Hydrogen for transportation

Better tankage

In their work, the WSU research team developed a theoretical model for real-world tank performance and verified it using data from a fleet of Plug Power's in-service tanks. The researchers showed that changes in liquid hydrogen tank operations can yield significant boil-off loss reductions, and that it is possible to get to zero boil-off with additional system modifications. For instance, they showed that changing the pressure limits when the relief valves are activated can decrease hydrogen loss by about 26%.

"That's just changing the set parameters of a valve, which is pretty simple," said Appel.

The mathematical model they developed is computationally efficient to run, too, said Matveev. Previous, more involved models have taken days to run, required a supercomputer, and could only simulate the tank's operations for a few hours. WSU's new simplified model calibrated against real-world test data can simulate hundreds of hours of operation in minutes.


Researchers led by Genki Kobayashi at the RIKEN Pioneering Research Institute (PRI) in Japan have discovered a way to max out the amount of hydrogen that can be stored in perovskite crystalline powder.
More hydrogen news

hydrogen peroxide
 
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Sir Keir Starmer has overruled Ed Miliband by snubbing plans for a green energy plant in a major blow to the Energy Secretary’s net zero plans.

The Prime Minister has effectively closed the door on the construction of a major hydrogen project on Teesside – believed to be backed by Mr Miliband – by deciding to endorse a rival tech development near the site, according to correspondence seen by The Telegraph.

The H2Teesside plan, proposed by BP, would have produced so-called “blue” hydrogen that could have provided up to 10pc of the supply Mr Miliband has said Britain would need by 2030.

However, the plan clashes with proposals on nearby land for Europe’s largest data centre – backed by Teesworks, the public-private partnership supported by Tees Valley mayor Lord Houchen.

A letter to Lord Houchen from Peter Kyle, the Business Secretary, confirms that the Government is planning to designate the Teesworks site as an “AI growth zone”, a central plank of the Prime Minister’s plan to make Britain an artificial intelligence hub.

It describes the Teesworks data centre as “the cornerstone of the UK’s AI strategy” and states that Sir Keir’s AI adviser will join a group dedicated to the project.

The decision to designate the site an AI growth zone was made by the AI task force, chaired by Number 10.

“The Government will put its full weight behind Teesworks and Teesside International Airport becoming an AI growth zone,” the letter says, adding that ministers will push major AI companies to invest in the project.

The letter is due to be published by the Planning Inspectorate on Friday as part of a review of the hydrogen project. Last month Mr Miliband delayed a decision on it until the end of October “to allow time to request further information”.

The data centre and hydrogen plant projects are on overlapping plots of land and planning documents have stated that they are incompatible.

The Cabinet row over the decision has been seen as a test of Labour’s commitment to its net zero plans, which threaten to clash with the Prime Minister’s hopes of being a world leader in AI and attracting overseas investment.

Mr Miliband has the power to grant the hydrogen project a development consent order – a right to forcibly buy land off local property owners.

The Telegraph revealed last month that the Department for Science, Innovation and Technology had drafted in legal advice in the event that Mr Miliband granted the order. The Energy Secretary instead delayed the decision, keeping both projects in limbo.

BP has said it remained committed to the project and that it remained in talks with the Government.

It has admitted that it does not have a primary customer lined up for the hydrogen plant but has said the project should not be blocked by “speculative development”.

Sir Keir is keen to show he is committed to Britain’s AI goals, which are expected to be at the centre of a “technology partnership” agreed with Donald Trump, the US president, next week.

The Teesworks site has the potential for a data centre with more than a gigawatt of computing power, which would make it Britain’s largest site and potentially turbocharge hopes of developing and running advanced AI systems in Britain.

Mr Kyle’s letter, sent earlier this year before his recent replacement as Technology Secretary by Liz Kendall, stated that the Teesside AI growth zone would deliver “the sovereign AI capability that will secure the UK’s place as a global leader in this technology”.

A government spokesman said: “Any infrastructure decision this Government makes will be in the national interest – helping deliver the Government’s Plan for Change.”

Lord Houchen has said that Britain “cannot afford to dither and delay” if it is to compete in the global AI race.

In a letter to Mr Miliband in August, he said the hydrogen plant would have a “sterilising effect” on the AI growth zone plans.

Lord Houchen wrote to Michael Shanks, the energy minister, last week to say that H2Teesside remained in discussions with the Government and that no decision had been taken.
 
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Today in hydrogen
The scientists completed an additional set of experiments and found that the membrane achieved a record-breaking selectivity of 1,800, meaning it allows hydrogen to pass through 1,800 times more easily than CO2.

Worded oddly--there is no hydrogen in CO2
Astron


Crystal formation and new imaging tech to help
 
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Today in hydrogen
The scientists completed an additional set of experiments and found that the membrane achieved a record-breaking selectivity of 1,800, meaning it allows hydrogen to pass through 1,800 times more easily than CO2.

Worded oddly--there is no hydrogen in CO2
Most hydrogen it produced by steam reforming of Methane. For fuel cells, the hydrogen must be extremly pure and CO2 leftovers from the reforming must be removed.
 
Safran postpone their design effort to the next century:

 
Alloys for hydrogen containers
Sensor

Production
By showing that donor co-doping can overcome fundamental limits in proton conductivity, this study opens a new path toward cleaner, more efficient hydrogen energy systems.

