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Oceanic Solutions

earthspacecircle_blogspot.com

This paper is about two subjects. The first is the latest update on the sea level rise and other oceanic issues. The second is a "no-regrets" to do list involving the oceans that will help the fight to mitigate climate change.

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John Benson's picture

Thank John for the Post!

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Matt Chester's picture
Matt Chester on Oct 22, 2019 10:31 pm GMT

In the long term renewably generated hydrogen could be used for generation of propulsion and auxiliary power.

When it comes to cleaning up air and water travel (largely for cargo), it does seem like hydrogen is the solution we have to go all in with. There's only so much that can be done with improving efficiency or with biofuels, and electrifying them doesn't seem realistic (at least on the time-scale needed)

John Benson's picture
John Benson on Oct 23, 2019 7:18 pm GMT

Thanks for the comment, Matt.

Ships have already started the transition to electrical power via Azipods. See the two links below.

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

http://www.abb.com/cawp/seitp202/6e198d989e3b9cbbc125766c004dd905.aspx

Unfortunately the generators still use diesel prime-movers. An interim step would be hybrids with large battery banks, and finally renewably produced hydrogen, hopfully with fuel cells (price needs to come down and reliability imporvements are needed), H2ICE, H2CTs (combustion turbines, which my old employer (Siemens) has already demonstrated), or H2CC (combined cycle).

The above transition should also improve resiliency, and also make fresh water for cruze ships.

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