Tier III programme Status and Outlook. Dominik Schneiter

Transcription

1 Tier III programme Status and Outlook Dominik Schneiter

2 Agenda 1 Regulations & Markets 2 Selective Catalytic Reduction (SCR) 3 Exhaust Gas Recirculation (EGR) 4 Conclusion 2

3 IMO/MARPOL Summary International Convention for the Prevention of Pollution from Ships SO X Acid rain 3.5% (2012) ECA 0.1% (2015) 0.5% ( ) NO X Acid rain Tier II (2011) Tier III (2016) CO 2 Greenhouse gas EEDI by IMO Regulation 14 Regulation 13 3

4 Markets Estimated Tier III engine deliveries over time 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Tier II DF Tier III References BCG 2015: 5-27% DF in 2020 IHS 2014: 60% T3 in 2021 DNV-GL 2014: 40% T3 in

5 SCR (Selective Catalytic Reduction) 5

6 Low-Pressure SCR - The SCR system is placed on the lowpressure side, after the TC turbine, giving high flexibility to arrange the SCR system anywhere in a vessel. - No engine modification is required WinGD provides interface specifications - Integration of LP-SCR control interface. - Released for the entire engine portfolio. - Published engine performance data (GTD data). Picture Doosan 6

7 LP-SCR PID Tier III package mechanical automation UREA Solution Pump Unit Dosing Unit FM Urea Soot Blowin g Heat/Vent Unit Pressurised Air V1 Mixing Pipe SCR V3 V2 V7 SCR supplier Engine supplier SCR system related valves V1: Reactor inlet valve V2: Reactor outlet valve V3: Reactor bypass valve V4: Turbine bypass V5: Scavenge air wastegate valve V7: Pressure and heating air relief valve Engine Exhaust manifold SAR M SAC V 5 V 4 Engine supplier Exhaust Pipe to Economiser Shipyard 7

8 High-Pressure SCR Example W6X72, single TC V3 V2 V1 V4 SCR system related valves V1: Reactor inlet valve V2: Reactor outlet valve V3: Reactor bypass valve V4: Turbine bypass V5: Scavenge air waste gate valve (not shown) V7: Pressure and heating air relief valve (not shown) 8

9 HP-SCR PID Tier III package mechanical automation UREA Solution Pump Unit Dosing Unit FM Urea Soot Blowing Heat/Vent Unit Pressurised Air Mixing Pipe SCR V 7 SCR supplier V1 V 3 V 2 Engine supplier SCR system related valves V1: Reactor inlet valve V2: Reactor outlet valve V3: Reactor bypass valve V4: Turbine bypass V5: Scavenge air wastegate valve V7: Pressure and heating air relief valve Engine Exhaust manifold SAR SA C M V 5 V 4 Engine supplier Exhaust Pipe to Economiser Shipyard 9

10 HP-SCR Integrated on-engine package 10

11 HP-SCR Single TC pilot - 5RT-flex58T-D - 22,000 DWT MPV - CMCR 10,000 kw at 105rpm - Shipyard: Ouhua Shipyard - Class Society: LR - Owner: China Navigation 11

12 HP-SCR Single TC pilot - Successful FAT in January Successful sea-trial in July Start of operation in August

13 Optimised BSFC with HP SCR Indicative fuel consumption increase for SCR operation in Tier III mode (example W6X72 Low Load Tuning à engine and rating dependent) W6X72, kw at 82 rpm Δ + 1g/kWh BSFC [g/kwh] 20,0 30,0 40,0 50,0 60,0 70,0 80,0 90,0 100,0 110,0 Engine Power [%] BSFC T II BSFC T III SCR 13

14 HP-SCR references Delivered or under construction RTA52U - 3x RoRo (Wagenborg, SWE), since 1999 RTX-5-1x 6RT-flex50 research engine (Wärtsilä, Trieste) RT-flex58T - 1x 22.1 kdwt MPP (China Navigation, Singapore) W-X72-2 Suezmax Tankers (AMPTC, EG) Total: 7 engines 14

15 EGR (Exhaust Gas Recirculation) 15

16 High-Pressure EGR Validated Tier III solution Function - HP-EGR; Approx. 40% exhaust gas is recirculated outside the cylinder. Characteristics - Engine internal approach, compact solution. - Requires more complex ancillary systems than SCR. - Comes with a considerable fuel penalty in Tier III mode - In case of scrubber failures, engine cylinder components are subject to fast degradation. - Scrubber waste water treatment requires caustic soda and generates sludge. - Exhaust cooling absorbs heat energy which is lost. - Upper engine structure requires reinforcement WinGD pilot test planned in

17 Internal EGR Contributing technology Function - Internal EGR; exhaust gas is retained in the cylinder during scavenging. - Not able to attain Tier III NO X level by itself. Characteristics - High boost pressure combined with Miller timing compensates temperature level in the cylinder. - Of all the EGR approaches, internal EGR has the lowest number of components exposed to the exhaust gases. - No additional ancillary systems needed. - No exhaust gas cleaning needed. DbsNOx HPEGR, RTX-3 LPEGR, RTX-4 Internal EGR is standard on WinGD Tier II low speed engines. 10 % 10 % EGR rate 17

18 Conclusion 18

19 Conclusion WinGD is currently LP-SCR - Providing a control interface specification. - Open for any LP-SCR provider. HP-SCR - Providing an engine interface specification. - Having a single TC field test vessel. - Planning a multiple TC field test. - Designing an on-engine concept. LP-EGR - Having own experience with testing. - Open for testing third party proposals. HP-EGR - Optimising scrubber technologies. - Planning a full scale RTX HP-EGR test. - Planning an HP-EGR field test 19

20 Development Roadmap Tier III NO X abadement technologies Step 1 - Single TC HP-SCR system in operation. - Fundamental expertise for SCR technologies 2015 Step 3 - Multi TC HP-SCR in operation. - Fullscale HP-EGR test on RTX 2017 Step 5 - Compact On-engine HP- SCR operation Full Tier3 Portfolio 2014 Step 2 - Multi TC HP-SCR concept - HP-EGR scrubber technology 2016 Step 4 - Off-engine HP-SCR portfolio release - HP EGR field operation

21 WinGD Summary Where do we go? HP-SCR First Choice LP-SCR Fully Supported EGR Development - Technology Leadership - 1 st step off-engine - 2 nd step on-engine - GTD data - Performance optimised - Third party supply - Control integration - Engine limitations - GTD data - Concepts available - Pilot Tests pending 21