KTH engines 090212 ppt

KTH engines 090212 ppt - Feb 12, 2009 Thomas Stenhede 1 KTH...

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Unformatted text preview: Feb 12, 2009 Thomas Stenhede 1 KTH Engines Stockholm Feb. 12, 2009 Thomas Stenhede Master of Science Senior Application Manager Wrtsil Power Plants Internet: www.wartsila.com mobile +46/70 591 50 79 E-mail: thomas.stenhede@wartsila.com Feb 12, 2009 Thomas Stenhede 2 KTH Engines Stockholm Feb. 12, 2009 Internal Combustion Engines (ICE) Engine technology Emissions Applications Feb 12, 2009 KTH, Stockholm Feb 12, 2009 Thomas Stenhede 3 KTH Engines Stockholm Feb. 12, 2009 Wrtsil is a Finnish based public company with 18000 employees and a turn-over of 4.3 billion euro and representatives in 70 countries. Within the Power Divisions the business areas are Ship power Power Plants Services The engine brands are e.g.: Wrtsil, Vasa, Sulzer, Nohab, Sacm, Stork, GMT Feb 12, 2009 Thomas Stenhede 4 KTH Engines Stockholm Feb. 12, 2009 Wrtsil engine program: Diesel engines Four stroke 1 - 24 MW shaft Two stroke 5 - 80 MW shaft Otto engines Four stroke 4 - 18 MW shaft Feb 12, 2009 Thomas Stenhede 5 KTH Engines Stockholm Feb. 12, 2009 Engines are denoted according to bore, stroke or cylinder volume (e.g. Wrtsil 32) Power output of an IC-engine is related to: Speed (rpm), mean effective pressure (imep/bmep), cylinder volume, number of cylinders: P shaft =k * * p ind * V * N Feb 12, 2009 Thomas Stenhede 6 KTH Engines Stockholm Feb. 12, 2009 Wrtsil fuel versatility development 1970 1980 1990 2000 2010 Diesel Oil (LFO) Heavy Fuel Oil (HFO) Natural Gas (NG) Crude Oil (CRO) Liquid Biofuels (LBF) Emulsified Fuels (FWE) High Viscosity HFOs Associated Gas Feb 12, 2009 Thomas Stenhede 7 KTH Engines Stockholm Feb. 12, 2009 Fuel Conversion technology Pressing Hydrolysis - Fermentation Pyrolysis Pressing - Esterification Gasification Combustion Oil Palm Jatropha seed Willow/poplar Pine/Spruce Waste fats/oils Rape seed Wheat Maize Potato Straw Crude Vegetable Oil Bio Diesel Bio-oil Ethanol Methanol DME Bio Methane Hydrogen Diesel Engines Fuel Cell End Fuel Bio Mass Resources Digestion Municipal waste Crops Wood Residues Power Generation technology Boilers and Steam Turbine 40 - 47 % efficiency 40 % efficiency 20 - 35 % efficiency Otto Engines 30 - 45 % efficiency Biomass derived end fuels Feb 12, 2009 Thomas Stenhede 8 KTH Engines Stockholm Feb. 12, 2009 pV - diagram Theoretical working cycles 20 40 60 80 100 120 140 160 180 200 5 000 10 000 15 000 20 000 25 000 30 000 35 000 40 000 Cylinder volume [cm] Cylinder pressure [bar Diesel cycle I ndicated M ean E ffective P ressure = 20.2 bar ( B rake M ean E ffective P ressure 19.4 bar) Constant pressure combustion Cylinder pressure limiting Theoretical diesel cycle pV - diagram Theoretical working cycles 20 40 60 80 100 120 140 160 180 200 5 000 10 000 15 000 20 000 25 000 30 000 35 000 40 000 Cylinder volume [cm] Cylinder pressure [bar Otto cycle I ndicated M ean E ffective P ressure = 20.2 bar ( B rake M ean E ffective P ressure 19.4 bar) Constant volume combustion...
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KTH engines 090212 ppt - Feb 12, 2009 Thomas Stenhede 1 KTH...

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