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David Cebon

@davidcebon

Director, Centre for Sustainable Road Freight http://www.csrf.ac.uk and Professor of Mechanical Engineering at University of Cambridge. Founding member of Hydrogen Science Coalition https://h2sciencecoalition.com/

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17.11.2024
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Latest posts by David Cebon @davidcebon

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Hydrogen-Powered Aircraft - The Centre For Sustainable Road Freight In 2006, Ulf Bossel, founder of the European Fuel Cell Forum, published an excellent article about the hydrogen economy [1]. The paper contains simple fundamental analyses of the challenges of a hydro...

If you read Bossel's analysis, based on the immutable laws of thermodynamics, it is clear that providing the necessary fueling infrastructure for hydrogen-powered aircraft is a non-starter. Read it for yourself: www.csrf.ac.uk/blog/hydroge... No engineer would pursue this if they knew the facts.

09.02.2025 10:36 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Carl Sagan on Military Spending and Climate Change
Carl Sagan on Military Spending and Climate Change YouTube video by Lucky Tran

How much money did the USA spend on defense against the USSR during the cold war and how much is it spending on mitigating climate change? Which threat was higher risk?

Listen to Carl Sagan on this topic...

youtu.be/4C6co5qXEE4?...

08.02.2025 23:25 πŸ‘ 5 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Hydrogen-Powered Aircraft - The Centre For Sustainable Road Freight In 2006, Ulf Bossel, founder of the European Fuel Cell Forum, published an excellent article about the hydrogen economy [1]. The paper contains simple fundamental analyses of the challenges of a hydro...

In 2006, Ulf Bossel (founder of the European Fuel Cell Forum) calculated the massive amounts of energy, fuel, water, and CO2 that would have to be transported, to power the aircraft that use Frankfurt airport using hydrogen.. It simply can't work. Read extract here:

www.csrf.ac.uk/blog/hydroge...

08.02.2025 23:10 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Airbus postpones development of new hydrogen aircraft Airbus said on Friday it is delaying plans to develop a hydrogen-powered commercial aircraft by the middle of next decade, citing slower than expected developments in technology.

It was obvious 20 years ago that hydrogen was a non-starter for powering passenger aircraft.

www.reuters.com/business/aer...

08.02.2025 23:10 πŸ‘ 3 πŸ” 1 πŸ’¬ 1 πŸ“Œ 1
LinkedIn This link will take you to a page that’s not on LinkedIn

lnkd.in/eK-MTCUW

lnkd.in/eYwDNMsw

lnkd.in/e9dWZghi

www.sustainable-bus.com/news/danjout...

07.01.2025 22:48 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
LinkedIn This link will take you to a page that’s not on LinkedIn

My point is that there have been 4 incidents of hydrogen leaks of accidents involving hydrogen vehicles in the last month. The resulting air pollution from vehicle incineration is non-trivial; not to mention the danger to the public and the global warming effect of leaked hydrogen...

07.01.2025 22:48 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Hydrogen bus blaze in west France: seven buses lost, investigation underway - Sustainable Bus A fire broke out on January 2, at the Optymo bus depot in Danjoutin, Territoire de Belfort (west of France) destroying seven hydrogen buses

"The only emission from hydrogen fuel-cell buses is pure water..."

www.sustainable-bus.com/news/danjout...

07.01.2025 11:04 πŸ‘ 6 πŸ” 1 πŸ’¬ 2 πŸ“Œ 1
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Hydrogen Science Coalition A coalition of academics & engineers bringing an evidence-based view on hydrogen's role in the energy transition.

The Hydrogen Science Coalition has joined Bluesky πŸ¦‹ We're a coalition of academics, scientists & engineers bringing an evidence-based view on #hydrogen's role in the #energy transition, free of vested interest. Follow us for regular updates and find out more on our website h2sciencecoalition.com

16.12.2024 12:38 πŸ‘ 11 πŸ” 4 πŸ’¬ 0 πŸ“Œ 2


This is the way to do decarbonisation! Many thanks to Julian Fletcher of GWR for a fascinating visit.

13.12.2024 12:55 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0


The train is comfortable, warm (on a winter morning), and relatively quiet. It is currently in the last stages of a comprehensive testing programme that will lead to passenger operations early next year.

13.12.2024 12:55 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

The train 'opportunity charges' its batteries in a few minutes, each time it gets to the end of the line. Deployable shoes underneath the train automatically connect to conducting rails and fast charge the batteries at about 600kW.

13.12.2024 12:55 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

This is an excellent solution to electrification of many smaller UK train lines that would otherwise be too expensive to decarbonise.

13.12.2024 12:55 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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GWR rapid-charging battery train trials under way The trains are converted from old Underground trains and will be rolled out in the Thames Valley.

This morning I had the opportunity to see, and ride on the Great Western Railway (GWR) experimental battery electric train at West Ealing in London.

www.google.com/amp/s/www.bb...

