Wartsila Oyj Abp · OMXHEX:WRT1V
Wartsila Oyj Abp — Wärtsilä — Technical Presentation (2017)
21 slides from Wartsila Oyj Abp's technical presentation, 2017
Slide 1: The Most Efficient Engine in the World
THE MOST EFFICIENT ENGINE IN THE WORLD Risto Lejon, Product Management, Wärtsilä 31 Wärtsilä Marine Solutions, Business Line Engines 2017
Slide 2: What has been the drivers for this engine development
WHAT HAS BEEN THE DRIVERS FOR THIS ENGINE DEVELOPMENT ENERGY EFFICIENCY & TOTAL COST OF OWNERSHIP RELIABILITY FUEL & EMISSION OPERATIONAL REDUCTION & FLEXIBILITY LEGISLATION 2 © Wärtsilä
Slide 3: It's a V-engine, in all its combinations
IT’S A V-ENGINE, IN ALL IT’S COMBINATIONS PM Gen. as installed in lab Main parameters Diesel Dual Fuel (DF) Spark ignited Gas (SG) Bore (mm) 310 Stroke (mm) 430 Nom. Speed (rpm) 720 / 750 720 / 750 720 / 750 Max. cyl. output (kW) 590 / 610 530 / 550 580 / 600 Cyl. configurations 8V31 10V31 12V31 14V
Slide 4: Diesel, DF & SG – same bore & same stroke – exponential benefits
DIESEL, DF & SG – SAME BORE & SAME STROKE – EXPONENTIAL BENEFITS The Power-Pack • “PowerPack” = cylinder head, liner, piston, exhaust pipe and connecting rod unit • Cross-flow cylinder head, for stiffness and low stress concentration • Same basic cylinder head for all fuels • Semi-hydraulic valve sy
Slide 5: Make the foundation solid & strong
MAKE THE FOUNDATION SOLID & STRONG Engine Structure & Power Systems Engine block • The block has been given a stiff and durable design to absorb internal forces • One piece nodular cast iron • Including water and charge air channels and camshaft bearing housings • Equipped with crankcase explosion r
Slide 6: All experience & competence gathered is built into the core
ALL EXPERIENCE & COMPETENCE GATHERED IS BUILT INTO THE CORE Crankshaft • Constant main & big end bearing temperature monitoring • Power take out from both ends Connecting rod • 3-piece design, for minimum dismantling height • New designed connecting rod for low weight and increased stiffness • Forge
Slide 7: Improved operating flexibility, performance & serviceability by adjustable valve actuation
IMPROVED OPERATING FLEXIBILITY, PERFORMANCE & SERVICE-ABILITY BY ADJUSTABLE VALVE ACTUATION Exhaust • Fully adjustable semi-hydraulic valve valve with actuation variable closing • Variable inlet valve closing enables right air-fuel ratio at any operating condition • Variable exhaust valve closing en
Slide 8: Variable valve train
VARIABLE VALVE TRAIN Stepless VIC VEC Stepless VIC - Fully adjustable inlet valve closing -> Optimized performance at all loads! VEC - Variable scavenging Validated in Valvetrain Rig - 15 000 hours Fast - Components tested in extreme conditions. solenoid valve • Valve spring validation • Additional
Slide 9: Experience creates ultimate performance & reliability
EXPERIENCE CREATES ULTIMATE PERFORMANCE & RELIABILITY Pressure, features and performance Common Rail >2000 Common bar injection21 –pressure; PumpRail LFO Optimised Twin JerkPump Common Twin Timing 2200 1800 >1500 1500 Part Pump 1500 bar load and – Twin Rail pressure barinjection bar bar injection in
Slide 10: System architecture
SYSTEM ARCHITECTURE • The current trend in fuel system development is to increase injection pressure. • The fewer high pressure joints, the less the possibilities for fuel leakages. Clean and safe layout. • A smart safety valve, the CUBE, with an additional function enabling pressure holding and con
