Why Hydrogen-Powered Planes Will Beat Electric Planes

[@Cj-xl3jv]

I love how aviation is always talked about so heavily but the useless cruise ship industry is never mentioned. One ship burning “bunker oil” is equivalent pollution to 5 million cars per day but I guess that’s okay?…

[@scottbeers2749]

Sadly, most of the times cruise ships don't have to follow any emission rules once in international waters. We need to fix that.

[@joaodorjmanolo]

@@scottbeers2749 If Panamá canal and Suez canal start introducing emissions quota it'll work.

[@fourthdeconstruction]

@@joaodorjmanolo gee! What a solution even if you close both canals that won't make a difference in emissions. Also I like to see what panama says about closing or restricting their canal for the environment's sake.

[@alfeim12345]

Yeah, media and politicians like to focus on things that will bring so much inconvenience to people.

[@papasquat355]

They are moving to CNG, so your point will be moot soon.

[@xlynx9]

I'd like to see a similar report for the future of shipping and sea transport.

[@Robert-cu9bm]

nuclear is the best option

[@tonyb4773]

Best thing about shipping is that, as 40% is for fossil fuels, only 60% will be left to clean up...

[@anonymousasia8187]

What> sot Nitrous Oxide emissions and lung disease in preference of carbon emissions and sunburn?, The solution is with US. We stop flying. The flight companies won't stop the supply unless the demand disappears. so it is the job of the public to renounce air travel to bring change, not the job of the companies to reduce emissions. It is us the people doing international travel all the time that are the root of the problem. Demand creates supply

[@arc4055]

You know you won't believe me but shipping once was a completely green industry.

[@jepleas9159]

Maersk is building green ships to test new tech.

[@Fey418]

Well CNBC, you pick a bunch of people who happens to be working on hydrogen fueled engines to advocate for hydrogen powered airplanes and give an impression that there really is no other way to get to net zero emission in this industry...

[@michaellorton8099]

Former USAF flight surgeon and undergrad chemistry major here. Hydrogen has a very low energy density per volume and must be stored under immense pressure and/or low temperatures in order to have adequate energy to power anything other than very short flights. That requires very heavy, very expensive alloys. The very tiny molecule hydrogen literally seeps into metals and other materials causing “hydrogen embrittlement” and accelerating material fatigue. Extremely low temperatures make all materials less malleable and more prone to sudden, catastrophic fracture. Metals are bad, but plastics and other polymers can be even worse at low temperatures. Maintaining the necessary low temperatures adds even more weight and energy expenditure not directed to flight. Air pressure decreases with altitude magnifying the material stresses even more. The repeated ascents and descents under such immense pressure changes induce accelerated material fatigue. Temperatures also drop precipitously at altitude. H2 fuel cells and their platinum or iridium catalysts do very poorly at low temperatures. Direct combustion is more plausible, but H2 is incredibly explosive if a leak develops. Shut-off valves work well with liquid jet fuel, but much less well with gaseous H2 under immense pressure. All of the fuel lines and valves must be able to withstand all of the radical changes in pressure and temperature as well as the bulk H2 storage tanks. All of this adds immensely to weight which in turn stresses the non-fuel portions of the airframe and reduces flight efficiencies. We perform non-destructive stress damage analysis on current planes. This would needed to be performed even more sedulously on hydrogen planes. More delays and costs. Hydrogen-powered ships-yes; hydrogen-powered planes-I respectfully have my reservations. I hope they prove me wrong, but I heard none of these issues addressed to any significant degree. I am willing to be persuaded. Best wishes.

[@SprakanaKerum]

I love your comment. You disagree with the thesis of the video, provide adequate reasoning why, listed your former profession/education without any appeal to authority, but are willing to be proven wrong if something new comes along to refute old knowledge. Personally, I think China is on to something with what I heard was ceramic or nano-ceramic lining for hydrogen tanks (I might have misheard, or gotten a bad translation). It's time to hack the Chinese to listen in on their scientific research, get some payback for their decades of IP theft of US secrets

[@Steven-p4j]

You are correct in what you say, however, the developments for storage include carbon fibre encapsulation, which has demonstrated very good qualities.

[@tomarmstrong1281]

All true and correct, however technology marches on and is unstoppable. It is possible that with aid of AI new trypes of impermeable lattices could be developed to counter the seepage properties of H2.

[@Kazilikaya]

Jet fuel has an energy density of 43.5MJ/kg, hydrogen has an energy density of 142MJ/kg. Energy density in terms of Joules per Kilogram(mass) not Joules per volume. The way to do it without insulation is to use refrigerated tanks that operate on the ground and switch off in mid flight. That way as the liquid hydrogen boils it produces enough pressure to travel through the fuel pipes to the engines and doesn't need to be pumped. Certain metals, notably aluminum are resistant to hydrogen embrittlement. Now you may say that aluminium has low tensile strength but you can use a high strength alloy such as inconel with an aluminium coating to protect against embrittlement.