"Our findings provide a powerful new design principle for realizing solid electrolytes that operate with high efficiency at intermediate temperatures. We expect this breakthrough to accelerate the practical development of next-generation protonic ceramic fuel cells, steam electrolysis cells, and other hydrogen-related energy technologies aimed at achieving a carbon-neutral society," concludes Yashima.


Containment
In collaboration with the National Institute of Technology (KOSEN), Oshima College, the National Institute for Materials Science (NIMS) succeeded in developing a new regenerator material composed solely of abundant elements, such as copper, iron, and aluminum, that can achieve cryogenic temperatures (approx. 4K = −269°C or below) without using any rare-earth metals or liquid helium.

Fuel cells

Leak detection

Huge deposits
 
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Forget about green hydrogen (and also about methanol synthesised from any hydrogen). It's way too expensive.
The costs are much more prohibitive than was estimated years ago. Science failed. Engineers and natural scientists tried to calculate costs, but they were utterly incompetent at it. They calculated it would be 2-3x as expensive as steam-reformed hydrogen, in reality it's about 5x and no economies of scale to be found so far for electrolysers.

Clean/Green hydrogen is going to be something in China and in petrochemical industries in the EU (due to RED III directive) because that's where government power is wielded in a brutal fashion to overrule the market's price signal.
 
Alk
Forget about green hydrogen (and also about methanol synthesised from any hydrogen). It's way too expensive.
The costs are much more prohibitive than was estimated years ago. Science failed. Engineers and natural scientists tried to calculate costs, but they were utterly incompetent at it. They calculated it would be 2-3x as expensive as steam-reformed hydrogen, in reality it's about 5x and no economies of scale to be found so far for electrolysers.

Clean/Green hydrogen is going to be something in China and in petrochemical industries in the EU (due to RED III directive) because that's where government power is wielded in a brutal fashion to overrule the market's price signal.
Alcalic eletrolysers are very cheap, it takes just sone moderate priced nickel plates and and some KaNaOH solved in water. It only becomes expensive by the price of electricity and transport. Additionally, if a ultra high purity is needed (fuel cells) it also effects the price.

Using hydrogen from solar power for reduction of Australien iron ore might be economic in near future, driving cars with fuels cells not.
 
I am professionally involved in the issue. Green hydrogen is too expensive.

7.5€/kg H2 real price, as opposed to often less than 2 €/kg H2 price for grey hydrogen. ETS won't bridge the gap until about 2040 (and only in the EU). RED III (EU-only) bridges it only for the petrochemical industry, which is about to get crashed (possibly to ~30% of current output) before 2040.

My department is literally writing manuscripts for scientific articles proving that the published cost estimates were practically all crap written by engineers and natures scientists who are incompetent regarding costs.
 
There no global price for hydrogen, other than for oil. Hydrogen is not suited for energy transport, so the price mainly depends on the local energy price. Quoting a price doesn't make sense, because the price of uncompressed gas at the electrolyser produced by solar poweror surplus nuclear energy in the night can be cheap, other than the price of a gas filling station for hydrogen piwered vehicles.
 
So ACES was a bad idea then, after all?
So, how do you deduce that ACES is a bad idea from this, when it is just a Centaur with H2-O2 thrusters and an IC engine for electrical power and pressurization. Centaur has more than 60 years of experience. Not to mention Saturn I,IB &V, Delta IV, Ariane family, and Shuttle. Are you saying these were all bad ideas to use hydrogen?

Plus design standards for Spaceflight are different than terrestrial.

And you are doing it again - taking an issue/statement from one subject and apply to others unrelated subjects.
 
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But I didn't jump down your throat wondering about seals


consistency please
 
But I didn't jump down your throat wondering about seals


consistency please
I am consistent. I consistently state that there is no issues with seals on space vehicles in flight. Spaceflight has more stringent standards than terrestrial endeavors. Even with natural gas and propane, there are house, tank, vehicle, pipeline, etc leaks all the time. Now add leaky hydrogen with a flammability of 4-75% in air. It doesn't look like something John Q. Public can easily deal with.
 
Which is worse, something that rises up, something like CO2 along the ground like Nyos?

Fossil fuels do both…spread as a liquid with vapors rising from it.
 
Agree on the sealing problem, but it's just one point along other obstacles which makes hydrogen quite unsuited for any transport application other than rockets.

In the mean time, the "evil" Synfuels make a lot of progress, look for companies like Carbonology or Syntholene.

On the other hand, regenerative hydrogen is fine for industriel use when produced on side. In this case, the troublesome storage and trandport can be largly avoided.
 
Fossil fuels do both…spread as a liquid with vapors rising from it.
I was going to say inaccurate generalization but it is just plain wrong.
This is where experience and education matter, where one obtains knowledge. Science and engineering deal with facts and not subjective thinking.

Coal, heavy fuel oil, diesel or kerosene do not have flammable vapors at room temp, they have high flash points,
Gasoline, propane and butane have vapors that are heavier than air, but gasoline is the only liquid at room temperature
Natural gas and methane are lighter than air but are not a liquid at room temperature .

Vapors that rise up, disperse in open air. Unlike heavier than air vapors, which remain along the ground and collect in low spots.
 
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