Slide 11: Smoke emissions
SMOKE EMISSIONS COMMON RAIL 1 – Already good: Smoke as FSN with HFO • Smoke and particulate emissions of • • CR1 is better than jerk pump at low loads. Jerk pump is better than CR1 at loads the CR1 are low. • above 60%. CR2 brings a clear improvement in smoke over the whole load range. • Practically
Slide 12: Gas admission valve on Wärtsilä 31DF
GAS ADMISSION VALVE ON WÄRTSILÄ 31DF Easy & fast installation Easy to service Service pack available Coated valve plates Ensures expected life time with LNG Unchanged internal design Vast experience from W32DF/W34DF Extensive CFD simulation: Optimum gas flow to the gas admission va
Slide 13: Simplicity multiplied for outstanding performance and reliability
SIMPLICITY MULTIPLIED FOR OUTSTANDING PERFORMANCE AND RELIABILITY • 2-stage turbocharging enabler for high efficiency • Serviceability and uptime improved by cartridge concept for compressor and turbine removal and overhaul • 2nd generation two-stage turbocharging ‒ Validated on 2-stage rig and engi
Slide 14: 2-stage turbo charging system
2-STAGE TURBO CHARGING SYSTEM Fast, Accurate, Reliable; Real time valve position feedback signal standard on W31 engines. W31 engine is equipped with 2-3 control valves depending on application. 14 © Wärtsilä
Slide 15: Sound and vibration insulation
SOUND AND VIBRATION INSULATION • Proper noise insulation on engine top part to reduce engine noise emission. • Latest noise insulation reduced 10dB noise resulting sound pressure level at 1m distance from the engine top part to be ~105dB(A). 800 Hz 10 dB Sound intensity level, A-weighted, ref. 1 pW/
Slide 16: Engine automation system for the new age
ENGINE AUTOMATION SYSTEM FOR THE NEW AGE 16 © Wärtsilä I N TE R N A L [CIMAC 2016_91 / Tomi Vuollet] Document ID DBAE182233 Revision -.27
Slide 17: Increased data management & system capability is a reality
INCREASED DATA MANAGEMENT & SYSTEM CAPABILITY IS A REALITY Air/fuel ratio control Thermal management Fuel & Gas injection control Self tuning Speed / load control Knock control Engine balancing High performance Load sharing engines require high Valve control performance controls Ignition control Pro
Slide 18: Accumulated upfront experience for highest reliability downstreams
ACCUMULATED UPFRONT EXPERIENCE FOR HIGHEST RELIABILITY DOWN STREAMS Close to 50 000 h accumulated experience gathered by 2017 end 50,000 40,000 30,000 20,000 10,000 0 2011 2012 2013 2014 2015 2016 2017 Virtual Rig Engine Validation Testing validation 18 © Wärtsilä Document ID DBAE182233 Revision -.2
Slide 19: In average >9 g/kWh fuel saving over the whole load range
IN AVERAGE >9 G/KWH FUEL SAVING OVER THE WHOLE LOAD RANGE SFOC Diesel-Electric constant speed 720 rpm g/kWh 220 Wärtsilä 31 Market best practise Brake efficiency [%]* 210 W31 ∆ 2 %-unit 200 190 180 1995 2000 2005 2010 2015 Year 170 25 50 75 100 At ambient conditions according to ISO 15550. HFO as fu
Slide 20: Sold engines
SOLD ENGINES Type: Icebreaker Type: RoPax Type: Fishing vessel Type: Fishing vessel Owner: FSUE Atomflot Owner: MolsLinien Owner: P. Hepsö Rederi Owner: - Yard: Vyborg Yard: RMC Yard: Karstensen Shipyard Yard: - 3 x W8V31 2 x W8V31 1 x W8V31 1 x W10V31 Type: Fish prosessing vessel Type: Fishing Vess
Slide 21: Marine engine award
“Over 10 years ago the seeds of development were planted Now our customers can harvest the fruits of our work.” Marine engine award 21 © Wärtsilä Document ID DBAE182233 Revision -.27