Alternative fuels

Ukapljeni prirodni plin (LNG)

The lower carbon content of LNG compared to traditional ship fuels enables a 20% to 25% reduction of carbon dioxide (CO2) emissions. Using LNG as ship fuel will also reduce emissions of NOx and particulate matter (pm). It has the advantage of being less costly than diesel. LNG in it’s most practical way comes with the dual fuel option, running on both LNG as well as conventional fuel. Dual fuel engines offer all the benefits of a gas engine whilst maintaining the ability to be operated as a conventional diesel engine when required.

Gas to Liquids (GTL)

Gas to liquids (GTL) is a refinery process to convert gaseous hydrocarbons into longer-chain hydrocarbons such diesel fuel. It is virtually sulphur-free and has significantly lower emissions of carbon monoxide, hydrocarbons, nitrogen oxide and particulate matter then conventional petroleum products. GTL can use the same infrastructure and engines as diesel.

Saznaj više

• LNG DF 95-5

• GTL Fuel

Tehnologija kontrole emisije

Selektivna katalitička redukcija (SCR)

The technology of Selective Catalytic Reduction (SCR) is applied by the injection of a urea solution (CO(NH2)2) or ammonia (NH3) in the exhaust gas at a temperature of 290 – 350 °C. A catalyst is placed in the exhaust gas channel, where the reducing agents react with the nitrogen oxides forming nitrogen and water.

Fuel-water emulsion (FWE)

The application of fuel-water emulsion technology reduces both particulate matter and NOx-emission. It can be regarded as a most promising technology for greening the inland waterway transport. After emulsifying water and fuel before injection, a ‘micro explosion’ reduces the fuel oil droplets into numerous smaller ones. These smaller droplets ignite and burn easier than the bigger droplets. Pm and soot creation zones are reduced, the thermal effectiveness improves and fuel consumption decreases. FWE also leads to a cooling down effect of the combustion chamber temperature. This results in a reduction of NOx emission.

Diesel particulate filters (DPF)

Diesel particulate filters (DPF) are devices that physically capture diesel particulates to prevent their release to the atmosphere. Diesel particulate filter materials have been developed that show impressive filtration efficiencies, in excess of 90%, as well as good mechanical and thermal durability.

Saznaj više

• Catalyst (SCR) + Filter (DPF)

• Fuel Water Emulsion (FWE)

• Fuel Water Emulsion (FWE) + Catalyst (SCR)

• Catalyst (SCR)

Optimizacija propelera

Učinkovitost brodskog propelera raste s njegovim promjerom. Međutim propeleri brodova unutarnje plovidbe, zbog ograničene raspoložive dubine vode, vrlo su malog promjera. Kao posljedica, učinkovitost je vrlo niska s obzirom da ti propeleri moraju proizvesti relativno veliki potisak. Danas, gole propelere rijetko tko primjenjuje na plovilima unutarnje plovidbe s obzirom da je apsorpcija energije ograničena na oko 300 kW / m2 površine propelera.

Saznaj više

• Catalyst (SCR) + Filter (DPF)

• Propeller Upgrade

Optimizacija protoka propelera

Razlika u brzini propelera Slipstream (velike brzine) i krmenog protoka broda (niska brzina) uzrokuje dodatne turbulencije iza broda. Energija potrebna za proizvodnju turbulencija je na trošak efikasan pogon broda.

Saznaj više

• Catalyst (SCR) + Filter (DPF)

• Flow Extender