- Diesel_exhaust type Internal-combustionEngine103579982.
- Diesel_exhaust type Machine103699975.
- Diesel_exhaust type Motor103789946.
- Diesel_exhaust type Object100002684.
- Diesel_exhaust type PhysicalEntity100001930.
- Diesel_exhaust type Whole100003553.
- Diesel_exhaust comment "Distinguish from Diesel exhaust fluid (DEF), which is an aqueous urea solution made of 32.5% high purity urea and 67.5% deionized water, used in selective catalytic reduction (SCR) to reduce NOx concentration in exhaust emissions of diesel engines.Diesel exhaust (sometimes known in Britain as clag when emitted by diesel locomotives, or diesel engine emissions in scientific papers) is the exhaust gas of a diesel engine.(The word "clag" originally meant the coal-smoky exhaust of steam locomotives, and nowadays means black exhaust emissions of many older British diesel locomotives.)Inside diesel engines, conditions differ from spark-ignition engine, since power is directly controlled by the fuel supply, not by controlling the air supply as in conventional gasoline engines. ".
- Diesel_exhaust label "Diesel exhaust".
- Diesel_exhaust label "Dieselruß".
- Diesel_exhaust label "Emissioni Diesel".
- Diesel_exhaust label "ディーゼル排気微粒子".
- Diesel_exhaust sameAs Dieselruß.
- Diesel_exhaust sameAs Emissioni_Diesel.
- Diesel_exhaust sameAs ディーゼル排気微粒子.
- Diesel_exhaust sameAs m.0ccs0v.
- Diesel_exhaust sameAs Q336041.
- Diesel_exhaust sameAs Q336041.
- Diesel_exhaust sameAs Diesel_exhaust.
- Diesel_exhaust wasDerivedFrom Diesel_exhaust?oldid=605991444.
- Diesel_exhaust depiction Three-loco-styles.jpg.
- Diesel_exhaust isPrimaryTopicOf Diesel_exhaust.
