No. 425 June - July. 2024

World’s first successful hydrogen combustion operationof a large marine engine
MITSUI E&S Co., Ltd. and licensor MAN Energy
Solutions SE (MAN ES) have achieved a world first withthe successful hydrogen combustion operation of a large
marine 2-stroke test engine with a bore size of 50cm
located on the premises of the MITSUI Tamano Factory,
aiming for the early launch of hydrogen-related businesses in the maritime industry.
This initiative is part of the Ministry of Land, Infrastructure, Transport and Tourism subsidy project “Maritime Industry Aggregation and Coordination Promotion
Technology Development Support Project(*1),” which was
adopted jointly with Daihatsu Diesel Co., Ltd. in fiscal
2021.
One of the four cylinders of the test engine 4S50ME-T(output 7MW, rated speed 117rpm, MEP 2.10MPa)
was converted to hydrogen operation, based on the LNGfired ME-GI engine design, and high-pressure hydrogengas was supplied from the hydrogen gas supply facility(liquid hydrogen tank, hydrogen gas compressor, etc.)
completed(*2) in October last year. The coupling operation was successfully conducted with this test engine at
100% load without any problems such as hydrogen leakage.
Hydrogen fuel ignites easily but requires accurate
combustion control, but the company succeeded in covering the equivalent of 95% of the heat value with hy-

Figure shows cylinder pressure curve on hydrogenand conventional fuelFor further information please contact:

Hydrogen combustion test on MAN B&W 4S50ME-T
drogen fuel in this 100% engine load operation, and thecylinder pressure curve was equivalent to that of theother three cylinders operated with conventional fuel.
The company also confirmed that the hydrogen gas
supply facility is capable of the stable supply of highpressure hydrogen required for the engine.
This is the world’s first success in hydrogen combustion operation of a large marine 2-stroke engine with abore size of 50cm, and the company is now preparing toprovide marine propulsion systems that can greatly
contribute to the GHG reduction of the maritime industry.
The Group will acquire technologies and expertise
related to the storage, supply and utilization of hydrogen, which is a next-generation fuel, through the development of hydrogen fuel propulsion system technologies
and hydrogen supply infrastructure-related technologies,
and will contribute to the realization of a decarbonizedsociety.
Note:*1: June 16, 2022 “Construction of Hydrogen Supply Facility for Development of Hydrogen-Related Products”*2: October 23, 2023 “Completion of Construction of Hydrogen Supply
Facility for Development of Hydrogen-Related Products”Hydrogen
combustion test on MAN B&W 4S50ME-T
Website: http://www.jsea.or.jp

JAPAN SHIP EXPORTERS' ASSOCIATION

15-12, Toranomon 1-chome, Minato-ku, Tokyo 105-0001 Tel: (03) 6206-1661 Fax: (03) 3597-7800 E-Mail: postmaster@jsea.or.jp

No. 425 June - July. 2024 Page 2

JMU completes newly-developed Dunkirkmax-type bulk carrier
SPRING HARMONY
Japan Marine United Corporation(JMU) delivered the SPRING HARMONY, a 181,000DWT bulk carrier,at its Ariake Shipyard on March 13,2024. This is the 4th vessel of a newlydeveloped Dunkirkmax-type bulk carrier, called N181BC, which has proved
successful in both economically andenvironmentally friendly areas.
The N181BC type has achieved theEnergy Effiiciency Design Index(EEDI) Phase 3 requirement (30%reduction from the reference line) byapplication of the latest energy saving technologies, and will contributeto environment protection through its
eco-friendly performance. The design
has increased deadweight and cargohold capacity suitable for loading bulk
coal and iron ore in its nine cargoholds, achieved by JMU’s expertiseand vast experience. The SSDR
(Super Stream
Duct®) and
SURF-BULB ®
installed on fore
and aft of the propeller, respectively, greatly
improve the propulsion performance. The ALV-Fin® (Advanced
Low Viscous Resistance Fin) installed
fore of the propeller controls sternwater flow to gain better propulsive
efficiency. Furthermore, a unique bow
shape, the LEADGE-Bow®, can reduce the added resistance due towaves, and the well-refined shape ofthe superstructure can attain low
wind resistance.

