The tanker Argonon is the first inland vessel on European waterways to be operated with a mixture of 80 percent liquefied natural gas ( LNG ) and 20 percent diesel fuel. It runs with an exemption from the Central Commission for Navigation on the Rhine (ZKR).
The ship's hull was 2009/2010 on the Sainty Marine shipyard built in China and on a heavy-duty pontoon along with seven other hulls for Rotterdam towed. The hull is a double hull construction with a Y-structure in the side walls. This allows the outer skin to be deformed over a large area without cracking, and is built according to a patent from Deen Shipping . This design also allows larger tanks than in normal double-hulled ships.
The ship is designed as a bunker ship and can load and unload two different products at the same time. The cargo is heated with a heating system installed on board, which draws the waste heat from two gas-powered 30 kW Capstone microturbines . In addition, the waste heat is used for the central heating, the evaporator system and the hot water supply on board.
drive
It is powered by dual-fuel diesel engines, on deck there is a 40 m³ insulated double-hulled stainless steel tank for storing the LNG with an evaporator system. The tank is at a pressure of three bar at -152 to -155 ° C . One tank of LNG is enough for a trip Rotterdam- Basel and back. By operating with LNG and diesel, CO 2 emissions are reduced by around 20%, NO x by around 50% and fine dust emissions by around 95%. Since LNG is cheaper than diesel fuel, there are operating cost savings with which the considerable additional costs should be amortized in 6 years.
literature
Argonon is on course . Inland navigation No. 11 2012 ( ISSN 0939-1916 )
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