[@michaellorton8099]

@@Kazilikaya Apparently neither are you. If you bothered to actually read the comment, the mass-volume problem with hydrogen fuel is exactly what I addressed. Very low temperatures needed to concentrate the hydrogen and reduce the volume severely impair Young’s Modulus and make all alloys much more brittle. The tanks are subject to cataclysmic fracturing at exactly the time external air pressure is falling as the plane gains altitude. If the plane is altitude restricted to reduce hydrogen tank rupture risk, air resistance severely impairs the fuel efficiency. Having refrigeration units on the plane to keep the hydrogen liquified impairs the thrust-to-weight ratio no matter when you turn them off. If the hydrogen is combusted, the heat and rapid expansion of the liquified hydrogen place immense stress on the pipes and valves with such extraordinary temperature gradients in the metals. If the hydrogen uses catalytic fuel cells to produce the thrust, the temperature gradient problem in the metals is reduced, but fuel cells are notoriously unreliable at extremes of cold. Yes, very expensive alloys help, but are, as stated, very expensive. Even very expensive alloys are subject to metal fatigue and must be non-destructively tested more frequently-again driving up delays and costs. I don’t know where you got the notion that aluminum is not subject to hydrogen embrittlement, but that is just demonstrably wrong-respectfully.

[@mattzerega]

I'd like to see a documentary like this that includes some explanation of fuel storage and transportation 'why' and 'how' -- including descriptions of storage container weight, materials and construction; compression and cooling equipment design and costs (up-front capital, O&M, energy (kWh) required to run it), and; transport and storage compression pressures -- in order to help viewers understand why a fuel with, "...the highest energy per mass of any fuel..." has to be compressed to 13,000 psi or cryogenically cooled before it's useful in an aircraft, car or truck. This would help viewers appreciate what it actually takes to achieve and sustain 13,000 psi or minus 425F, and the challenges created by such pressures and temperatures during transporting and storage as compared to traditional liquid fuels.

[@robuandrei5969]

Because the volume occupied by hydrogen is extremely large and so it would require extremely large tanks which might make it difficult to maintain the center of gravity of a plane especially when steering, storing it in liquid adds even more challenges

[@dentonyoder4652]

While H2 is energy dense by mass, by volume it leaves much to be desired. H2 also needs to be either cryogenically frozen or highly pressurized in storage which drags on its round trip efficiency. H2 could still play a big role in green ammonia production, which has greater energy density by volume without the previously mentioned problems of h2. The holy grail in my view would be developing a scalable and cheap direct ammonia fuel cell (vs having to crack the ammonia back to H2, which again, drags on efficiency).

[@jenniferperry87]

This honestly... Or if all else fails, we could develop e-fuels for use in aircraft and shipping, but my guess is the loss in efficiency would be higher than for ammonia.

[@TheBooban]

@@jenniferperry87 yes and we’ve seen it is only good at postponing space launches. SpaceX abandoned it. Too finicky and dangerous to be practical.

[@IlIlIlIlIlIlIlIl-v9h]

Planes don’t carry fuel for a round trip. That’s called ferrying fuel and is only done if fuel isn’t available at the destination.

[@fourthdeconstruction]

I'm more worried what they left out. 1. Hydrogen production or the production of black Hydrogen which results in more pollution since it is the only cheap way to produce hydrogen. 2. hydrogen cells use rare metals like iridium and pt which has become really really expensive and only a few countries dominate the market. 3. Storage, due to the hydrogen and the way it bonds with metals all pressurized tanks have to be specially coated which makes them really expensive and heavy. So it seems that hydrogen in aviation has a lot of issue to solve.

[@asphere8]

I don't think that we need to worry about the round-trip efficiency of H2 as much as we do. The extraordinary energy density by weight is the most important part of it, enabling its use as a green fuel in aviation and long-haul trucking. An electrolysis-based production process can easily be run on the excess power generated by solar and wind plants that might otherwise be wasted, making the round-trip efficiency much less important.

[@SuperYellowsubmarin]

No matter if the medium is battery, hydrogen, or whatever; it is only a medium. We need a massive increase in non-fossil electricity capacity to power all of these vehicles, and it needs to start now because it is going to take a while to get there. This needs to be addressed.

[@agps4418]

i find it worrying that no one seemed to put spotlight on how the Big Oil is doing. The world is trying to rob them of their trillion-dollar profits. i don't think they'll just stay silent. i am worried because i believe if Big Oil isnt scheming things behind the scenes, i'm sure all-non fossil fuels will be successful. energy is our constant need.

[@someotherdude]

That's actually NOT what is needed, we already have overcapacity of renewable power at least in some parts of the country. Like it or not, we need backup fossil fuel power for windless/cloudy days or we need affordable energy storage, which is not looking viable yet. So we are being forced on an arbitrary time table towards power shortages as a way of life, along with absurdly expensive power.

