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At CES this previous week, the trucking startup Nikola showed off a hydrogen-fueled semi truck, certainly one of its first ever constructed within the U.S. However the troubled firm with a convicted founder is just not the one participant today seeing a promising future in fuel-cell fueled large rigs. Daimler Truck has additionally lately introduced their GenH2 electric semi. GenH2’s motors draw energy from a gasoline cell that runs on liquid hydrogen, and Daimler has stated the car will seem on German roads by mid-2024.
The corporate has entered agreements with a number of firms which have fleet operations within the German area, the place Daimler successfully tested a GenH2 prototype on a observe and on public roads. By way of these early street checks, the corporate says they’ve discovered {that a} absolutely loaded GenH2 proved able to hauling its roughly 25-ton payload greater than 1,000 kilometers on a single fueling.
Beneath the Hood of the GenH2 Truck
The fuel-cell system of the GenH2 Truck, in keeping with the corporate, delivers 300 kilowatts. The truck additionally has a battery that may kick in an extra 400 kW briefly bursts for fast acceleration and hill climbing. The battery’s 70 kilowatt-hour storage capability could seem small, bu appears it’s enough for recycling kinetic vitality that’s transformed to electrical cost through regenerative braking.
Daimler’s GenH2 Truck, in keeping with the corporate’s preliminary street checks, can journey 1,000 km on a full tank of liquid hydrogen. Daimler Truck
Daimler, together with Linde and Air Liquide, the German and French multinational suppliers of business gases and hydrogen refueling providers, are profiting from advances in liquid hydrogen storage that yield notable benefits over utilizing pressurized fuel.
In its liquified state, extra hydrogen may be carried per unit quantity in comparison with room-temperature H2, which is a fuel. In consequence, vitality density is considerably larger, whereas smaller tanks on the car can nonetheless yield higher vary than is feasible than gaseous hydrogen. That house financial savings and enhance in vitality density let the truck haul a much bigger payload.
At specially-equipped liquid hydrogen filling stations in Wörth am Rhein and within the Duisburg space, cryogenic liquid hydrogen cooled to minus 253 levels Celsius may be pumped into two 44-kilogram stainless-steel tanks mounted on both aspect of a GenH2 semi’s chassis. Refueling may be accomplished inside 10 to fifteen minutes. In response to the corporate, high-efficiency insulation on the tanks hold the hydrogen beneath its ultra-low boiling level with out energetic cooling.
“We’re additionally proud to be offering Daimler Truck with among the vital refueling infrastructure and hydrogen as a part of the trials,” says Caroline Stancell, Normal Supervisor (Europe and Africa area) of the Hydrogen for Mobility division at Air Products, a U.S.-based industrial fuel provider collaborating within the challenge. “Our newest cellular fueling station for liquid hydrogen might be used for the challenge within the Duisburg space and may due to this fact function beneath actual situations.”
Daimler Truck’s Subsequent Steps
Because it has accomplished up to now with security applied sciences it has spearheaded, Daimler has made the recipe for liquid hydrogen (LH2) publicly out there. It’s now an ISO standard. What’s extra, the automaker plans to work straight with different firms to assist them develop their very own liquid hydrogen refueling and gasoline cell car applied sciences. The intention, Daimler stated in a press launch, is to “set up a world mass marketplace for the brand new refueling course of.”
Daimler Truck is already at work with Linde on one other new course of for dealing with hydrogen cooled to the tremendous low temperatures at which it takes the type of a liquid. The automaker says that course of will yield even larger storage (and thus vitality) density with simpler refueling in contrast with the LH2 course of.
Daimler is laying the groundwork for making hydrogen a extra broadly out there automotive vitality modality. The corporate says it is usually planning to work along with Shell, BP, and TotalEnergies to construct out hydrogen refueling infrastructure for main transport routes in Europe.
Pricing particulars on the GenH2 Truck had been unavailable at presstime. For comparability, Fleet Proprietor journal estimates a Nikola fuel-cell semi prices roughly $750,000—though Fleet Proprietor provides that incentives from the U.S. Inflation Reduction Act and California HVIP grants may, for some homeowners, minimize the associated fee again by $40,000 and $288,000, respectively.
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