2-Stroke and 4-Stroke – Page 7
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NewsNew Small-Bore Methanol Genset
In response to the seemingly inexorable rise of dual-fuel propulsion, MAN Energy Solutions is to augment its genset portfolio with a methanol-capable, auxiliary engine. The foundation for the new L21/31DF-M genset is the current L21/31 small-bore, four-stroke platform.
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NewsMethane slip reduction potential of Wärtsilä engine solutions
Swedish shipping company Furetank has announced that it is co-developing and testing two technologies with Wärtsilä that demonstrate the potential to halve methane slip emissions.
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NewsMAN’s 95-bore LGIM engine ready for Maersk newbuildings
Representatives from MAN Energy Solutions and A.P. Moller – Maersk presented an update on the methanol engines powering recent newbuilding orders at CIMAC 2023, including the new 95-bore developed for larger vessels.
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NewsWinGD plans next updates to X-DF engine
The developments from the X-DF1.0 to X-DF2.0 involved inclusion of the iCER EGR technology without changing brake mean effective pressure (BMEP), but now WinGD is looking to further increase efficiency and reduce emissions, this time with changes to BMEP.
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NewsMitsubishi Shipbuilding begins NH3 abatement system demonstration tests
Mitsubishi Shipbuilding Co., Ltd., a part of Mitsubishi Heavy Industries (MHI) Group, has announced the beginning of demonstration tests of the ammonia gas abatement system (AGAS) at its testing facility at Nagasaki District MHI Research & Innovation Center. The tests are intended to demonstrate that the AGAS can safely process surplus ammonia from ammonia-fuelled vessels.
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NewsChevron broadens collaboration with Cummins into biofuels
Chevron’s US subsidiary Chevron U.S.A. Inc., signed a memorandum of understanding with Cummins on 10 August extending the scope of an existing 2021 strategic collaboration agreement to cover biofuels, including renewable natural gasoline blends and biodiesel. The new agreement is intended to encourage the commercial and industrial adoption of the fuels in North America.
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NewsNew engineBOLL marine filtration system gains market share
BOLL & KIRCH has announced that its newly developed engine filtration system has received more than 1,000 orders since its recent launch, gaining a strong position in orders for MAN Energy Solutions’ ME-type engines.
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NewsAmmonia combustion without ignition improver demonstrated on single cylinder test engine
Mads Carsten Jespersen and a team of researchers from Technical University of Denmark (DTU) presented research into widening the operating limits of a spark-ignited engine operating on pure ammonia and confirmed that combustion of 100% ammonia, pre-mixed with air but without an ignition improver is feasible.
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NewsMAN’s 49/60DF engine ushered in a new generation of engine control
MAN Energy Solutions highlighted the development work that went into the 49/60DF engine at CIMAC 2023.
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NewsHanshin Gas Engine Thermal Efficiency Exceeds Diesel
A team from Hanshin Diesel led by Satoru Higashikawa presented results at CIMAC 2023 demonstrating the thermal efficiency of the company’s low speed 4-stroke gas engine.
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NewsJ-ENG expands China customer support
Japan Engine Corporation (J-ENG) has announced the opening of its first customer support center in China. The office in Shanghai opened on 1 August.
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News1MW Scale SWRI Tests Reveal Positive H2 Results
Researchers from Texas-based Southwest Research Institute studied the effects of introducing hydrogen on a diesel engine that had not been optimised for its use and found no short-term noticeable change in engine operation.
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NewsWärtsilä to supply MeOH-fuelled auxiliaries for CMA CGM newbuildings
Wärtsilä has been awarded an order to supply the methanol-fuelled auxiliary engines for six newbuild container vessels on order for the French shipping company CMA CGM.
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NewsMAN ES adds Hengli Engine to list of 2-stroke licensees
Hengli Engine (Dalian) Co., Ltd., (Hengli Engine), agreed a marine two-stroke manufacturing licence agreement with MAN Energy Solutions on 7 July, and plans to enter the marine engine building market.
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NewsWärtsilä targets high injection pressure for methanol
Methanol has already proven to have the potential to become one of the key solutions for the marine industry to reach net carbon neutrality, and Wärtsilä has multiple newbuild and retrofit solutions available already.
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NewsWärtsilä advances testing of new combustion concept
Wärtsilä has put a considerable R&D effort in developing the next generation of its dual-fuel lean burn gas engine, with about 300 hours testing completed.
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NewsMAN ES participating in 4-stroke methanol retrofit research project
MAN Energy Solutions has launched a project to develop retrofit solutions for medium-speed marine engines. The ‘CliNeR-ECo’ project includes partners from industry and research institutes, and will run until the end of 2025. Research association comprising MAN Energy Solutions, WTZ Roßlau gGmbH and TU Darmstadt start ‘CliNeR-ECo’ project.
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NewsMAN 175Ds for Svitzer tugs
UZMAR Shipyards in Turkey has placed an order for 4 × 12V175D-MM IMO Tier II engines, each rated at 2,400 kW @ 1,800 rpm, for two TRAnsverse tug newbuilds.
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NewsFirst NH3-fuelled X-DF-A engine to be delivered in Q1 2025
WinGD has stated that it is on track to deliver the first X-DF-A dual fuel engine capable of operating on ammonia by Q1 2025, and expects the first vessel powered by X-DF-A engines to enter service by 2026.
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NewsFirst ME-GA engine with individual cylinder control option completes gas trials
The first low-pressure ME-GA engine to be equipped with a new engine control feature, ‘ME-GA-opti’, has successfully completed LNG gas trials in South Korea, MAN ES has announced.