13.12.2024 12:55 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Thanks Abigail. I will add this to my list of about 30 failed hydrogen bus projects around the world!

24.11.2024 12:34 πŸ‘ 5 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

Boggles my mind... How can the German Government either be so gullible or have such poor due diligence! Good money after bad...

I hope all is well with you.

David

20.11.2024 20:55 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

+ Reinforce the grid...

17.11.2024 17:47 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

...there appears to be some hope that common sense science and engineering may ultimately achieve a better environmental outcome for the planet.

17.11.2024 12:17 πŸ‘ 2 πŸ” 0 πŸ’¬ 3 πŸ“Œ 0

When we see the oil majors pulling out of major hydrogen projects; and Shell shutting down all of it's hydrogen refuelling stations in California; and the failure of dozens of hydrogen bus trials; and shutting down of major hydrogen-for-heating trials...

17.11.2024 12:17 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

It isn't obvious how much difference the HSC's efforts have made, but the #hydrogen tide seems to be turning. The main reason seems to be that the economic realities of hydrogen projects are becoming clear to politicians, and their willingness to subsidize the hydrogen industry is wearing thin.

17.11.2024 12:17 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Hydrogen Science Coalition A coalition of academics & engineers bringing an evidence-based view on hydrogen's role in the energy transition.

It has been three years since the @Hydrogen Science Coalition was formed h2sciencecoalition.com

17.11.2024 12:17 πŸ‘ 14 πŸ” 5 πŸ’¬ 2 πŸ“Œ 1
What ever happened to the Hydrogen Economy?
What ever happened to the Hydrogen Economy? YouTube video by Colorado Renewable Energy Society (CRES)

Great overview of the Hydrogen Economy by Chuck Kutscher. Worth watching... www.youtube.com/watch?v=sQwS...

17.11.2024 10:50 πŸ‘ 6 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
Hydrogen heating, village trials and explosion risk With possibly just days to go before the UK government an...

ahead'.

https://www.linkedin.com/pulse/hydrogen-heating-village-trials-explosion-risk-michael-liebreich-dlpdc/

29.11.2023 00:01 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Great article by @MLiebreich about the safety issues with the proposed 'Hydrogen Village' trial in Redcar.

It is remarkable that @NGNgas, and @RedcarCleveland think this is reasonable behaviour and that @ClaireCoutinho is 'minded to go...

29.11.2023 00:01 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
David Cebon on LinkedIn: #hydrogen #economy #energyeffici... Energy Efficiency... Dear Energy Ministers attending the...

week:

https://www.linkedin.com/posts/david-cebon-7a245615b_meeting-of-ministers-from-around-the-world-activity-6940786578885644288-Ihxw?utm_source=linkedin_share&utm_medium=member_desktop_web

09.06.2022 22:36 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

A message to Ministers attending the IEA Global Conference on Energy Efficiency in Denmark this...

09.06.2022 22:36 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
David Cebon on LinkedIn: #hydrogen Dear @Aberdeen City Council Why are you blocking Tom Bax...

@AberdeenCC Why are you blocking Tom Baxter on LinkedIN?

https://www.linkedin.com/posts/david-cebon-7a245615b_aberdeen-energy-transition-zone-blue-hydrogen-activity-6940200712706379777-LIFT?utm_source=linkedin_share&utm_medium=member_desktop_web

08.06.2022 09:58 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
David Cebon on LinkedIn: Commoditising hydrogen | Interna... Ammonia spills.. 40% of deep water shipping is for coal...

post...

https://www.linkedin.com/posts/david-cebon-7a245615b_commoditising-hydrogen-international-trading-activity-6938770008466456576-NAhn?utm_source=linkedin_share&utm_medium=android_app

04.06.2022 12:01 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Shipping Ammonia around the world for use as a fuel could have significant environmental consequences. A few thoughts and simple calcs in this LinkedIn...

04.06.2022 12:01 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
David Cebon on LinkedIn: New liquid hydrogen plant opens ... Air Liquide has built a large scale hydrogen plant in Sou...

Air Liquide new hydrogen plant in Nevada... Greenwash.

https://www.linkedin.com/posts/david-cebon-7a245615b_new-liquid-hydrogen-plant-opens-in-apex-activity-6935565695564840960-jBK7?utm_source=linkedin_share&utm_medium=android_app

#hydrogen @h2coalition

26.05.2022 21:10 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
David Cebon on LinkedIn: Gorgon-Carbon-Capture-and-Storag... Performance of CCS at scale.. According to a new report...

here:

https://www.linkedin.com/posts/david-cebon-7a245615b_gorgon-carbon-capture-and-storagethe-sting-in-the-tailapril-activity-6925571383083028480-8lQm?utm_source=linkedin_share&utm_medium=member_desktop_web

@h2coalition

29.04.2022 14:14 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0