WinGD Launches Innovative NOx Reduction Technology
The Swiss marine power company WinGD has secured type approval for its innovative integrated Selective Catalytic Reduction (iSCR) solution, designed specifically for marine two-stroke engines. This marks the first commercial deployment of the technology, which aims to reduce nitrogen oxides (NOx) emissions from ships. The iSCR system was tested at Mitsui E&S DU (MESDU) Co’s factory in Aioi, Japan, where three WinGD 5X52-S2.0 engines are being constructed for bulk carriers.
Advancements in NOx Reduction Technology
WinGD’s iSCR solution has undergone extensive testing over two years, including a prototype phase. The latest version boasts reduced material and production costs, along with a heating unit that allows operation with heavy fuel oil. Additionally, design modifications have been implemented to minimize ammonia slip, enhancing the system’s overall efficiency.
Peter Krähenbühl, WinGD’s Vice President of Product Centre, emphasized the benefits of this technology. He stated that the iSCR solution not only ensures compliance with IMO Tier III regulations but also provides operators with greater flexibility in engine room configurations and ship designs. The new iteration further mitigates the cost impact associated with NOx abatement while improving treatment efficiency for both existing and emerging fuels.
The iSCR technology simplifies the installation process by reducing the footprint of off-engine equipment and streamlining piping requirements compared to traditional SCR systems. This allows for easier testing and commissioning, as the engine and NOx abatement system can be evaluated together before installation. Optimized exhaust flow management and the utilization of waste heat from the engine create favorable conditions for effective treatment.
The successful testing of the iSCR system took place on January 16, with representatives from eight leading classification societies, including ABS, BV, CCS, DNV, KR, LR, ClassNK, and RINA, witnessing the event. The iSCR technology is available as an option for WinGD’s 52- and 62-bore engines, including short-stroke variants, and can utilize fuel oil, ammonia, or methanol. Future extensions to additional engine models will be considered based on market demand.
