Descrizione del progetto
Un trasporto marittimo più sostenibile grazie a motori aggiornati
Il gas naturale liquido dispone del potenziale per rendere il trasporto marittimo più sostenibile e andare a beneficio della salute umana. Tuttavia, sebbene le attuali tecnologie producano una quantità inferiore di CO2 con il gas, possono ancora emettere metano. Il progetto GREEN RAY, finanziato dall’UE, si propone di ridurre tali «sbavature di metano» sviluppando nuove tecnologie aggiuntive per i motori esistenti e nuovi. Le nuove tecnologie a livello di motore saranno sviluppate sia per motori a quattro tempi, come quelli impiegati su navi da crociera e battelli, che per i motori a due tempi utilizzati su petroliere e navi portacontainer. Oltre alle tecnologie per il motore, all’interno di GREEN RAY verrà sviluppata una tecnologia di post-trattamento per l’ossidazione del metano. I risultati saranno dimostrati a bordo di due navi appena costruite e di un’imbarcazione riqualificata.
Obiettivo
LNG utilisation in shipping is increasing and has direct effects namely benefits on air quality and human health. Moreover, CO2 emission is lower with gas use compared to diesel fuels, but ‘methane slip’ may form in gas combustion. The low-pressure dual fuel concept is the most popular LNG engine technology and unfortunately also the technology producing methane slip. Therefore, development of methane slip reduction technologies for these low-pressure dual fuel cases is the focus of this project.
To assess the methane emissions from shipping the GREEN RAY project will combine existing data collection with onboard measurements to address existing vessels and new builds, normal operation and varying loads, and further utilise these results in a model development to achieve LNG fleet level assessment.
To prevent the methane slip, the strong consortium of GREEN RAY will develop on-engine technologies for low pressure dual fuel engines and aftertreatment technologies for the existing vessels as well as newbuilds. First, the four stroke engine technology is developed further 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. Second, the on-engine technology development for the two stroke engine, around a patented LNG injection system, will aim to significantly reduce methane slip from e.g. tankers and container ships. Third, a unique approach of a sulphur resistant catalyst system to significant methane oxidation while also ensuring that the activity remains high over time. The achievements of these three technologies' development will be demonstrated onboard two new builds and one retrofit to existing vessel, all of them targeting TRL 7, and implementing the partnership on ZEWT. Dissemination and exploitation of GREEN RAY results towards acknowledged target groups will enable wide deployment of the new technologies maximising also the benefits for climate.
Campo scientifico
- engineering and technologyenvironmental engineeringenergy and fuelsliquid fuels
- natural scienceschemical scienceselectrochemistryelectrolysis
- engineering and technologyenvironmental engineeringair pollution engineering
- medical and health sciencesbasic medicineneurologystroke
- natural scienceschemical sciencesorganic chemistryaliphatic compounds
Parole chiave
Programma(i)
Meccanismo di finanziamento
HORIZON-IA - HORIZON Innovation ActionsCoordinatore
02150 Espoo
Finlandia