Initiatives for Environmentally-Friendly Technologies
We will introduce our initiatives for GHG (alternative fuels for the future), as our environmentally-responsive technology for NOx, SOx, and CO2 regulations.
About our JUMP Solution Concept
The solution concept we provide is an engine that is compatible with both NOx and SOx regulations, that can provide benefits to ship owners, charter companies, shipyards, and all other stakeholders. This concept is named JUMP. UEC-LSJ is an ultra-low fuel consumption engine developed exclusively for MGO (A heavy oil) that embodies JUMP. We completed the 5UEC in December 2018, and are currently verifying its performance and reliability.
History of Fuel Saving for EEDI* Improvement
The below figure shows how fuel saving has been improved by J-ENG.
The horizontal axis and the vertical axis represent engine's bore size and specific fuel oil consumption(SFOC), plotting how SFOC has been improved by each series engines of UEC-LSE, LSH and LSJ, starting since 2000, 2013 and 2018, respectively. The EEDI of UEC-LSJ series engines has been improved by 3～7% comparing with LSE series through lower fuel consumption.
*EEDI: Energy Efficiency Design Index
Initiatives for NOx (Tier III) Regulations
Our lineup of low pressure EGR and SCR systems are IMO NOx Tier III compatible. These are all uniquely-developed systems that have a simple configuration, simple operational control, excellent fuel economy, and NOx trade-off, high reliability, and reduced CAPEX and OPEX. We will introduce the development history, development concept, and system overview.
How the Stratified Fuel Injection System Works
The stratified fuel injection system, applied for LSJ series engines, has a wide flexibility. The following two applications are under developing:
１．To reduce NOx emissions by increasing injected amount of water
An LSJ series engine uses water about half of fuel oil amount in the stratified fuel injection technology. When increasing the water portion further, it is possibly to comply with NOx Tier III regulation without EGR or SCR system.
An experiment showed an 80% NOx reduction when increasing the water amount as the same as fuel oil.
２．To apply carbon-free fuels, such as ammonia, bio-fuels etc., instead of water to reduce GHG
Mixed combustion by MGO, GTL with low-carbon and/or carbon-free fuel of ammonia, methanol, ethanol and bio-fuels can reduce GHG.
Initiatives for SOx (2020) Regulations
The regulations for the sulfur content in fuels used in regulated ocean areas was set to 0.1% or below in January 2015, and from January 2020, the sulfur content regulations for all other ocean areas aside from the regulated areas will be set to 0.5% or below. Unlike the NOx regulations, these regulations will be applied to ships that are already in service.
In order to comply with these regulations, in addition to using existing distillate with a low sulfur content (MOG or A heavy oil with a sulfur content of 0.5% or less), we will use a compatible oil with a sulfur content of 0.5% or less, and equipment (such as a SOx scrubber) that can reduce sulfur oxides in exhaust gases below the regulation value.
We will announce precautions and guidelines for compatible oils and SOx scrubbers in the UE Service Information.
Initiatives for GHG and Alternative Fuels in the Future
As an initiative for decarbonization, part of the countermeasures against global warming, we have entered into a joint research agreement on combustion using carbon-free fuels such as hydrogen and ammonia, together with National Maritime Research Institute, (National Research and Development Agency, part of National Institute of Maritime, Port and Aviation Technology).
We will be active in our initiatives for the research and development of new fuels, with the goal of realizing a decarbonized society that will reduce GHGs and can prevent global warming, as an energy society of the future in the shipping industry.
Roadmap to GHG Reduction
The below roadmap has been determined to reach the GHG reduction goals through EEDI improvement by fuel saving in three ways as:
１）Fuel change application of bio-fuels and LNG etc. after LSH series engines
２）Stratified fuel injection after LSJ series engines
３）New engine development using carbon-free fuels, such as hydrogen, ammonia and e-fuel etc.
We are taking initiatives for research and development, and data analysis, with the goal of creating new value using operational data.
In recent years, sensing technology and analysis have been developed due to the growing interest in IoT and AI technology application, and we aim for customer satisfaction by introducing these technologies and integrating them with our know-how.
We are taking CBM initiatives using the main engine diagnostic system and monitoring system.
Main Engine Diagnostic System
The integrated support system is a navigation support system for the main engine by remote monitoring, using the internal and external networks, and is a total-support package where the following effects can be expected.
• Efficient operation based on advanced monitoring and condition diagnosis
• Realization of preventative maintenance through early detection of abnormalities in onboard equipment
• Precise automatic judgments and gives instructions for support onboard without requiring remote communication
Monitoring System Initiatives
As a part of IoT and AI technology applications, we are developing monitoring technologies such as in-cylinder pressure control, electronic control engine waveform monitoring, bearing wear monitoring, and bearing temperature monitoring systems.
Challenge to Digitalization
J-ENG will aim for providing automonous/ independent main engines by developing the next generation Eco control system, 5th Generation, and digital twin technology to realize automonous/independent operation, continuous monitoring, and optimized operation / maintenance collaborating with classification societies and other parties.
The 5th generation Eco control system will be completed in 2022. By adding newly developed modules to the existing control system, it will be up-graded as a multi-task system, which will enhance the engine monitoring function and also sharing and open-sourcing the operation data with other parties to utilize the accumulated data.