[@jimmcneal5292]

Non-fossil energy sources either don't work very well or are potentially much more dangerous for environment than fossils

[@SuperYellowsubmarin]

@@someotherdude We do need base power as you say, and since fossil will only last so long, the only other viable option is nuclear ...

[@agps4418]

@@someotherdude imagine that.. being so stupid thinking that humanity need oil forever and nothing will ever change..

[@kevingw5379]

HYDROGEN being the smallest atom in the universe is EXTREMELY hard to store because it just leaks from containers, that and the fact that hydrogen is also extremely flammable which means every leak has the potential for disaster.

[@heinedenmark]

You can store it without a loss today. And it's very hard to ignite because it vapourise as soon as it comes in contact with the air. These people are not stupid.

[@kevingw5379]

@@heinedenmark Hydrogen storage technology has gotten to the point where it can be safely used in motor vehicles where the danger of impact and damage to storage tank is higher than that of aircraft. However, hydrogen tanks in airplanes are exposed to altitude which means large pressure differences to deal with and higher risks of failure and malfunction. Plus, aviation approval and certification of hydrogen fuel for use in airplane is a real nightmare that will take a long time, because any new aircraft technology has to have high redundancy and thoroughly verified to be safe.

[@internetfolks-e7c]

Not in the liquid form

[@kevingw5379]

@@internetfolks-e7c Storing hydrogen in liquid form is a viable option with one drawback, it requires storage tanks to be cooled to very low temperatures. In aviation world that means increased size, weight and complexity which is bad news because increase in weight alone is enough to not even consider that option. The only practical solution is combine hydrogen gas with another molecule to form a bistable compound which can be broken down to release the hydrogen when needed. However that is technology is still in its infancy and a lot of research and development needs to be done.

[@internetfolks-e7c]

@@kevingw5379 not at all. The hydrogen tech is not like what you think.

[@Hanad3]

cnbc contents are getting better by the day

[@ExcessumGaming]

Agreed. They used to be so biased and one sided. Right now they are WAY better. 100% sure they got new editor!

[@lixue2023]

You are a veteran follower

[@yousuck9954]

​@ExcessumGaming 🤣🤣🤣if that's not sarcasm you are an idiot 😊

[@luimackjohnson302]

Brilliant Coverage in Hydrogen usage in aircraft! Thank you for sharing this important topic in in aviation fuel alternatives. Greetings from Madang, Papua New Guinea!

[@moviesunified6746]

One thing is true, Hydrogen is potentially the best option. But thats when you just see in context on a fuel to engine. But when you see supply chain, whole big cargo planes , Hydrogen generation and transportation Then you realize its still in infancy stage.

[@neeljavia2965]

Perfectly summarised.

[@bru512]

Not true. Batteries are the best option. If you really want to use chemicals, better to use methane.

[@eaaeeeea]

We will soon get abundant renewable energy, so creating hydrogen from water will get cheap. It seems these new companies could gain a lot of market share from Airbus and Boeing much earlier than these two legacy companies realize their plans for sustainable planes.

[@bru512]

@@eaaeeeea When is soon?

[@anonymousasia8187]

Tes plus this is a paid placement posing ads news which is why they dont tell you Hydrogen produces Nitrogen Oxide which causes respiratory disease.

[@shauny2285]

Hydrogen powered aircraft was investigated back in the 1970s. It wasn't economical back then for large aircraft and I doubt it will now. One of the drawbacks was storing large quantities of hydrogen at an airport.

[@stoney202]

Yes but in the 70s it was competing against aviation fuel. Now we've mode on quite a lot of progress in materials science and it's competition is a very expensive inefficient storage medium in batteries.

[@zulhilmi5787]

Electric vehicle also start around early 19s and dies out after that. Now it's increased in demand and competitive than the fossil fuel. Things is fossil fuel company are so powerful that they can monopoly the market to stop any competitor in the market and hinder humanity from going forward. Only now with the present of Internet that people start to realise how bad it is that this kind of company existed. Judging from your statement I can say that fossil fuel company do a good job in setting the mindset of general people

[@rscott2247]

Jetliners also need strong tanks to store the hydrogen and I don't believe there light ?

[@JohnSmith-pn2vl]

@@stoney202 nope, physics never change, nothign changedm hydrogen has 0 advantages over any other fuel, it is absolutely terrible at everything, especially energy storage. it doesnt even remotely come close to even fossil, and heck, hydrogen is fossil anyway. 97% of worlds hydrogen is made with gas reformation from natural gas because its insanely cheaper than electrolysis. this is one of the many hundred reasons why not to use hydrogen for anything but making steel by burning it. battery electric will power everything, hydrogen still is nonsense.

[@suminshizzles6951]

I wonder how much of that decision was down to the oil industry saying that it is not feasible. They probably came up with their own "studies" stating that it is " not yet up to scratch", thereby ensuring that oil gets burned another 50 years before people start freaking out.

[@Ishmam...28]

That is not a ATR-72 !! Thats a dash 8 !!