Principal particulars
L (o.a.) x B (mld.) x D (mld.) x d (mld.):
292.0m x 45.00m x 24.55m x18.20mDWT/GT:
182,498t/93,367
Main engine: MAN B&W 7S60MEC10.6-HPSCR diesel x 1 unit
Speed:
14.4ktComplement:
25
Classification:
ClassNK

Mitsubishi Shipbuilding acquires AiP from ClassNK for AFSS
— Approved in Tandem with AGAS —Mitsubishi Shipbuilding Co,
Ltd., a part of Mitsubishi
Heavy Industries (MHI) Group,
has acquired Approval in Principle (AiP) from the Japaneseclassification society ClassNK
for an ammonia fuel supply
system (AFSS) for the new
X-DF-A design, a large,
low-speed 2-stroke ammoniafueled engine under development by WinGD, a Swiss designer and licensor of large marine
engines. The AiP presentation ceremony took place on April 11, 2024 at
the Sea Japan 2024 International
Maritime Exhibition and Conferenceat Tokyo Big Sight.
In June 2023, Mitsubishi Shipbuilding and WinGD concluded amemorandum of understanding(MOU) to undertake joint technicalstudies on an AFSS, aiming to contribute to the achievement of a newtarget set by the International Maritime Organization (IMO) of net zero
greenhouse gas (GHG) emissions in
the global maritime industry by or

At AiP Presentation Ceremony

From right are Mr. Dominik Schneiter,
CEO, WinGD; Mr. Shin Ueda, President& CEO, Mitsubishi Shipbuilding; and Mr.
Masaki Matsunaga, Executive Vice President/ Director of Plan Approval and Technical Solution Division, ClassNK.

around 2050. The joint studies resulted in finalization in February 2024of the basic design for an AFSS for
the X-DF-A engine under development by WinGD. The AiP was acquired together with approval of a
new ammonia gas abatement system(AGAS), and now technical studies
will go forward with WinGD towardcommercialization.
Ammonia emits no CO 2 at
combustion, so has the potential
to contribute significantly to
reducing GHG emissions in themaritime industry, and may beutilized in the future as a sourceof stable, clean energy. Goingforward, Mitsubishi Shipbuilding will continue to develop
marine ammonia handling systems, including fuel supply systems for ammonia combustion systems for the X-DF-A and other engines, as well as various ammonia gas
abatement systems. In addition, by
proposing the design and engineering of ammonia-fueled ships andonboard plants consisting of multiple
ammonia-fueled combustion systems
such as main engines, power generation engines, and boilers, Mitsubishi
Shipbuilding will promote decarbonization of the maritime industry in a
carbon-neutral society, and also contribute to reduction of environmental
impacts on a global scale.

No. 425 June - July. 2024 Page 3

Mitsui E&S Shipbuilding obtains ClassNK’s AiP
of LFSS for marine engines

Mitsui E&S Shipbuilding Co.,
Ltd. (Mitsui E&S Shipbuilding)obtained Approval in Principle(AiP) of a Low-flashpoint Fuel
(MeOH) Supply System (LFSS) for
use in large low-speed marine
main engines from Nippon Kaiji
Kyokai (ClassNK), on April 11,
2024.
This LFSS has been developed
exclusively for large marine main
engines, with the main components featuring simple and compact designs with small size and low
weight. The main components consistof pumps, heat exchangers, and a controller, with manufacture outsourced
to Japanese companies. Therefore,
Mitsui E&S Shipbuilding will be responsible for the operation manuals
in English as well as supporting thevarious inquiries of users.
Engineers of Mitsui E&S Ship-

Mr. Masaki Matsunaga, Executive Vice
President/Director of Plan Approval andTechnical Solution Division of ClassNK(at left) and Mr. Yasunori Kohatake, President Representative Director of Mitsui
E&S Shipbuilding Co., Ltd. (at right)

building will also be ready to attend
commissioning tests and trial operations. Adoption of the Mitsui E&S
Shipbuilding LFSS assembled in Ja-

pan will eliminate the need to invite engineers of overseas manufacturers to Japan and to dispatch
engineers for the factory acceptance test (FAT) held abroad,which will reduce the administration and costs for Japanese shipbuilders as well as overseas shipowners who want to construct
new ships in Japan.
Strengthened regulations forenvironmental protection will
require conversion of the fuelfor marine engines from the conventional heavy oil to new fuels including methanol. This switchover to newfuels will require much time andeffort to be expended by the users.
Mitsui E&S Shipbuilding intends
to support users of the new fuels byintroducing the new LFSS and to
supply expertise as part of the effort
to achieve Carbon Neutral 2050.

