Solution Scope: Ships emission reduction/ Decabonization

Target Contaminant: GHG

Solution Provider or Contact Point: Kati Lehtoranta, VTT, kati.lehtoranta@vtt.fi, Contact | GREEN RAY

Project: GREEN RAY -Clean Waterborne transport

ITS Description: 

To ensure the sustainability of the gains in human and environmental health from the shift to LNG, the GREEN RAY ITS aims to tackle methane slip at all engine loads, thus reducing shipping-based GHG emissions and increasing fuel-efficiency. This is done through the development of three technologies for low-pressure dual fuel engines in existing vessels and new builds. GREEN RAY is targeting a technology readiness level (TRL) of 7 – system protype demonstration in operational environment – and will demonstrate the three technologies on new vessels as well as retrofitting the technology on an existing vessel.

1. Four-stroke engine: this engine will aim to enable methane slip reduction at all engine loads and to be applicable to the largest engines in the market involving cruise, ferry and gas carriers.
2. Two-stroke engine: around a patented LNG injection system, this engine will aim to significantly reduce methane slip from e.g. tankers and container ships.
3. Sulphur resistant catalyst system: this system will significantly reduce methane slip emissions – up to 95% – and reduce the methane slip to less than 1g/kWh. This system will help shipowners to reduce their greenhouse gas emissions as demanded by the IMO.

Correspondence with BMM OIR (sectoral priorities, R&I activities, gaps, needs): The ITS supports the transformative innovation by addressing alternatives for low carbon fuels for the Maritime transport, in line with the OIR priority on the decarbonisation of the sector.