Spain launching first S-80 Class submarine

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Defense Industry | NAVANTIA begins to load AIP equipment onto the S-83 submarine

Among the equipment that is beginning to be shipped are parts of the AIP system. The S-83 will be the first submarine in the S-80 series to include from
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Navantia initiates first AIP installation in an S-80 Plus submarine - European Security & Defence

Navantia has begun the first AIP installation on a Spanish S-80 Plus-class diesel-electric submarine, the company announced on 31 October 2024.
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zjz said:

"He is the first in the world to achieve this": Spain unveils a submarine with capabilities never before seen under the ocean.

Spain has achieved a remarkable technological breakthrough with its S-81 Isaac Peral submarine, becoming the first nation to develop a vessel capable of producing hydrogen onboard. This revolutionary advancement marks a significant milestone in naval engineering and submarine technology...
farmingdale-observer.com farmingdale-observer.com
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generating hydrogen onboard is new? No, the Electrolytic Oxygen generators have been doing that since the 1950s. And pumping it directly overboard because the hell with having hydrogen inside a steel pipe full of ignition sources! /rant

Oh, generating hydrogen from (bio) ethanol! Okay, that is different and new, and I like it. Minimum loose hydrogen in existence. You'll have to keep the Sailors from drinking that ethanol, though.

Let's see here: C2H6O + H2O <=> 2CO + 4H2

I guess they're just dumping the carbon monoxide into the ocean, then?

Also, nice that it's an endothermic reaction, so the reaction chamber will GET COLD while in use. Endothermic reactions are unlikely to get out of hand.
 
Scott Kenny said:
generating hydrogen onboard is new? No, the Electrolytic Oxygen generators have been doing that since the 1950s. And pumping it directly overboard because the hell with having hydrogen inside a steel pipe full of ignition sources! /rant

Oh, generating hydrogen from (bio) ethanol! Okay, that is different and new, and I like it. Minimum loose hydrogen in existence. You'll have to keep the Sailors from drinking that ethanol, though.

Let's see here: C2H6O + H2O <=> 2CO + 4H2

I guess they're just dumping the carbon monoxide into the ocean, then?

Also, nice that it's an endothermic reaction, so the reaction chamber will GET COLD while in use. Endothermic reactions are unlikely to get out of hand.
Click to expand...
My country is the leading (covert) producer of wine, if we cannot export it to the United States, it is not a bad idea to use it for the propulsion of submarines. Please don't take my country's technology seriously, we don't.

View: https://www.youtube.com/watch?v=AohOrvNY0p0

:rolleyes:
 
Justo Miranda said:
My country is the leading (covert) producer of wine, if we cannot export it to the United States, it is not a bad idea to use it for the propulsion of submarines. Please don't take my country's technology seriously, we don't.

View: https://www.youtube.com/watch?v=AohOrvNY0p0

:rolleyes:
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I mean, storing your hydrogen for the fuel cells as ethanol is far safer than storing it as liquid or compressed gaseous hydrogen. Even if you do need a steam reforming unit hooked up to the fuel cells inlet. Plus, submarines normally have a CO scrubber and burner in the atmosphere control system so a CO leak in the ship would not be terrible.
 
Scott Kenny said:
I mean, storing your hydrogen for the fuel cells as ethanol is far safer than storing it as liquid or compressed gaseous hydrogen. Even if you do need a steam reforming unit hooked up to the fuel cells inlet. Plus, submarines normally have a CO scrubber and burner in the atmosphere control system so a CO leak in the ship would not be terrible.
Click to expand...
In my country there have been many jokes, some quite cruel, about that submarine. I won't be breeding them here out of respect for their crew, I hope if something goes wrong, at least they have a chance.
 

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