Shin Kurushima Sanoyas completes Panamax bulk carrier
LOWLANDS IYOShin Kurushima Sanoyas Shipbuilding Co., Ltd. completed construction of the Panamax bulk carrier,
LOWLANDS IYO, at Shin Kurushima Sanoyas Mizushima Shipyard on
March 13, 2024. This is the 19th
vessel of a series of the Sanoyas
newly-developed 82,000DWT-type
Panamax bulk carriers. The vessel
not only applies latest rules such as
CSR B&T, NO x Tier III regulations
and SO x emission regulations, butalso has the equivalent level of deadweight with shallower draft than thebuilder’s previous design.
The vessel exceeds 30% reductionof CO 2 emissions (Phase 3) requiredby the IMO’s EEDI regulation inadvance that will be applied to ships
for which the building contract isplaced on or after 2025.
For improvement of propulsion efficiency, the vessel is equipped with alow-speed, long-stroke electronicallycontrolled main engine combined witha high-efficiency propeller and rudder

appendages. Furthermore, patented
energy saving devices such as the
Sanoyas developed STF (SanoyasTandem-Fin) and ACE DUCT (Sanoyas Advanced flow Controlling andEnergy saving DUCT) are applied.
These energy saving devices havebeen improved over the previous design to achieve over 8% reduction ofenergy consumption so that EEDI
Phase 3 is definitely satisfied.
Various eco-friendly features include the main engine with SCR compliant with the NOx emission Tier III
limit for the prevention of air pollution, and dedicated low sulphur
gas oil tank tocruise in ECAs
(Emission Control
Areas). In addition, countermeasures such as Ballast Water Treatment System andindependent hold-ing tanks for rainwater on the upper
deck for the protection of marine
environment, are also incorporated.
Principal particulars
Hull No.:1395
L (o.a.) x B (mld.) x D (mld.) x d (mld.):
229.00m x 32.24m x 20.15m x
14.594m
DWT/GT:
82,019t /43,455
Cargo hold capacity: 97,034m3(grain)
Classification:
ClassNK
Complement:
24
Speed, service:
Approx. 14.1kt
Delivery:March 13, 2024

No. 425 June - July. 2024 Page 4

SKDY completes LNG-fueled vehicle carrier, CERULEAN ACE

Shin Kurushima Dockyard Co.,
Ltd. (SKDY) completed constructionof the LNG-fueled vehicle carrier,
CERULEAN ACE, at its Onishi Shipyard for delivery to Susan Navigation
S.A. on March 13, 2024. The carrier
can transport over 7,000 automobilesof the medium type and is now operated by Mitsui O.S.K. Lines, Ltd.
(MOL) on routes worldwide.
The CERULEAN ACE is the third
LNG-fueled vehicle carrier built by the
Shin Kurushima Dockyard (SKDY)
group, equipped with a high-pressuredual-fuel main engine and the first
LNG fuel tank fabricated by the shipyard. The ship’s main engine using
LNG can decrease emissions of CO 2
by 25 to 30%, SO x by approximately
98%, and NOx by approximately 85%.
Moreover, an Aerodynamic design has
been adopted for the top section of the
prow to reduce wind-pressure resistance by approximately 20%.
The car carrier is the post Panamax
type that measures 199.95m in overall length and 38m in width and iscapable of loading over 7,000 cars. The
cargo holds consist of 12 car decks (No.1
to No. 12 decks), on which automobiles, small trucks, and heavy vehicles

can be loaded.
For vehicle loading, the carrier
employs sternand center rampways on the starboard side, andthe car-deck-liftcars are provided.
The SKDY
group has also
been tackling insourcing of LNG tanks
at Shin Kurushima Sanoyas Shipbuilding Co., Ltd. that has extensive
experience in fabrication of gas tanks
including LPG tanks, and a heat-resistant building for LNG-tank fabrication has been built at the Mizushima
Works of Shin Kurushima Sanoyas.
Following the CERULEAN ACE,
three more LNG-fueled vehicle carriers are now scheduled to be built at
the SKDY group, all of which will use
SKDY-fabricated LNG tanks. Furthermore, the SKDY group intends tosupply its own LNG tank combinedwith a fuel gas supply system.
Principal particulars
Owner:
Susan Navigation S.A.
Ship type:
Pure car carrier
Hull No.:
6201