[@johnc9658]

You beat me to it! 😂 Research CNBC! It’s not hard!

[@airhabairhab]

Yeah I think the plans are to focus on ATRs but the rest bed is dash 8

[@pamier997]

Yep I was just going to comment that 😂

[@stuarthirsch]

Aviation is where hydrogen makes the most sense to start a hydrogen economy. Next would be replacing natural gas with hydrogen. Then hydrogen for trains, busses, trucks, and finally passenger cars. Hydrogen is a great way of storing and transmitting energy. There are however a number of technical, safety, and economic hurdles to overcome. Hydrogen can be produced from water and electricity. Renewable, nuclear, or even fossil fuels. Thus hydrogen could ultimately be not only the cleanest fuel, but also the cheapest fuel.

[@io9883]

Quels sont les avantages de ce moteur par rapport aux autres moteurs à essence existants : peut-il être plus rapide (plus de 1 500 kilomètres par heure), avoir une autonomie plus longue, être plus doux et plus silencieux ? Puis-je transporter un tonnage plus lourd (par exemple, deux fois le tonnage du Beluga XL d’Airbus) ? Les batteries peuvent-elles atteindre une puissance de 20 à 50 mégawatts tout en conservant des dimensions appropriées ? Pourrait-il être plus automatisé/plus facile à entretenir et à gérer ? Existe-t-il une capacité de production en volume dans la région européenne ou dans la région de l’Atlantique Nord ? Nous espérons que les ingénieurs et les équipes auront des objectifs clairs et éviteront de concevoir des produits ayant un positionnement difficile sur le marché et un développement lent.

[@GowronSaves]

CNBC does top-notch documentaries, interesting and well researched. Ammonia is really the key here...too bad there was no mention of it (though this doc was focused on H2)...NH3 is a better H2 carrier than liquid hydrogen....about twice as much and its in liquid form can be held at a much lower pressure about 10 bar (while H2 gas is at 700 bar)...that's the real future imo. Ofc NH3 is a toxic substance, so we'd need to handle it better than we do gasoline (as it can cause blindness), but for decarbonizing, it's the pinnacle for an alternate energy source.

[@wakannnai1]

I've seen some research into NH3 fuel cells. It's efficiency is at 62% vs hydrogen at 70%. I'd say it isn't too far away. Ammonia fuel cells seem quite interesting as we already have a pretty strong Ammonia production pipeline.

[@GowronSaves]

@@wakannnai1 Ya that's pretty amazing, though I've heard NH3 FC's are SOFC's that work at a very high temp requiring special materials...so more costly. The other option is cracking the ammonia to H2 and using in a traditional pem fuel cell. If I recall SOFC's are also multifuel, so you can run on other sources as well...but a direct NH3 fc would be best...still cracking it is not a bad alternative.

[@fadlya.rahman4113]

In a way, even hydrocarbon is some kind of battery. Plants absorb the energy from the sun and convert it to carbohydrate as energy storage. When the plant died they got buried deep overtime. The fibrous part was petrified, and the carbohydrate was refined by pressure and heat into hydrocarbon.

[@1marcelfilms]

woah you just finish first year of high school ?

[@fadlya.rahman4113]

@@1marcelfilms You'll be surprise how many "graduates" don't know about this.

[@robinstevenson6690]

Excellent report!

[@OM-bs7of]

Electric Trams are probably the ultimate form of green transport as the batteries are not carried on the vehicle itself but soo much focus is being placed on electric cars 🤷

[@whoisthatkidd2212]

Yes, but most Americans do not understand how trains work as our cities are built to encourage car use as much as possible.

[@PistonAvatarGuy]

Electric trains don't really even need traction batteries.

[@SlimShady_1]

8:04 that’s a Dash 8 not an ATR

[@danieltyson2865]

Excellent and intelligent coverage of the prospect and hope.

[@dancinboi89]

Can’t they target the private jet industry as a starting point? Private jets carbon footprints are much heavier per person than a commercial jet. It also gives them the opportunity to create more evidence and experiences using the new fuel type so it gains traction and becomes more standardized. Just a thought

[@captsorghum]

This was my thought. That way the billionaires and politicians can jet around to their climate summits without generating negative press.

[@johndelphiaiii7623]

I like the idea of a combination of two fuels: Catalytically derived, cellulosic or algae biobutanol for landings and takeoffs; Then a switchover to ammonia (NH⁴) for cruising. Might be the easy & quick low CO² fuel path. I think speed & 'anti-absolecence' is important to avoid the increase in CO² from the manufacturing of new aircraft right away.

[@chi-jenyang9752]

While hydrogen planes will beat electric planes, jet fuel planes will beat hydrogen planes.

[@HandyMan657]

We were onboard an H2O boat not long ago, interesting stuff, exciting.

[@brentgroenhuizen617]

No way I'm going in an electric plane. No way. These cars don't move when they fail. Absolutely no way.

