|The Zemships infrastructure and ship. Click to enlarge.|
The EU-funded Zemships (Zero Emission Ships) full cell-powered passenger vessel will begin operation in summer 2008 in Hamburg on the Alster River (a tributary of the Elbe) and in the harbor area.
The demonstration ship, with a capacity of 100 passengers, uses a fuel-cell hybrid drive from Proton Motor (PM), powered by two PM Basic A 50 50kW fuel cell systems. An integrated battery package stores surplus energy from the fuel cells—for example when the ship is stopped at an interim port and requires less power.
|Power requirements for trips in the Alster and harbor reaches. Click to enlarge.|
When the ship needs maximum power—for example during casting-off and coming aside manoeuvres—the batteries supply the energy back to the engine.
An intelligent energy management system controls the division of work between fuel cells and battery. The ship stores 50 kg of compressed hydrogen gas at 350 bar—enough hydrogen so that it only needs to be refuelled about once every three days.
Starting in summer 2008 the vessel will be operated by ATG Alster-Touristik GmbH, a subsidiary of Hamburg’s public transport company, Hamburger Hochbahn AG. ATG is also responsible for designing the hull. Linde AG is constructing a hydrogen refuelling station on a side canal of the river Alster to supply the necessary fuel. A total of nine partners are involved in the pioneering Zemships project under the leadership of the Urban Development and Environment Authority of the Free and Hanseatic City of Hamburg.
Vom Solarkatamaran zum Wasserstoffschiff Brennstoffzellen im Wassertransport (ATG Alster-Touristik GmbH)