Accelerating sustainable innovation: How the FIA is driving the way forward for hydrogen energy by means of motor sport
From the introduction of disc brakes within the Nineteen Fifties to the creation of the world’s most effective hybrid energy items with the 2014 technology of F1 rules, motor sport has at all times been a hothouse for development, a spot the place the pursuit of aggressive benefit relentlessly drives innovation.
The need to win is a powerful lever, however when it’s joined by an excellent stronger crucial – a societal demand for change – and boosted by the arrival of latest applied sciences ripe for exploration, that’s when motor sport’s means to push the boundaries of growth actually kicks into gear.
In June, that was demonstrated in Macau, with the ratification by the World Motor Sport Council of the primary ever set of technical and security rules for liquid hydrogen-powered autos. The foundations not solely defend drivers and groups by establishing a transparent set of requirements that permit for secure, high-performance use of liquid hydrogen (LH₂), in addition they function a platform to speed up innovation across the gas supply. And in a world the place the demand for sustainable options is more and more vocal, that want to innovate is especially robust, as FIA Head of R&D Nicolas Aubourg explains.
“The FIA is at all times looking for to turn out to be extra sustainable, to decarbonise motor sport, and hydrogen is presumably the final word expression of that since you put H₂ and oxygen from the air in your energy unit, and the one byproduct on the exhaust is water offered that the combustion course of is correctly managed and accomplished,” he says.
“We even have a number of producers which are extremely on this expertise. Presently, nobody is sort of certain if the longer term might be hybrid, electrical, sustainable gas, or hydrogen so analysis into hydrogen could be very a lot on the radar of corporations similar to Toyota, who have already got a hydrogen street automotive, the Mirai, and BMW who’re about to launch one. Hyundai has hydrogen fashions, Alpine has proven some demonstrators, and even Ferrari is on this expertise, as they see potential for hydrogen for use with inner combustion and never with a gas cell.
“Lastly, because the FIA, we’ve a really attention-grabbing set of instruments — with some championships additionally very fascinated by hydrogen as a future possibility. The ACO (Vehicle Membership de l’Ouest) and the 24 Hours of Le Mans, wish to be pioneers with this expertise and so they assume that there’s a method to make a step ahead and to vary motor sport.”
Knowledgeable Coalition
Initiated in 2021, the challenge first targeted on compressed gaseous hydrogen, the shape mostly utilized in street autos. Nonetheless, as growth deepened it grew to become clear that gaseous hydrogen introduced issues.
“If you wish to design, let’s say, a hypercar, which was our first goal due to the ACO’s robust curiosity, it’s important to have huge, fairly heavy tanks and that makes the design of a race automotive fairly difficult,” says Aubourg. “Additionally, the time for refuelling is lengthy—it’s very tough to do it beneath two minutes and even three minutes as a result of you will have a variety of modifications of temperatures, supplies. It is fairly difficult to cope with.”
With liquid hydrogen that includes larger vitality density and lighter storage necessities, preferrred qualities for a racing atmosphere, the choice was taken within the winter of 2023 to make the swap. There was, nevertheless, one further concern – this was largely uncharted territory with few earlier functions. Confronted with a clean canvas and a largely unfamiliar new expertise, the FIA took the novel step of looking for experience from each space of hydrogen energy, a transfer that introduced onboard some shock contributors and which additionally proved transformative.
“What we found with H₂ is that it’s a fascinating atmosphere, one actually made for growth and one with some very attention-grabbing stakeholders,” says Aubourg. “It was pure for us to contain Toyota and BMW as they have already got hydrogen-powered street vehicles, however then you definitely begin to have a look at who’s working with liquid H₂, and there may be one above all others – rocket science and the house business. And in Europe which means Arianespace and the Ariane group. They’ve an unlimited quantity of experience, so we looped them in, and they’re nonetheless very a lot concerned.
“Past that we’re speaking about industrial corporations similar to Air Merchandise to produce hydrogen and FORVIA for tanks… And fairly quickly, you start to construct a really attention-grabbing ecosystem of individuals.”
Aubourg additionally discovered there was a willingness to embrace motor sport’s potential to ship speedy advances.
“Folks working in rocket science, on street vehicles, on vehicles, within the military, on planes – for them motor sport is a liberating atmosphere. On this section we actually don’t care about reliability, about consolation. It’s solely about efficiency and solely about prototypes. With planes you want 10, 20 years to convey issues to market. In motor sport, it’s a five-year plan. For them, motor sport is a type of refuge, a closed atmosphere, and it’s pure growth.”