[@drjones694]

This is great I was wondering when something like this would happen

[@FrozenDung]

Battery electric works for short haul flights Hydrogen for long range

[@SW-fy8pq]

it is not about environment alone, it is more about cost, what is the point of paying 5 times more for hydrogen power?????

[@701983]

So many comments referring to the airship Hindenburg! Which wasn't a plane, but an airship. Which didn't use hydrogen as a fuel, stored in robust tanks, but as a liftig gas in giant "balloons". It's true, hydrogen is an inconvenient energy carrier and requires high safety efforts. Nevertheless, the comparison of hydrogen powered planes with airships with hydrogen as a liftig gas is nonsense!

[@colmclancy1981]

None of the above will achieve the long haul capability that's on the market now.

[@tibsyy895]

Boeing and Airbus should use the new propeller types to be even more efficient! ✌️

[@MinhTháiTrần-o8i]

Những phương tiện hàng không tốc độ cao rất cần thiết cho nhu cầu thu hoạch kiến thức trí tuệ ngoài không gian hay lắm, cảm ơn video chia sẻ của bạn chúc bạn sức khỏe và hạnh phúc.

[@nigratruo]

OK, I'm an engineer and that will not work in the next decades, AT ALL. You need an insane amount of fuel cells to get enough power and that WILL BE EXTREMELY expensive. That will quadrupple sixtuple the ticket costs, when planes get a multiple price increase. There is currently no H2 industrie that delivers H2 in large quantities and the one that exist is even more expensive than gasoline and oil, which is already too expensive.

[@Negev-Israel]

Electric motors may be able to beat the conventional piston engine, but it is no match for jet engines. Jet engines can beat electric motors within a blink of an eye

[@nigratruo]

@@Negev-Israel No, you are mistaken my friend: jet engines are even worse than piston engines, you get a lot more blow by (fuel that is not used, but just blown out), everything you can do with a turbine with combustion, you can do 4 times more efficient with a electric motor, they have more torque, they are almost 100% efficient (piston engines only reach like 20%) and they don't need any maintenance. That is by the way why turbines are preferred to pistons: much less maintenance. You unfortunately can't see this and have no vision for the future where things change, all you can see is the status quo. You are unable to better or change the world due to this. The most powerful engines in the world are not turbines and they are not piston engines, but electric, because electric has no size limit how much power you can put in them and that is why in the world today, most powerful engines are all electric.

[@Negev-Israel]

@@nigratruo perhaps you should touch grass. You are using the same logic of comparing electric cars with gas cars. An electric car can win against gas car, hands down. But in aviation, things are different.

[@Negev-Israel]

@@nigratruo EDF or electric duct fans are the alternative for jet engines. They are not able to produce enough trust as a jet engine of a similar size. Also, the efficiency of a jet engine increases with increase in speed. Not to mention the heavy battery. The only advantage and EDF has over a jet engine is the instant acceleration, responsiveness and fine tuning. The efficiency of an electric motor might be higher, but it will go down with increase in weight due to bigger motors requiring a larger battery, which requires more thrust and in turn draws more current and this cycle of inefficiency continues. Fun fact: the starter of a jet engine is not an electric motor because of its heavy weight. Instead, it uses an air turbine starter.

[@joaodorjmanolo]

Commercial aviation is maybe the only one industry people shouldn't mind. Btw, private emissions aren't mentioned on this, they pollute more per person than commercial ones. Will they be regulated as well? No... ? Yeah, as I thought...

[@nick_0]

they will be regulated, their per person emissions dont matter as much since their total contribution is low, that’s why commercial craft are priority to change first

[@agps4418]

this is just one sector, trying to do better, when they can do better. who are you to say they shouldn't? oil/gas employee?

[@joaodorjmanolo]

@@agps4418 cause it'll get expensive. Also, security reasons.

[@hafizuddinmohdlowhim8426]

I hate when media tries to make it hydrogen vs battery when they are completing each other.

[@sunilalexandercampianregis8874]

Hurrah! you have finally won the race

[@Tribipentium325]

If electric planes want to beat hydrogen-powered planes then they should've start research about a megawatt battery. Ion battery use lithium or sodium, what will happens if a proton battery or neutron battery exist? Are they using nano composite?

[@zanzillahsaruji9966]

Sarawak state in East Malaysia is building the biggest Mathenol plant in South East Asia to produce hydrogen. Sarawak also producing SAF from Microalgae for clean aircraft fuel.....this is the safest and clean environmental power for the future....

[@Dr.Gehrig]

Cool video. Unfortunately, I suspect hydrogen will take longer to supplant the current air travel logistics than declared, but it will eventually happen. In the nearer term though, I suspect some mix of biofuels and carbon neutral synthetic efuels will be what initially decarbonizes air travel before hydrogen tech is able to become a superior technology. To get the ball rolling I suggest legislating that private jets be LEGALLY REQUIRED to use carbon neutral fuels, be they biofuels, efuels, green hydrogen, direct electricity, or something else. This will help stimulate the market and development to make these technologies become more available at larger scale by having those who CAN pay the premium, do so in the early days.

