WinGD announces deployment of on-engine NOₓ abatement
Swiss marine power company WinGD has announced the commercial deployment of its on-engine NOₓ abatement system following type approval.
The approval follows more than two years of service with a prototype version.
The integrated Selective Catalytic Reduction (iSCR) solution underwent testing at Mitsui E&S DU (MESDU) Co’s factory in Aioi, Japan. It is claimed to be the only on-engine NOₓ reduction solution for marine two-stroke engines.
The successful approval test was observed by representatives from eight classification societies, including ABS, BV, CCS, DNV, KR, LR, ClassNK, and RINA.
The technology will be implemented on three WinGD 5X52-S2.0 engines currently being constructed for new bulk carriers at a Japanese shipyard.
Available for WinGD’s 52-bore and 62-bore engines, including those with short strokes, the technology can be used with various fuels such as fuel oil, ammonia, or methanol.
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The potential expansion of this technology to additional engines will be assessed based on the market’s response and demand.
WinGD product centre vice president Peter Krahenbuhl said: “WinGD’s unique on-engine NOₓ abatement solution secures IMO Tier III compliance while giving operators greater flexibility in engine room configuration and ship design.
“This new iteration further reduces the cost impact of NOₓ abatement and improves the efficiency of treatment with both existing and emerging fuels.”
The latest model features reductions in materials and production, a heating unit compatible with heavy fuel oil, and design enhancements aimed at minimising ammonia slip.
The iSCR system not only reduces the physical space required for off-engine equipment but also streamlines the piping process when compared to traditional SCR systems, according to the company.
The combined testing of the engine and NOₓ abatement system before installation simplifies both testing and commissioning.
The system also benefits from optimised exhaust flow management and uses the engine’s waste heat to create optimal conditions for treatment.
Last month, WinGD reported that early tests of its X-DF-A ammonia-fuelled engine have met key expectations.
The 52-bore single-cylinder engine is being tested at the company’s engine research and innovation centre (ERIC) in Winterthur, Zurich, Switzerland.
