Daimler Truck tests fuel-cell truck with liquid hydrogen
Daimler Truck reaches its next milestone on the road to sustainable transportation also with hydrogen-based drives. Since last year, a Mercedes-Benz GenH2 Truck fuel-cell prototype has been undergoing intensive testing – both on the in-house test track and on public roads. Daimler Truck is now putting another prototype into operation to test the use of liquid hydrogen. Political support for the development program comes from Daniela Schmitt, Minister of Economic Affairs of Rhineland-Palatinate, who opened the regional hydrogen week “WOCHE DES WASSERSTOFFS SÜD” (#wdws2022) today with a test drive in Wörth am Rhein, Germany.
A newly installed prototype filling station at the development and testing centre in Wörth enables the refuelling with liquid hydrogen. Recently, Daimler Truck celebrated the first successful liquid hydrogen (LH2) refuelling of the truck together with Air Liquide. During the refuelling process, cryogenic liquid hydrogen at minus 253 degrees Celsius is filled into two 40 kg tanks mounted on either side of the chassis. Thanks to the particularly good insulation of the vehicle tanks, the hydrogen can be kept at temperature for a sufficiently long time without active cooling. Daimler Truck prefers liquid hydrogen in the development of hydrogen-based drives. In this aggregate state the energy carrier has a significantly higher energy density in relation to volume compared to gaseous hydrogen. As a result, more hydrogen can be carried, which significantly increases the range and enables comparable performance of the vehicle with that of a conventional diesel truck. The development objective of the series-ready GenH2 Truck is a range of up to 1,000 kilometres and more. This makes the truck suitable for flexible and demanding applications, especially in the important segment of heavy-duty long-haul transport. The start of series production for hydrogen-based trucks is planned for the second half of the decade.
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