L (o.a.) x L (b.p.) x B x D x d (s) :199.96m x 196.00m x 38.00m x
36.86m x 9.95m
DWT/GT:
19,889t/73,132
Cargoes:Cars, small trucks, andheavy vehicles
Numbers of units
Abt. 7,150 units (RT43L type)
Abt. 6,000 units (Standard type)
Speed, service: 18.00kt (C.S.O, 15%
S.M.)
Main engine:
Mitsui-MAN B&W
6S60ME-C10.5-GI-EGRBP
MCO:
10,450kW x 96.5min-1
CSO: 8,883kW x Approx. 91.5min-1(85% M.C.O.)
Classification:
ClassNK
Registry:
PanamaCompletion:
March 13, 2024

Tsuneishi Shipbuilding delivers first LNG-fuelled limestone carrier
Tsuneishi Shipbuilding Co., Ltd.
delivered its first LNG-fuelled limestone carrier, SHIMOKITA MARU,
to the owner, NS United Kaiun
Kaisha, Ltd., on March 19, to replace
the old SHIMOKITA MARU of thesame type. The new vessel is poweredby a hybrid propulsion system consisting of an LNG-fuelled engine andbatteries manufactured by Kawasaki

Heavy Industries, Ltd. intended toachieve zero emissions on enteringand leaving port.
The hybrid propulsion system does
not affect the loading operations, similar to conventional vessels, due to theingenious design of the cargo holds.
Measures to control limestone dust,
vibrations, and unit lavatory adoption
in all cabins will improve safety andthe onboard living
environment. LNG
fuel reduces CO 2
emissions by approximately 24%
compared with conventional heavy oil
fuel, and the exhaust gas does notcontain SO x . The
LNG tanks use 7%

nickel steel plate developed by Nippon
Steel Corporation, the first marine
tank with the same performance as
conventional 9% nickel steel plate.
Tsuneishi Shipbuilding will continue to research and develop various
next-generation fuel vessels based on
the present technology, and is committed to supply new types of vessels
with both environmental performanceand economic efficiency to preserve
the global environment.
Principal particulars
L (o.a.) x B (mld.) x d (mld.): 93.8m x18.2m x 9.9m
DWT:
Approx. 5,646t
Propulsion system: Hybrid propulsion
system with LNG-fuelled engine(8L30KG) and batteries
Main route: Shiriyazaki to Muroranin JapanNo. 425 June - July. 2024 Page 5

Sasaki and MOL jointly receives BV’s AiP for ammonia bunkering vessel
Sasaki Shipbuilding Co.,
Ltd. (Sasaki) and Mitsui
O.S.K. Lines (MOL) received
an Approval in Principle (AiP)
for an ammonia (NH 3) bunkering vessel from Bureau Veritas(BV) in January 2024. The
vessel was designed by Sasaki
at the request of MOL, which
has been studying the concept
design of the ammonia bunkering
vessel with BV since 2022.
For the purposes of the AiP, BV
reviewed Sasaki’s design for the
12,000m3 ammonia bunkering vessel
with consideration to its NR 620(Rules for bunkering ships) and NR

From left to right on the photo are Mr.
Makoto Yamaguchi, Mr. Matthieu deTugny, Mr. Jiro Sasaki, and Mr. Alex
Gregg-Smith.

467 (Rules for the classification of steel
ships). The vessel is also eligible for

the BV CLEANSHIP and
GREENPASSPORT additional class notations.
The AiP was handed over byMatthieu de Tugny, Executive
Vice-President, BV Marine &Offshore, and Alex GreggSmith, Senior Vice President &Chief Executive, BV Marine &Offshore North Asia andChina, to Mr. Jiro Sasaki, Chief Operating Officer, Sasaki, and Mr.
Makoto Yamaguchi, Executive
Fellow (Chief Technical Officer atthat time), MOL, during a ceremony
at the Head Office of MOL in Tokyo.

NAMURA completes Dunkirkmax-type bulk carrier
HENG MAY and BO MAY

Namura Shipbuilding Co., Ltd.
delivered the two vessels, HENG
MAY and BO MAY, at its Imari Shipyard & Works on March 1, 2024 andMarch 29, 2024, respectively. The
vessels are the fifth and sixth of a
newly-developed 182,000DWT-typebulk carrier with excellent features.
The principal dimensions havebeen optimized to satisfy the restrictions of the Port of Dunkirk in France.
Improvement of propulsion performance and fuel saving in conformity
with EEDI Phase 3 is achieved by the
adoption of three energy saving devices, the Namura flow Control Fin(NCF), the Rudder-Fin and the additional fins behind the NCF developed
by Namura, and an electronically controlled main engine, the latest modelof high effiiciency propeller, and low
friction type anti-fouling paint.

