• Home
  • News
  • SCF Group chooses WinGD’s X-DF technology for the first ever gas-powered Aframax tanker
  • 2017 April 13 12:30

    SCF Group chooses WinGD’s X-DF technology for the first ever gas-powered Aframax tanker

    Extending the benefits of its dual-fuel technology beyond LNG carriers with a world premiere, Winterthur Gas & Diesel (WinGD) has announced that its low-speed dual-fuel engines with X-DF low-pressure gas admission will propel the first ever gas-fuelled Aframax crude oil tankers.

    Under a contract signed in March 2017, SCF Group, Russia’s largest shipping company, has chosen seven-cylinder, 62 cm bore type 7X62DF engines from WinGD’s X-generation to propel a series of four LNG-fuelled Aframax-class tankers. The ships will be built by Hyundai Heavy Industries (HHI) of South Korea at its shipyard in Samho, while the 7X62DF engines will be built by HHI’s Engine & Machinery Division (HHI-EMD) in Ulsan, South Korea.

    The 7X62DF engines are rated 13,800 kW at 86 rpm and designed to operate on a choice of LNG, HFO, distillate or hybrid liquid fuels. The engines comply with IMO Tier III limits for oxides of nitrogen (NOx) in their gas fuel mode, and with IMO Tier II when burning liquid fuel. To enable IMO Tier III compliance on liquid fuel operating mode, the contract also specifies the supply of low-pressure selective catalytic reduction (SCR) after treatment systems for the 7X62DF engine.

    As well as the engine designs, WinGD will also supply its Engine Diagnostic System which targets increased availability via monitoring, lower fuel costs via engine performance optimising and extension of predicted Times Between Overhaul (TBO) of components.

    Vessel details

    The LNG-fuelled Aframax crude oil tankers have a capacity of 114,000 dwt. The vessels are designed to ice-class 1A and are scheduled to operate primarily in the Baltic and North Seas. With the ability of the 7X62DF engines to meet IMO Tier III limitations on NOX and SOX in Emission Control Areas (ECAs) when operating on gas without after treatment, and when burning low sulphur liquid fuel with low-pressure SCR, the tankers are designed for worldwide trade, including ECAs.

    SCF anticipates that the WinGD X-DF engines will deliver substantial emissions benefits as well as excellent total cost of ownership (TCO). To exceed rather than meet emissions legislation in the environmentally sensitive regions in which its fleet operates, SCF notes that marine engines running on LNG release over 90% less sulphur oxides (SOX), over 80% less nitrogen oxides (NOX), 15% less carbon dioxide (CO2) than those burning standard marine fuels. The ships’ auxiliaries and boilers will also be equipped for operation on gas fuel.

    On the TCO side, SCF acknowledges the benefits of the 7X62DF with low-pressure gas admission in terms of both capital expenditure (CAPEX) and operating expenditure (OPEX). As confirmed during their development programme, the X-DF engines employ a lean air-gas mixture ignited by injection of a small amount of liquid fuel to achieve high fuel efficiency, very stable combustion and inherently low formation of NOX, allowing IMO Tier III compliance in ECAs without exhaust after treatment.

    Reducing both CAPEX and OPEX, the low-pressure gas admission technology means that in contrast to engines with high-pressure gas injection, the gas fuelling system on the X-DF engines does not require high-pressure electrically-driven cryogenic pumps. This considerably reduces both the purchase and installation cost of the fuelling system and the consumption of electricity needed for injection of gas into the combustion chamber. As a result, there is also the potential to dimension a ship’s auxiliary plant smaller for further CAPEX and OPEX savings.

    Affirmation of X-DF

    As well as being a source of pride, this contract for WinGD engines to power the first Aframax crude oil tankers with dual-fuel engines is affirmation of the WinGD X-DF low-pressure gas admission technology. “This order represents a vote of confidence in X-DF and a recognition from SCF Group and its partners of the benefits of low-pressure X-DF technology to both their business and the environment,” notes Martin Wernli, WinGD CEO. “Further, with this project the SCF Group has raised the bar for environmentally-friendly Aframax tankers. Overall the order for the 7X62DF for the gas-fuelled Aframax tankers is a very clear message that our low-pressure lean burn technology is becoming the industry standard for all LNG-fuelled vessels, and not just LNG carriers.”

    Additionally, the WX72DF also successfully passed the Type Approval Test (TAT) on 22 March. To date, already seven engines have been built, all completing the respective shop tests (FAT). All X-DF engines are meeting and exceeding by far the requirements for Tier III NOx emissions. WinGD’s X-DF concept with its low-pressure gas system provides advantages in terms of lower investment and operating cost. It allows also compact installation of a fuel gas handling system which convinces with its simplicity hence lower CAPEX and OPEX, thanks to the low gas pressure requirement. The measured NOX emissions are far below the required Tier III limit.




