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Thread: How much do you know about Hydrogen?

  1. 27th January 2024, 08:03 PM #31
    AK83
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    Quote Originally Posted by NavyDiver View Post
    .....


    Back to EU Toyota with 100,000 cars (or others ) each traveling 5000km or so per year. how much hydrogen does Toyota mirai use per 100km showed 0.55 kg/100km.

    My very rough number for hydrogen consumption is therefore 275kg of hydrogen per car or 27,500,000 kilos for 100,000 hydrogen cars!
    .....
    Who's numbers are these?

    Quite the basic math error induced in this section.

    0.55kg/100km at 5000km per year equates to 275kg of H2 per year?

    Do you think it should have been 27.5kg per year ... therefore 2,750,000 kg of H2 per year for 100,000 cars. 2750 tons per year.

    I had a bit of a peek around and found that the 0.55kg/100 figure was done in France by a team of drivers in 'eco mode' trying to achieve a world record having driven 1003klm on a tank in the Mirai.
    So real world values would be greater than 0.055kg/100 anyhow ... but the math did my head in and I had to respond.
    Arthur.

    All these discos are giving me a heart attack!

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  2. 13th May 2024, 09:07 AM #32
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    Hydrogen-powered trucks in China to cost less than their diesel peers by 2027: Refire Group



    • China’s hydrogen economy is currently moving from a policy-driven one to a market-driven one, providing a huge boost to the industry: Refire CEO
    • The country has reduced the manufacturing cost of hydrogen fuel cell systems from over 30,000 yuan per kilowatt in 2015 to below 4,000 yuan now, says CEO Robin Lin



    --Hydrogen-powered trucks are expected to reach life-cycle cost parity with their fossil-fuel-burning peers in China by 2027 even without the aid of subsidies, a milestone which the world’s biggest producer and consumer of the zero-emission energy source, seeks to achieve eight years ahead of Europe."

    Noting China has done it in EV, Battery and Solar panels this claim seems possible
    I do chuckle at times at the like of BMW/MERC grumpy about China exporting EVs and USA protectionism in a not so free trade country

    "According to Lin, China has seen significant reduction in the manufacturing cost of hydrogen fuel cell systems, which account for roughly half the cost of a hydrogen vehicle. The cost has dived from over 30,000 yuan per kilowatt in 2015 to less than 4,000 yuan per kilowatt now."

    Edit- Link to SCMP Hydrogen-powered trucks in China to cost less than their diesel peers by 2027: Refire Group | South China Morning Post (scmp.com)

    and REFIRE REFIRE | A new generation of Hydrogen-Electric Energy & Power
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  3. 2nd June 2024, 08:40 AM #33
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    I was speaking to some research Engineers last week who are working on alternate fuel sources to petrol and diesel and they aren’t convinced Hydrogen will or can be rolled out in mass due to the issues in transporting it and the pressures it needs to be under.

    Ammonia is a fuel that is far easier to move and is mainly hydrogen anyway with massive infrastructure already in place due to its use in agriculture. It’s also renewable (longer term as you need a good whack of electricity to make it) but it’s only nitrogen and hydrogen.

    It’s not as easy to get an engine running on it but it is possible. I’m interested as to where this will go (if anywhere) but interesting none the less.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.
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  4. 2nd June 2024, 07:20 PM #34
    Colmoore
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    Apparently there’s an aviation firm test running 2 helicopters that run on hydrogen and electricity out at Bankstown at the moment.
    The machines are currently hovering tethered to put some hours on under load
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  5. 2nd June 2024, 07:30 PM #35
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    Reminds me of the Hindenburg
    "Land Rover - making mechanics out of everyday motorists for nearly 70 years"
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  6. 8th June 2024, 03:10 PM #36
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    Quote Originally Posted by John_D4 View Post
    Reminds me of the Hindenburg
    Great movie. "the reigning hypothesis now is a combination of static electricity built up as the airship flew, and an unusual type of “dope” used to cover the canvas of the hydrogen-storage areas: paint that rendered the canvas gas impervious but also appears to have been highly flammable. The “incendiary paint” was a mix of iron oxide and aluminum-impregnated cellulose, which are reactive together even after drying.
    “My friend, Addison Bain, has a theory that the canvas skin was doped,” Crouch says, “and it was flammable…. He wrote a book about it. And as a former rocket scientist at NASA, he’s familiar with how propellants work.” Basically, Bain’s theory is that the Hindenburg was painted with rocket fuel. "
    What Really Felled the Hindenburg? | Smithsonian (smithsonianmag.com)

    Noticed Canada. Korea, Japan and France getting very interested in Hydrogen Pyrolysis from our Australian University and now Australian Company NOT INVESTMENT ADVICE!!!!!!!!!

    "Hazer signs MoU with POSCO"

    "POSCO, based in Pohang South Korea, is one of the world’s largest steel makers and has announced its plan to achieve carbon neutrality by 2050. With POSCO Holdings in the lead, POSCO Group is seeking balanced growth across seven core businesses: steel, rechargeable battery materials, lithium/nickel, hydrogen, energy, construction/infrastructure and agri-bio."

    The Canadian might be next after Perth's Commercial demonstration plant which is now in operation- **** story really It is at Woodmans Point Waste water treatment plant honestly treating in IT without treading in IT
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