[@BuellersBack]

Why Electric-Powered Planes Will Beat Hydrogen Planes is the more accurate statement.

[@shinyshinythings]

Under the Challenges section, I was hoping for some realistic discussion of safety in the storage, transportation and use of hydrogen. Another thought was that adapting regional aircraft to use hydrogen is a less effective emissions control measure than simply eliminating short-hop regional commercial flights via regulations, like France has done, and Spain is considering doing. Both have excellent train networks that can provide equally efficient (in some cases more efficient) regional travel options.

[@Dondo_Golden_Rose]

Yeah we could also punish oil and fracking companies. They are the biggest contributors.

[@mpaul4584]

No co2 out of the exhaust, just water vapour, the most potent greenhouse gas there is.

[@Negev-Israel]

Electric motors may be able to beat the conventional piston engine, but it is no match for jet engines. Jet engines can beat electric motors within a blink of an eye

[@mlester3001]

As a child in the fifth grade in the 1960s I learned from a science textbook how to make hydrogen and oxygen from water using electrolysis. Since then I have always wondered why not just connect a solar cell or windmill generator to a water electrolysis device and use wind or solar energy to make hydrogen. I guess there are technical reasons why this won't work. This video mentions that storing hydrogen as a gas takes a lot of room and storing as a liquid requires super cooling equipment. Hopefully scientists will come up with an answer to these issues and soon.

[@grumblewoof4721]

I know it's not the same technology, but when you say flying with hydrogen, I just think Hindenburg

[@reggievonramstein]

The source of the explanation as tho why hydrogen will beat batteries for aviation seems to be “trust me bro”

[@Drizzelinho]

hahah Exactly

[@tibchy144]

HYDROGEN PLANES ARE ELECTRIC PLANES. HYDROGEN PLANES ARE POWERED BY ELECTRIC MOTORS. ELECTRICITY IS PRODUCED IN HYDROGEN FUEL CELLS.

[@CCK0707]

Good idea! You travel in, but not me !

[@risrubia4163]

your reporter says ~90% of hydrogen are produce using non renewable energy. Well that is in the US. In other countries they are 100% renewable.

[@whut9245]

Worldwide just < 1% is produced using renewable energy. Most hydrogen production plants are industrial for gas purposes and use natural gas or coal

[@Kuwandi]

Where we come from we do teleporting ….saves a lot

[@Atipat12]

AMAZING !!!! 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@emoney822]

Hydrogen plane , semi trucks to the moon 🌚

[@aigslmnop]

remembered very old tech from a slide or three in a university lecture last year the lecture was delivered in the nineties itself a fossil probably from the first big oil crisis - magnetohydrodynamic dynamo (top cycles for rankine turbogenerators) and it's possibly to speculate it can top a fuel cell power plant too via water splitting it seems because uranium fission power plant likely (to infer) were flew earlier and in a shorter time possibly than hydrogen fuel tanks since to quote the video it is so difficult to keep cool and compress enough to reduce drag but a sole mhd dynamo might one day do the whole job who knows it would be one area for synfuels you could say to balance carbon budgets

[@53022347]

Brazil has the Macaúba tree that produces 8 to 10 times more biodiesel (6/8,000 liters/ha) than soybeans or sunflowers. This biodiesel in the refinery is transformed into aviation biokerosene. If Brazil's 130 million hectares of degraded pastures were reforested, they would produce more than 1 trillion liters of diesel fuel per year. Africa can also produce as much with its 300 million hectares available.

[@grecoconduris6716]

Hydrogen combustion isn't emissions free though, because the atmosphere isn't pure oxygen.

[@RhythmBoy]

Also, nobody seems to be mentioning the enourmous danger of carrying huge battery packs in an airplane. we have seen battery cars combust in flames instantly but you have never seen a Toyota Mirai combust in flames out of nowhere. That's because its hydrogen tanks are reinforced in a matter that it can stop a small bullet, something not even gas tanks can do.

[@clavil0709]

Actually gas cars burn around 10 times more than Lithium NMC batteries and 100 times more than Lithium LFP. The comparison isn't completely fair because the gas fleet is much older that EV's.

[@_Stupid_Idiot]

planes fly with hundreds of batteries onboard all the time. passenger’s phones, laptops, battery banks, you name it

[@abhishekgarg5286]

Sun is our Hydrogen daddy. It's got all you need. To get green hydrogen, you need to extract it from center of the Sun. First build a tunnel to the Sun's core. But that can take a while, or we can just wait for the Sun to become a Red giant and then Earth will become a part of Sun's corona and then it would be easier to dig into the Sun, so we can save money from not having to transport all the extraction equipment to the Sun, as the hydrogen daddy will be coming to us.

