The greatest subsea project ever !

The greatest subsea project ever !

    Spiral Ocean is the name of one of the largest underwater projects, if not the largest ever built or even imagined.


    Conceived and thought by Mr. Takeuchi Masaki researcher at the Tokyo university of sciences, who directs a team of the Japanese construction firm Shimizu who presented a successful version of his study of a gigantic submerged housing structure called Spiral Ocean. Not immediately, because some technologies remain to be developed.


    But according to its designers, such a city of the sea could become possible from 2030.
    In a vast sphere of 500 m in diameter, largely submerged, would live 4,000 people, to work, to study or to spend holidays there. 



    The structure would be anchored to the bottom, between 1,500 m and 4,000 m, by a huge twist. 

    The resources of the deep sea, from the differences in temperature and pressure between the bottom and the surface to fishing and aquaculture, would be exploited to make this small world autonomous.


    Why not live on the ocean rather than below the surface? 

    The project is not a proposal for a marine city. It is about exploiting the potential of the deep ocean and ensuring the sustainability of the human species.

    Ocean Spiral is a base camp. The ocean is a source of energy, fresh water, food and natural resources. It is also a very good place to reprocess our CO2 production.

    What energy source will Ocean Spiral use?

     Thermal energy, which consists in exploiting the temperature difference between the surface and a depth of 1,000 m.

    It is enough in tropical regions, between the equator and 20 ° latitude. The difference can reach 20 ° C, which would provide a power of 100 MW. This production is continuous and stable, unlike solar and wind energy.

    The water pressure, taken at 2,500 m, can be used to produce fresh water by osmosis through a semi-permeable membrane. The pressure existing at depth can indeed serve to overcome the osmotic pressure and therefore to separate water from salts and impurities.


    This large structure exploits the resources of the ocean, is it sustainable?


    This kind of project is designed initially based on environmental protection, and a proposal to divert consumption by attaching a reasoned relationship between man and nature.





    Creates trading areas, for example in aquaculture, and feed the fish with waste. And regeneration of underwater environments and ecosystems.



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