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12-1 © Wärtsilä 27 September 2007 W50DF11V00BTM01A Rev. 01
WÄRTSILÄ W50DFSTANDARD ENGINE
12. PROPERTIES & CONCLUSIONS
2 © Wärtsilä 27 September 2007 W50DF11V00BTM01A Rev. 01
PROPERTIES & CONCLUSIONS
CompactnessMost powerful four-stroke dual-fuel engineSimple and robust designControlled by an advancedautomation system
High efficiencyHigh output with fuel flexibilityLow emission ratesProvides the same output withnatural gas or on LFO/HFO
Easy maintenanceLong component lifetime and timebetween overhaulsHydraulic jack for easy manoeuvringof the bearing capLarge scale of common componentswith Wärtsilä 32DF and Wärtsilä 46
Built-in experienceBasic design from Wärtsilä 46 engineAnti-polishing ring conseptProven lean-burn technology withconventional diesel fuel technology
High flexibilityA pilot fuel ignited lean-burn gasengineInstant switch-over capability toback-up fuelMonoblock injection pump andengine-driven pilot fuel pump
3 © Wärtsilä 27 September 2007 W50DF11V00BTM01A Rev. 01
MAINTENANCE
A large opening into the crankcase and camshaftto facilitate checking and maintenanceThe three-piece connecting rod allows inspectionof the big end bearing without removal of thepiston, and piston overhaul without dismantlingthe big end bearingThe camshaft is built of identical cylindersegments fastened to intermediate bearing piecesThe pilot fuel pump is located in the free end of the engineEasy access to the piping systems is obtained by removing the insulating panelsElectrically controlled gas admission valves reduce the need for mechanical partsand periodic adjustmentsA resiliently mounted insulating box provides easy access to the exhaust system
4 © Wärtsilä 27 September 2007 W50DF11V00BTM01A Rev. 01
CONDITION-BASED MAINTENANCE
Available as standard support for Wärtsilä 50DFMonthly report from Wärtsilä on status of engine condition andrecommendations for corrective actions resulting in:
Optimized life-cycle efficiencyMinimized environmental impactOptimized operating economy
5 © Wärtsilä 27 September 2007 W50DF11V00BTM01A Rev. 01
GLOBAL SERVICE SUPPORT
CommissioningOperation, maintenance, technicaland CBM supportTrainingPartsField serviceWorkshop and ship repairservicesReconditioning, upgradesand modernization servicesO&M agreementsOnline servicesWärtsilä Service product areas
6 © Wärtsilä 27 September 2007 W50DF11V00BTM01A Rev. 01
W50DF MARINE INSTALLATION TARGETS
DF-electric LNG (liquefied natural gas)carriersMain configurations
6L50DF9L50DF12V50DF
No extra auxiliary engines are neededsince the generating sets are coveringthe vessels total electrical need
Propulsion motorsThrustersThe remaining hotel load
7 © Wärtsilä 27 September 2007 W50DF11V00BTM01A Rev. 01
W50DF POWER PLANT INSTALLATION TARGETS
W50DF Gas Power PlantsMain configurations
6L50DF12V50DF18V50DF
Full plant output in Hot, High and DryconditionsNo need for high pressure gas, ~5 baradequateNormal start up time ~10 min from hotstand-by to full plant load.