[@charles-andremorisset1237]

Not discussed is that burning hydrogen in a conventional turbine engine requires oxygen. To save weight, that oxygen will come from ambiant air which contains nitrogen. The result of that combustion will also generate not desirable NOx

[@grahamstevenson1740]

Now make a properly reasoned documentary about the issue but this time EXPLAIN THE COSTS instead of papering over the cracks and being unrealistically optimistic !

[@backyard4465]

They're going to need to test using the "toroidal propeller" to get the efficiency up! search youtube on the quoted.

[@tedg1609]

Airline hydrogen technology is just blowing up !

[@melihaksoy7430]

If I was a scientist, I would make a research about how to overcome gravitational forces of the earth by deflecting or changing the direction of gravitational forces to enable aircrafts fly with a minimum amount of fuel. 1. Define gravitational forces. How can we reverse it or cancel it? Can we build a machine that could make it possible? 2. Is that possible to find a material to isolate or deflect gravitational forces 3. Can we convert gravitational forces into a power source? I'm quite sure that somebody could take the challange & make it possible, like Wright Brothers. If we can convert sunlight into electricity by using solar panels why can't we achieve creating weightlessness by harnessing gravitational forces?

[@Paul-e9x4h]

Mungkin kita harus memikirkan bahwa permodelan dalam susunan kinerja peralatan mempunyai rangkaian yang baru dan mungkin berbeda dari yang sebelumnya . Ini suatu konsep rekayasa baru yang bisa membuat para peneliti tidak terfokus pada permodelan yang sudah ada saja melainkan pembaharuan model dan rangkaian sistem yang harus mulai dirubah

[@lynnmalmberg2822]

Well if it catches fire the passengers won't have time to be afraid.

[@matsjohansson5664]

Effectivity on electric motors are approaching 500kwh/100km, wich are the tippingpoint aerotransport and without the risc of hydrogen!

[@joshuagranger2416]

Very interesting

[@prashanthb6521]

I hope shipping goes Hydrogen even sooner than aircrafts.

[@sigbingaming]

We will have rain wherever a plane pass through.

[@snorttroll4379]

ground hydrocarbons is sustainable in the sense that it is no problem to burn it. but we do need cheap new energy too.

[@darreneisner5162]

Cause air flight and hydrogen have had such a great relationship in the past.

[@jjj2856]

seems like Elon Musk was pretty dumb when he dismissed hydrogen for energy storages

[@Anomize23]

Someone underestimated the Japanese

[@gregmarsters2434]

There is no "extra electricity". Any power diverted to manufacture "green hydrogen" means less power to offset power generation by burning fuels. As converting energy into a chemical fuel to be later converted back into energy elsewhere (especially hydrogen) represents major loss of efficiency it only serves to increase net CO2 emissions over if power had been directly used by the energy grid. Also, before all this money gets dumped into hydrogen as an energy carrier I'd like to see estimates of how much hydrogen leaks into the environment during its production, transportation, storage, and conversion. Leaked hydrogen quickly rises into the high atmosphere and depletes the Ozone layer and creates the greenhouse gas water vapor in the high and normally dry layers of the atmosphere.

[@sjoer]

Water vapor is also an emission. With the current gains from renewables, we will never have enough power to generate enough hydrogen. Our prices for electricity will skyrocket and meanwhile we neglect nuclear technologies for blue sky technology. I'm from the Netherlands, here on our best day we totalled just over 400MW from renewables. A single MSR will do the same, 24 hours per day, seven days a week and for 50 years. Why are we investing billions in renewables when the gain from a single billion MSR is very clearly cut: better.

[@sjoer]

So at any time there are about 10000 planes in the air, lets say with a 1MW power source per plane we can only deliver 5% of the power required to keep all these planes in the air. So this idea might sound nice, it is completely unrealistic if we keep using renewable energy sources.

[@kiefershanks4172]

Lots of "experts" in the comments here with loads of experience working with hydrogen lol

[@RCSVirginia]

Hydrogen up in the air! That will certainly light up the sky!

[@53022347]

Hydrogen is five times lighter than gasoline and has twice the energy per kg. The hydrogen on the plane will need a tank five times bigger to do the same thing as kerosene

[@kylerider7125]

Hydrogen isn’t perfect but it’s a better option than electric

[@amosbatto3051]

Hydrogen still emits the water vapor to form clouds which is the majority of the radiative effect of aviation. Switching to green hydrogen will eliminate CO2 emissions, but it doesn't solve the greenhouse effect of aviation. Battery electric planes are the future of short range flight, since they will be so much cheaper to operate than hydrogen planes. I suspect that long range aviation will be dominated by battery and biofuel hybrids, because they will be cheaper to operate, and their radiative effect will be lower than hydrogen planes.

[@jamesdellaneve9005]

Thats why C02 is a minor gas for warming. It reflects around 90% of the same frequencies as C02. The fear of catastrophic warming is a fantasy.