For environmental protection, thevessels are equipped with a main engine and generator engines compliant
with Annex VI of the MARPOL 73/78
regulations to reduce NOx emissions,and an air seal type stern tube sealing device to reduce the risk of oil leakage. In addition, the vessels also comply with the SOLAS Chapter II-1
Regulation 3-12, Code on noise levels
onboard ships to improve the environment of the living quarters.
The ballast water treatment system to control the quality of ballast
water is equipped to protect the marine environment to comply with theInternational Convention for the Control and Management of Ships’ Ballast Water and Sediments. The vessels have class notation IHM (Inventory of Hazardous Materials) for compliance with the ship recycling conven-

HENG MAY

BO MAYtion according to the Guidelines for theInventory of Hazardous Materials.
The vessels have several storage
tanks for appropriate managementand discharge of drainage, sewage,
rain water, and water used for cleaning cargo holds to satisfy port restrictions on such discharges.
Principal particulars
L (o.a.) x B (mld.) x d (mld.): 291.92m
x 45.0m x 18.2m
DWT:
182,268t (HENG MAY)/
182,317t (BO MAY)
GT:
93,555Main engine: MAN B&W 7G60MEC10.5-EGRBP diesel x 1 unit
Complement:
24
Classification:
ABS
Registry:
Liberia
Completion: March 1, 2024 (HENG
MAY)/March 29, 2024 (BO MAY)No. 425 June - July. 2024 Page 6

MAERSKFORTALEZAWAN HAI 372

Builder: Imabari Shipbuilding Co.,Ltd.
Ship type: Container carrier
L (o.a.) x B x D: 254.94m x 40.00m x
21.70mDWT/GT: 76,521t/57,872
Main engine: 6G80ME-C10.6 diesel x
1 unitSpeed, service: 21.50kt
Classification: ClassNK
Completion: April 3, 2024

CASABLANCA TIGER

Owner: Hawk Marine Corporation
S.A.
Builder: Oshima Shipbuilding Co.,Ltd.
Hull No.: 11073
Ship type: Bulk carrier
L (o.a.) x B x D x d (ext.): 189.99m x
32.26m x 18.54m x 13.062m
DWT/GT: 58,506t/32,680
Main engine: Mitsui-MAN B&W
6S50ME-C9.7-EGRBP diesel x 1
unit
Speed, service: 14.30kt
Classification: ClassNK
Registry: Liberia
Completion: February 28, 2024

Owner: Wan Hai Lines (Singapore)
Pte. Ltd.
Builder: Japan Marine United Corporation
Hull No.: 5509
Ship type: 3,055TEU container ship
L (o.a.) x B x D x d: 203.5m x 34.8m x
16.60m x 11.5m
DWT/GT: 37,160t/30,676
Main engine: MAN B&W 7S70MEC10.5 diesel x 1 unit
Speed, service: 21.6kt
Complement: 25
Classification: DNVRegistry: Singapore
Completion: April 23, 2024

CATHERINE

Builder: The Hakodate Dock Co., Ltd.
Hull No.: 921
Ship type: 40,000DWT-type bulk carrier
L (o.a.) x B (mld.) x D (mld.) x d (mld.):
182.94m x 31.6m x 14.80m x
10.37mDWT/GT: 40,544t/24,427
Main engine: J-ENG 6UEC42LSHEco-D3-EGR diesel x 1 unit
Speed, service: abt. 13.6kt
Classification: ClassNK
Registry: Marshall Islands
Completion: April 23, 2024

OCEAN BLISS

Builder: Saiki Heavy Industries Co.,
Ltd./Onomichi Dockyard Co., Ltd.
Hull No.: 597
Ship type: Bulk carrier
L (b.p.) x B x D : abt. 174.00m x
32.00m x 14.80m
DWT/GT: abt. 40,000t/abt. 25,200
Main engine: MAN B&W 6G45MEC9.7 diesel x 1 unit
Speed, service: abt. 14.9kt
Classification: ClassNK
Registry: Singapore
Completion: February 9, 2024

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