J-Eng plans to launch 60 centimeter bore ammonia-fueled UEC60LSJA engine in the marketplace after 2026.
One of the world’s three largest marine engine manufacturers, Japan Engine Corporation (J-Eng) could also be edging forward of the pack in growing massive two-strokes able to working on ammonia and hydrogen.
J-Eng, whose foremost shareholders embrace Mitsubishi Heavy Industries (MHI), is the developer and producer of the long-running UE engine sequence, which final 12 months reached the 40 million put in horsepower milestone.
Earlier this month, the corporate reported that, underneath a undertaking backed by Japan’s Green Innovation Fund and New Energy and Industrial Technology Development Organization (NEDO) it has already carried out what it claims is the world’s first “zero-emission fuel” ammonia co-firing operation of a big low-speed two-stroke ship’s engine and has begun testing of a hydrogen gasoline injection gadget for a big low-speed two stroke.
By “co-firing,” J-Eng signifies that the ammonia is being combusted together with gasoline oil.
The ammonia-fueled take a look at engine is put in at MHI’s Research and Innovation Center (Nagasaki) and has been fitted with J-Eng’s stratified injection system expertise, utilizing gasoline oil as a pilot gasoline.
Ammonia is a flame-retardant gasoline, and the technical problem is to burn the gasoline effectively and decrease the technology of NOx which has a excessive world warming potential. J-Eng addresses these points via its stratified injection expertise. This works by injecting the ammonia gasoline in such a method that it’s sandwiched between the flamable pilot gasoline and publish gasoline, making doable to attain superior combustion management, enhance the ammonia co-combustion charge, and cut back the temperature.
J-Eng will function the take a look at engine with ammonia gasoline underneath varied circumstances over the following 12 months.
A brand new facility to provide ammonia gasoline to the take a look at engine has additionally been put in adjoining to the constructing the place the take a look at engine is positioned, and the information and the expertise gained from the operation of this facility shall be fed again to the event of ammonia gasoline provide services on board for ships.
J-Eng’s purpose is to have a 50 centimeter bore, ammonia fueled UEC50LSJA engine accomplished in 2025 underneath the NEDO Green Innovation Fund undertaking. It plans to launch the UEC60LSJA engine, an ammonia-fueled engine with a bore of 60 centimeters, which is perfect for a foremost engine, in the marketplace after 2026 and has already began improvement of its oil-fired “twin,” the UEC60LSH engine, which is the successor mannequin to the lengthy operating UEC60LSE engine.
J-Eng’s purpose is to have a 50 centimeter bore, ammonia fueled UEC50LSJA engine accomplished in 2025 underneath the NEDO Green Innovation Fund undertaking. It plans to launch the ammonia-fueled 60 centimeter bore UEC60LSJA engine in the marketplace after 2026 and has already began parallel improvement of its oil-fired “twin,” the UEC60LSH engine, which is the successor mannequin to the lengthy operating UEC60LSE engine.
HYDROGEN FUELED ENGINE
J-Eng says its hydrogen-fueled UEC-LSGH engine shall be developed by making use of applied sciences cultivated via the event of dual-fuel (DF) gasoline engine. It says the toughest technical problem learn how to management hydrogen’s straightforward combustibility and that high-pressure hydrogen injection into the combustion chamber can deliver steady combustion to resolve this subject.
The first hydrogen-fueled UEC35LSGH engine. growing about 5,000 kW with a bore of 35 centimeters is anticipated to be full in 2026.
A key expertise for the engine, the gasoline injection gadget, has already been put in on the firm’s head workplace plant in Akashi metropolis and operational assessments have begun.