[@mauriciocastro6363]

The problem is not the hydrogen in the form its consumed in the aircraft, which it true is zero emisions. The problem is the technlogy now a days to produce that hydrogen in that form. That proces is pollutant, and releases toxic gases to the atmosphere. We need to wait another 10 - 15 years to see technologies that will ensure clean environment through the complete lyfe cycle of hydrogen.

[@Charles-Darwin]

1937 - Hindenburg incident was attributed to atmospheric electrical discharge and a small leak of H

[@rk5634]

This guy really doing an interview with his A20s... on the ground.

[@tho63723]

“flying on hydrogen will be more expensive than jet fuel, unless there are carbon taxes that increase the price of flying with current jet fuel” this sounds like we should stick with jet fuel unless we stack the deck.

[@havoc23]

I would name my Hydrogen Plane the "Hindenburg II"

[@isaacennison7678]

The main issue is the production of hydrogen. The conventional method of hydrogen production involving the use of methane and fossil fuels ends up producing CO2 as a byproduct. The alternative method of using electrolysis of water is very expensive and a net energy sinking process because the amount to energy required to split water is higher than the amount of energy released in burning hydrogen if the efficiency of the entire process is taken into account.

[@sv6k0a39]

Hydrogen molecules are so small. They are prone to leaking out of hoses, pipes and connectors and storage tanks.

[@Aeronaut1975]

They leak right through most metals, plastics, glass and wood. It's also insanely explosive and expensive to compress.

[@laughingvampire7555]

the problem with Hydrogen is the cost in energy and other resources in producing pure hydrogen, storing it, distributing it, so all the advantages of hydrogen quickly evaporate when you add up all the cost. We need research on reducing the cost of all of this before we can make good use of hydrogen.

[@mwaririlyrics]

Will they be quieter? Because we could really use a less noisy cabin. Having noise canceling headphones for 16 hours isn't fun

[@marcelliedts5170]

Game spoiler. This will work on experimental planes but never in real life.

[@andremota247]

create a hydrogen factory on space using solar energy and space mining, pollution ,lack of resources ,war ,personal interest GONE FOR GOOD ,there's is abundance of everything we need in space, we just have to design a space factory XD

[@cleanitup_pls7893]

Why is it logical to consume cheap electricity to produce hydrogen and use more energy to change it to a liquid and then convert it back to a gas to burn it in an inefficient engine to produce electricity?

[@jb5music]

That's cute... The little hydrogen engine bolted on the giant 4 fossil fuel engine A380. With the numbers "2035" stamped on the screen 😆 Is that your corporate aviation fossil fuel pipedream suggestion for us?

[@jb5music]

20% by 2035! woo hoo

[@MicahBratt]

It would be awesome if hydrogen somehow could work. Working around jets is hard when you have to breathe in all their unhealthy exhaust, which there’s a lot of

[@pablobenz7734]

Can companies make the whole experience more comfortable....flying used to be so memorable... NOW EVERYTHING FEELS LIKE RIDING A PUBLIC BUS .

[@bi5048]

Planes can only be powered by ticket sales

[@AvgDietCokeEnjoyer]

What’s the purchase power for air travel between consumer and commercial?

[@JoaoPinela]

What great video editing.... They even cut out match end and show one last point for the losing team..... 🤦🏻‍♂️🤦🏻‍♂️🤦🏻‍♂️ I won't even mention calling the set winner while the point is going on ....

[@thuggeegaming659]

You can't store hydrogen fuel in the wings unlike conventional fuels which can, which is why it's still not a great fuel for airplanes. However, hydrogen is a great fuel for hybrid airships

[@fritzstauffacher6931]

Yeah that’s a massive problem.

[@artlewellan2294]

At minute 3.00 in this video the claim "hydrogen fuel cell is more efficient than combustible hydrogen" is not true. Combustible hydrogen in the ICEngine of a Plug-in Hybrid PHEV drivetrain can 'effectively' deliver more than twice the equivalent MPG possible in fuel cell EVs. This personal car application of combustible hydrogen emphasizes the need to reduce driving overall, not merely replace fossil fuel for travel and transport purposes. PHEVs offer more equitable distribution of battery resources and the more ideal application of solar PV arrays (on rooftops and neighborhood mini-grids as opposed to vast solar field arrays that require long-distance transmission lines connected to complex regional utility grids, both of which remain vulnerable to power outage. Most air travel is recreational. A lesser level of air travel is defensibly essential.

[@sheldondouglass6153]

Maybe we should just figure out what’s going on with Boeing.. just a thought.

[@ViksterG]

It can't replace typical jet fuel but it will help lessening carbon emission from the industry as a whole. And that can be considered a win.

[@Aeronaut1975]

How so? The atmosphere contains 0.04% Co2. If that was reduced by half to 0.02%, then every living plant on the planet would stop photosynthesising and die. We need MORE CO2, not less. Why do you think Dutch farmers pump CO2 into their greenhouses?! to promote faster growing, larger crops with better yields. You want more crops, with bigger, healthier yields to feed more people? we need more CO2, not less.

[@samsabruskongen]

Keep dreaming.