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hydrogen powered superyacht?


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doesn't sound very practical 

Aqua's technology system will rely on two 28-ton vacuum isolated tanks, which are to be stored at temperatures as low as -253 C.
The liquified hydrogen is converted into electrical energy by proton exchange membrane (PEM) fuel cells.
a lot bull$hit when they say a ship is "launched" 
but actually mean "a proposal has been released"
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think big

 

turn taranaki into a natural gas - hydrogen conversion plant

 

source product can also be methane burps + farts from cows! - but how to capture it

 

https://en.wikipedia.org/wiki/Hydrogen_production

 

what could possibly go wrong

 

The core Think Big projects included the construction of the Mobil synthetic-petrol plant at Motunui, the complementary expansion of the oil refinery at Marsden Point near Whangarei, and the building of a stand-alone plant at Waitara to produce methanol for export. Motunui converted natural gas from the off-shore Maui field to methanol, which it then converted to petrol on-site. Declining oil prices rendered this process uneconomic and saw a reduction in the production of synthetic fuel, however the industry still remained at large due to prior investment. New Zealand would abandon the manufacturing of synthetic petrol in February 1997, allowing the plant to switch the focus to methanol.[3].

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Yes, but you can make it from water+electricity -- unlike diesel. Turning 'naki gas into hydrogen doesn't make a lot of sense, but you could certainly use all of that spare electricity down south if the smelter stops using it.

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"Renewable" energy for hydrogen production will be here soon. Tuaropaki Trust and some Canadians will be using geothermal to produce hydrogen next year at Taupo. Hiringa and Ballance using wind turbines in Taranaki on much the same timeline.

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I really cannot see liquid hydrogen being stored on a Boat for all sorts of practicle reasons. Besides, how would you fill the tanks again. No ordiary tanker is going to be able to pop down to the local marina and jerry cans from a Car refilling station is not going to be sucessful.

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the LNG tankers that supply gas to japan from the timor gap? and kamchatka?

 

maxresdefault.jpg

 

have HUGE well insulated, spherical pressure tanks on them to keep the natural gas low volume liquid  

 

but there is still a "boil-off" which is captured and runs the ships engines

 

LNGtanker.jpg

 

presumably a superyacht as big as this hydrogen beastie will still have a daily liquid hydrogen boil-off AND won't actually spend a lot of time at sea

 

maybe it could run the fuel cells and provide power back into the grid?

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But liquid H is vastly colder than LNG. It boils at -252C. A pressure vessel of hydrogen is ruffly at 5000PSI.

 

But interestingly, liquid Hydrogen is not an economical means of storing the energy it contains. Umm, how do I explain that better? It has poor energy density. You can actually store more Hydrogen energy in a Hydrocarbon liquid like Petrol, than as pure liquid Hydrogen. In fact, there is ruffly 65% more hydrogen in a ltr of Petrol than a ltr of pure Liquid Hydrogen. Try getting your head around that one.

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Last Sunday was privileged to go for a test drive in a Tesla model 3,0 to 100 in 3 seconds,full charge 650km apparently and if charged at home $2.   $90k though. battery they say will last at least 300thousand kms before replacement.

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Using electricity to make hydrogen will use more energy than it creates. And electric motors at way more efficient than a combustion engine. So why would you bother?

Correct if you make it the old fashioned way using electrolysis. But that it not how it is produced commercially.

And the article states that the Hydrogen is passed through a cell producing electricity. So the Vessel must be electric powered.

 

Modern Hydrogen powered Vehicles are electric powered. Are far better for the environment than anything battery powered and most especially for the Countries that get electricity from means other than Hydro. The only thing holding them back is the refilling stations. Electric charging is easy to install. Hydrogen refueling stations will require a large chunk of investment to establish.

 

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There are several processes and some are still so new, the technology is still secret. Currently, the cheapest commercial method is steam reforming of Hydrocarbons. Especially the "Off Gasses" that are produced during refining.
I use a method in my plant that purifies the off gasses and turns them to Hydrogen and that is then fed back to the burner for heating the plant. That allows me to start the plant on a liquid fuel and then once it is running, reduce the liquid fuel consumed as the Hydrogen kicks in. It is a beautiful clean burning and very hot flame.

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