Although the rail sector has been working on hydrogen powered trains for 20 years the fi rst production hydrogen fuel cell train the Coradia iLint produced by the French manufacturer Alstom has only been in service for two years in the Netherlands Germany and Switzerland Fuel cell trains can replace diesel powered locomotives on routes that aren t suitable for electrifi cation In maritime transportation fuel cells could replace diesel engines as well The fi rst ferries using the technology are planned to be deployed in 2021 with the largest one of them measuring more than 80 meters 262 feet The Swedish Swiss ABB Group is working on a fuel cell buff er battery solution in the medium two digit megawatt range that may even be usable on huge ocean liners The DFDS shipping company is planning to develop a 23 MW fuel cell propulsion system for a liner serving the Oslo Frederikshavn Copenhagen route The green hydrogen for it is supposed to be supplied by a large scale electrolyzer that receives its electric power from a nearby wind farm In the aviation sector hydrogen is getting ready for take off as well This fall Airbus announced that the company is planning to have an H2 jet airborne by 2035 In this case the hydrogen will either be burned in a gas turbine and or converted into electric power for electric motors in a fuel cell The biggest challenge this entails is that a hydrogen tank for comparable range would have to be about four times as voluminous as a kerosene tank This limits the utilization of this new technology to short and medium hauls of up to 3 700 kilometers 2 300 miles For long hauls scientists are working on hydrogen based synthetic fuels that are intended to replace the currently used kerosene Dr Stefan Gossens In this sector regulatory require ments are forcing both manufacturers and operators to pursue CO2 free or at least clearly reduced mobility as well In the rail sector the fuel cell has already proved to be a viable alternative to the diesel engine that can be imple mented quickly However I m currently not seeing fuel cells actually being able to replace the huge ship diesel engines in the foreseeable future but on ferries or smaller ships this is already a very realistic proposition In aviation my main hope is that it will boost the industrialization of syn fuels by using green hydrogen that can also be utilized in other areas H2 in rail air and maritime transportation ZEROe is an Airbus concept aircraft Two hybrid hydrogen turbofan engines provide thrust for the blended wing body aircraft The liquid hydrogen storage tanks are installed underneath the wings the 30 meter 98 foot catamaran Energy Observer embarked on a six year expedition at sea A fuel cell makes the vessel energy self suffi cient The required hydrogen is produced by an on board electrolyzer which in turn is supplied with electric power by deck mounted solar cells In 2017 58

Vorschau Schaeffler tomorrow 02-2020 EN Seite 58
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