Since final yr, a Mercedes-Benz GenH2 Truck fuel-cell prototype has been present process intensive testing each on the in-house take a look at monitor and on public roads. Daimler Truck is now placing one other prototype into operation to take a look at using liquid hydrogen.
Political assist for the event program comes from Daniela Schmitt, Minister of Financial Affairs of Rhineland-Palatinate, who opened the regional hydrogen week “Woche des Wasserstoffs SÜD” with a take a look at drive in Wörth am Rhein, Germany.
A newly put in prototype filling station on the growth and testing middle in Wörth allows the refueling with liquid hydrogen. Just lately, Daimler Truck celebrated the primary profitable liquid hydrogen (LH2) refueling of the truck along with Air Liquide.
In the course of the refueling course of, cryogenic liquid hydrogen at minus 253 levels Celsius is crammed into two 40 kg tanks mounted on both aspect of the chassis. With the significantly good insulation of the car tanks, the hydrogen could be saved at temperature for a sufficiently very long time with out lively cooling.
Daimler Truck prefers liquid hydrogen within the growth of hydrogen-based drives. On this mixture state the vitality provider has a considerably greater vitality density in relation to quantity in comparison with gaseous hydrogen. Consequently, extra hydrogen could be carried, which considerably will increase the vary and allows comparable efficiency of the car with that of a traditional diesel truck.
The event goal of the series-ready GenH2 Truck is a spread of as much as 1,000 kilometers and extra. This makes the truck appropriate for versatile and demanding purposes, particularly within the vital section of industrial quality long-haul transport. The beginning of sequence manufacturing for hydrogen-based vans is deliberate for the second half of the last decade.
On the identical time, Daimler Truck has been working along with Linde on the event of a brand new course of for dealing with liquid hydrogen: subcooled liquid hydrogen (sLH2).
The sLH2 course of will use greater than ambient stress ranges (as much as 1.6 MPa in comparison with standard LH2 at 0.6 MPa) and particular temperature management which avoids boil-off results and “return gasoline” (gasoline from the car’s tank returning to the filling station) throughout refueling. The method doesn’t require advanced information communication between the filling station and the truck throughout refueling.
General, the expertise thus permits less complicated filling-station ideas. The improved vitality storage density is because of the greater than ambient stress degree which will increase the hydrogen mass within the tank.
The businesses plan for the primary refueling of a prototype car at a pilot station in Germany in 2023. Daimler Truck and its companions are planning for a excessive degree of transparency and openness across the related interfaces of the collectively developed sLH2 expertise. The purpose is to collaborate with different corporations and associations as attainable to develop their very own refueling and car applied sciences that apply the brand new liquid-hydrogen normal and thereby set up a world mass marketplace for the brand new course of.
In terms of infrastructure for hydrogen filling stations alongside vital transport routes in Europe, Daimler Truck is planning to work along with the businesses Shell, BP and TotalEnergies. Daimler Truck can be a shareholder in hydrogen filling station operator H2 MOBILITY Deutschland. As well as, Daimler Truck, IVECO, Linde, OMV, Shell, TotalEnergies and the Volvo Group have dedicated to work collectively to assist create the situations for the mass-market roll-out of hydrogen vans in Europe as a part of the H2Accelerate (H2A) curiosity group.
