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Nima Rezaei Sheshdeh

on 8 September 2012

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Transcript of Engine

Engine: SI vs. CI Nima Rezaei September 2012 http://www.mansory.com/en/node/109 http://www.mansory.com/en Content Introduction
SI Engine
CI Engine
SI Engine or CI Engine?
How to Measure Emission?
References Introduction Engine Fuel Heat Motion Burn Convert 1. External Combustion 2. Internal Combustion Steam engine Car engine http://static.ddmcdn.com/gif/steam-engine-loco.jpg http://www.mansory.com/en/renovatio-exterior-design SI Engine Spark Ignition http://www.mansory.com/en/linea-doro-exterior-design S I Fuel: Gasolin (petrol), Bioethanol
CNG Compressed Natural Gas How SI Engines work?!! How SI Engines Work Air
Fuel Injection
Exhaust http://4.bp.blogspot.com/_fX9doSZqagk/SxO2yujIxrI/AAAAAAAABdg/snFko87NRTw/s1600/6-4-Main-components-ignition-reciprocating.jpg Engine Categories: SI Engine or CI Engine? CI Engine http://www.wallcoo.net/car/Trucks/images/Western_Star_heavy_duty_trucks.jpg C I Compression Ignition Fuel: Diesel &
Biodiesel How CI Engines
Work? How CI Engines work http://www.hk-phy.org/energy/transport/vehicle_phy/images/diesel_ engine.gif Air
Exhaust SI (Gasoline) Engine CI (Diesel) Engine Lower power density
Heavy and bigger
High Cost (twice of the same power gasoline engine)
High NOX and particulates
Poor cold start
Higher fuel economy
(20%-30%) High power density
Light and compact
Lower cost

Lower end pipe emission
Good cold start
Lower fuel economy Genius is one percent inspiration, ninety-nine percent perspiration. ( Thomas Edison ) Thank you for your attention ! Any questions are welcome … References: http://www.mansory.com/en
http://www.hk-phy.org/energy/transport/vehicle_phy/images/diesel_ engine.gif
University of Birmingham, Mechanical Engineering, Future fuel laboratory
http://www.mansory.com/en/le-mansory-gt-highperformance http://www.youtube.com/watch?v=YzIIoP2dz8E&feature=related How to measure emission? Gas Chromatography-Mass Spectrometry http://www.chemistry.nmsu.edu/Instrumentation/Agilent5973GC_MS.jpg GC-MS ©University of Birmingham, Future Engine and fuel laboratory Exhaust Gas GC-MS Data analyzing Existing Atoms Emissions Conclusion Engine Fuel Movement
Engine: Eternal combustion, Internal Combustion
SI (Spark Ignition) Ignited by spark
CI (Compression Ignition) Ignited by compressing
SI engine advantages over CI engine:
1. High power density
2. Light and compact
3. Lower cost
4. Lower end pipe emission
5. Good cold start
CI Engine advantage over SI Engine:
1.Higher fuel economy (20% - 30%)
Emission could be measured by GC-MS
Exhaust gas GC-MS Emission Analyze result http://www.mansory.com/en/le-mansory-gt-highperformance
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