The Return of Sail Power: Cargo Ships Are Turning Back to the Wind
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The Return of Sail Power: Cargo Ships Are Turning Back to the Wind
Unofficial Hacker News client; not affiliated with Y Combinator.
calmbonsai · · focus · HN ↗
Turns out, sail-power scales sublinearly and, shocker, the wind isn’t a reliable source of power for the logistics demands of today’s supply chains.
We’re never going back to wind, but we will be de-carbonizing shipping either with ammonia combustion, fuel cells, or both.
defrost · · focus · HN ↗
> de-carbonizing shipping either with ammonia combustion, fuel cells, or both.
Or methanol:
* <a href="https://methanol.org/what-fuels-shipping" rel="nofollow">https://methanol.org/what-fuels-shipping* <a href="https://www.dnv.com/maritime/publications/methanol-fuel-in-shipping-download/" rel="nofollow">https://www.dnv.com/maritime/publications/methanol-fuel-in-s...
* <a href="https://www.lr.org/en/knowledge/research/fuel-for-thought/methanol/" rel="nofollow">https://www.lr.org/en/knowledge/research/fuel-for-thought/me...
GJim · · focus · HN ↗
Currently made from crude oil in a CO2 emitting process from a finite fossil fuel resource.
And yes, whilst methanol can be distilled from wood/crops (a more expensive process), this simply cannot scale, especially if humanity wishes to eat...... You do realise a large container ship is 1/4 mile long and carries north of 18,000 TEU containers; that's 9000 lorries worth. They are big.
defrost · · focus · HN ↗
[dead]
GJim · · focus · HN ↗
Splitting fresh water (salt water is a non-starter) for hydrogen is a rather energy inefficient and expensive process.
> People still use miles?
In maritime world, yes we do; nautical and statute.
> do blather on in that condescending tone.
I do appear to have touched a nerve old sport.