2022 January 19

18:20 New SGMF publication provides expansive and highly relevant guidelines on safe bunkering of LNG
18:03 ESL Shipping sells the barge Espa
17:52 High efficiency Wärtsilä power solutions to drive seven new Arctic Shuttle Tankers
17:50 Euroseas announces new charter for its 2,788 TEU, 2004-built vessel
17:33 Freeport of Riga Authority to invest almost EUR 1 million in implementation of port digital technology and IT solution projects this year
17:15 ABS, SDTR and SDARI develop methanol-fueled bulker
16:54 Thistle Wind Partners land 2 GW in ScotWind offshore wind leasing round
16:26 Results of Russian ports in 2021: infographics and analytics
16:05 Port of Blyth orders Konecranes Gottwald Generation 6 Mobile Harbor Crane
15:40 Equinor awarded 26 new production licences on the Norwegian continental shelf
14:56 Oboronlogistics’ Sparta IV to deliver project cargo to India
14:29 Sea Port of Saint-Petersburg increased its throughput in 2021 by 17% YoY
14:08 Growing orders for Alfa Laval FCM LPG fuel supply systems reflect strength in Alfa Laval’s broad LPG offering
13:45 Throughput of Novotrans at Ust-Luga port’s ferry terminal rose by 9.2% in 2021
13:24 ABB adds digital analytics feature to turbochargers, giving performance visibility to shipowners
12:51 Port of Corpus Christi finishes Fiscal Year 2021 with record tonnage
12:50 FESCO delivers equipment for NPP Akkuyu in Turkey
12:27 Helsinki City Board approves the Port of Helsinki Ltd development programme
12:13 METIS adds new functionality to cloud-based platform to enhance decarbonisation and compliance support
11:41 North makes key Fixed Premium P&I appointments to accelerate diversification drive
11:35 Jumbo-SAL-Alliance delivers comprehensive transportation solution for the transportation of offshore platform modules
11:23 Throughput of Murmansk Sea Fish Port in 2021 rose by 20.7% YoY
11:01 Throughput of Rostov-on-Don port in 2021 fell by 15%, year-on-year
10:39 MABUX: Bunker price may continue upward changes on Jan 19
10:16 DNV: “No room for complacency” despite advancement in shipping safety
10:02 Norilsk Nickel to have icebreaker built by Helsinki Shipyard Oy
09:29 Baltic Dry Index as of January 18
09:13 Crude oil prices continue rising amid high demand

2022 January 18

18:45 X-Press Feeders launches Germany Sweden X-Press
18:04 Crown Estate Scotland announces the outcome of the first Scottish offshore wind leasing round in over a decade
17:52 Throughput of Russian seaports in 2021 climbed by 1.7% (detalization)
17:34 Fugro secures cable route survey contract for Denmark’s Energy Islands development supporting the transition to renewable energy
17:04 MPC Capital secures new building slots for 5,500 TEU container ships
16:54 Incat Tasmania awarded a contract to build a 76 metre high speed catamaran for South Korea
16:40 Throughput of Taganrog port in 2021 fell by 1% Y-o-Y
16:24 NYK concludes long-term charter agreement for LNG carrier with EDF LNG Shipping
16:04 Ulstein and Sinoocean sign a framework agreement on spare parts and aftermarket services
15:44 DP World launches a single window digital solution for border authorities
15:24 KONGSBERG delivers innovative propulsion technology to VARD for vessel newbuilds
15:04 Knutsen and NYK establish new company for liquified CO2 Transportation and storage
14:35 NYK orders four LNG-fueled Capesize bulk carriers
14:14 GTT receives two orders for the tank design of new LNG carriers
13:37 Throughput of port Kavkaz in 2021 fell by 19% Y-o-Y
13:14 Unifeeder starts using carbon neutral towage services to boost decarbonization
12:50 Throughput of Kaliningrad port in 2021 rose by 2% Y-o-Y
12:25 Throughput of port Vyborg in 2021 rose by 60% Y-o-Y
12:01 Chinese refinery throughput falls in December
11:36 Port of Boston welcomes its biggest container ship ever
11:19 Fluxys launches 4 additional proposals for hydrogen and CO2 infrastructure in Belgium
10:28 Throughput of port Primorsk in 2021 rose by 7% Y-o-Y
10:03 The Nippon Foundation and Shin Nihonkai Ferry complete a demonstration test of the world’s first fully autonomous ship navigation systems on a large car ferry
10:02 MABUX: Bunker price may continue upward trend on Jan 18
09:49 Container throughput of Hong Kong port (China) in 2021 fell by 1.1%
09:31 Baltic Dry Index as of January 17
09:13 Brent futures exceeded $87 a barrel for the first time since October 2014

2022 January 17

19:02 Thyssenkrupp plans to spin off electrolyser business
18:16 Konecranes delivers three more Rail-Mounted Gantry cranes to Port of Virginia
18:00 Gazprom experts join editorial advisory board of PortNews’ magazine Hydrotechnika
17:46 ICTSI Subic welcomes Wan Hai’s consolidated service
17:33 Average spot market price for Russian M100 product rose to RUB 26,989 pmt