Constructing ‘bricks’
With a route of journey established and skilled help in place, Aubourg says the subsequent step for the FIA Technical Division was to assemble the ‘bricks’, the important thing technical specification and security necessities wanted to assemble the brand new framework.
Among the many bricks are secure storage and temperature management, weight minimisation, refuelling procedures. And it’s tank design and warmth discount which have occupied a lot of the method.
“The working level of liquid H₂ in motor sport could be very particular,” says Aubourg. “It’s extraordinarily, insanely chilly and the difficulty is that once you wish to preserve it liquid, it’s important to retailer it in one thing that’s remoted from warmth—any warmth. And if there may be one factor a race automotive generates it’s warmth. As quickly as you set it in ambient circumstances it begins to get hotter, and also you get what’s known as boil-off.”
Boil-off have to be fastidiously managed, and any ensuing over-pressure have to be correctly managed to keep away from leaks and potential flash or jet fires. Guaranteeing that LH₂ is saved sufficiently chilly and that pressure-control methods function successfully is of paramount significance
“The excellent news is that the answer is comparatively easy,” says Aubourg. “As quickly as you set what we name a vacuum jacket across the tank it may be very, very environment friendly. We’re additionally aided by the truth that in motor sport we don’t have to retailer the liquid within the tank for an extended interval, as you do in a street automotive, so we’re discovering some new options to have the suitable stage of isolation, the suitable dormancy time [where stored fuel evaporates over time, building pressure] and to make the packaging and the design significantly better for a race automotive.”
The FIA Technical Division has additionally collaborated with its sister Security Division to take the design into the true world by means of a sequence of bodily checks.
“We started testing in October and they’re ongoing,” explains Aubourg. “These include constructing a storage system with 20 kilograms of liquid H₂ on board, the utmost restrict we’ve specified within the rules, and the tanks overpressure system is examined, or we test what occurs when pipes are lower. The subsequent step is to destroy the storage system and to test what occurs when you will have a full liquid H₂ spill going onto the bottom.”
Weighing in
As with each motor sport class, weight discount is a main aim with hydrogen competitors and Aubourg is for certain that the analysis being undertaken to evolve the rules will yield huge real-world enhancements – significantly within the areas of tank and gas pump design.
“As an alternative of the 100 or 120 litres required for a race automotive utilizing fossil gas, with LH₂ you would want round 300 litres. We will discover some options when it comes to design, and we might additionally envisage extra hybrid options to minimize the LH₂ load on board. Plus, the burden of the storage system is reducing daily. The extra we interact with producers, the decrease the burden goes. Some suppliers have began to create composite LH₂ tanks. So, every part is reducing.
“One other concern is the burden of present LH₂ pumps. If you wish to discover a pump simply to lift the LH₂ to 70 bars to place it in an ICE, the prevailing pumps available on the market are, like, 30 kilograms. Examine that to a 500-gram fossil gas pump. There’s a lot to do there, however once more prototypes are being designed by the producers.”
Lastly, refuelling is one other “technological brick” the FIA engaged on as analysis continues and the rules evolve.
“There’s a protocol which is a bit advanced, however we’re working with TotalEnergies who’re accountable for delivering the LH₂ for future endurance racing,” says Aubourg earlier than explaining that present refuelling strategies will not be suited to racing.
“In Germany, some LH₂ refuelling stations for heavy-duty vehicles exist already and might refuel a car with round 1,000 km of autonomy in roughly ten minutes Nonetheless, for motor sport we have to go effectively past this efficiency: as a substitute of ten minutes, we have to obtain 40 seconds, which means a refuelling price of 1 kilogram per second. It’s difficult, however in accordance with first simulations it appears doable.”
This, for Aubourg, is the reward of making the primary set of liquid hydrogen rules – an enormous sandbox during which the potential to take speedy innovation to the race monitor and into wider society is a really actual prospect.
“it has been a very long time since I’ve seen that motor sport might be such a laboratory,” he insists. “And truthfully, work like that is increasingly more essential,” he insists. “Folks, particularly younger individuals, are extraordinarily involved by sustainability issues in motor sport, and past. Now we have to anticipate this. If we wish to race tomorrow, we’ve to do it. It’s our obligation – however a contented one.”
