Truck & Off-Highway Engineering - April 2024 - 10

TECHNICAL INNOVATIONS
Komatsu integrates Modine's
EVantage L-CON BTMS in its new
20-ton electric excavators.
PROPULSION
Daimler and Linde reveal liquidhydrogen
refueling technology
Daimler Truck and Linde Engineering recently announced
sLH2, a jointly developed refueling technology for subcooled
liquid hydrogen. The companies claim that subcooled liquid
hydrogen allows for higher storage density compared to gaseous
hydrogen, enabling greater range, faster refueling and
improved energy efficiency.
" Zero-emission transport needs three factors: the right battery-electric
and hydrogen-powered vehicles, the required
infrastructure network and cost parity for ZEVs compared to
diesel trucks, " said Andreas Gorbach, board of management
for Daimler Truck AG. " With sLH2, hydrogen refueling becomes
as convenient as today's refueling with diesel. It takes
about 10 to 15 minutes to fuel our GenH2 Truck for a range of
more than 1,000 kilometers. "
" Subcooled liquid hydrogen considerably increases the efEVantage
plug-andplay
systems include all
necessary heat exchangers,
smart electric products,
wiring and hoses, as well
as a master controller
and tailored firmware,
to provide complete
operation upon delivery.
ficiency of hydrogen refueling systems, " said Juergen
Nowicki, CEO of Linde Engineering. " The required investment
is reduced by a factor of two to three and operational costs
are five to six times lower. The technology we have developed
with Daimler Truck will help pave the way for the development
of a robust refueling network, which is essential to keep
vehicles moving and supply chains intact. "
Fast fueling
According to the announcement, Daimler and Linde intend to
homologate sLH2 as a common refueling standard for hydrogenpowered
trucks. The first public sLH2 fuel station has already
been christened in Wörth am Rhein, Germany. The station will be
utilized for customer trials using Mercedes-Benz GenH2 trucks.
Refueling at the station reportedly takes ten to fifteen minworldwide.
The liquid-cooled thermal-management system from
Modine is said to work seamlessly with the eLion portfolio - including
a permanent-magnet synchronous electric motor, electric
inverter, onboard charger, DC-DC converter, power-distribution
unit, high-voltage cables with plugs, and a controller - to
maintain optimal battery temperature, efficiently cool power
electronics and ensure passenger comfort.
" With the increased shift towards electrified mobile machines,
there's a parallel need to manage the thermal output of those
crucial components efficiently, " said Zifan Liu, Bosch Rexroth
mobile hydraulics system engineer. " This partnership represents
a collaborative effort to effectively address that issue and present
end-users with the most productive machine possible. "
Modine announced in October 2023 that it was expanding
production of its EVantage thermal-management systems to
Europe. Beginning in 2024, the manufacturer's facility in
Pontevico, Italy, is producing BTMS and electronics cooling
systems for heavy-duty, commercial and specialty vehicle
manufacturers across Europe.
Ryan Gehm
10 April 2024
utes for a 40-ton truck carrying 80 kg (176 lbs.) of liquid hydrogen
for a range of 1,000 km (621 miles). Daimler states
that the sLH2 system lowers the required investment and operational
costs for a hydrogen refueling station and that liquid
hydrogen can be supplied reliably throughout Europe.
The system uses a pump to increase the pressure of the
liquid hydrogen, which sub-cools it to a temperature of
In 2023, the Mercedes-Benz GenH2 truck completed a 1,047-km
(650-mile) route without refueling.
TRUCK & OFF-HIGHWAY ENGINEERING
FROM TOP: KOMATSU; MODINE; DAIMLER TRUCK
Truck & Off-Highway Engineering - April 2024

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