• @[email protected]
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    871 day ago

    I feel like the next big technological achievement will just be replacing water with some other fluid.

    “Steam cycle? No, this is the much more advanced glycol cycle.”

    • @[email protected]
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      2118 hours ago

      It’s why photovoltaics are so cool. Direct electricity generation without having to spin magnets in circles like neanderthals.

      • Redjard
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        14 hours ago

        Solar is no doubt the coolest.
        Hydro and wind are also very neat, going directly from mechanical to electric via generator, without a steam-turbine.

        There is also a very cool fusion-category based on dynamic magnetic fields, that basically form a magnetic piston which expands directly due to the release of charged particles via fusion and then captures the energy from that moving electric field by slowing it back down and initiating the next compression.
        A fully electric virtual piston engine in some sense, driven my fusion explosions and capturing straight into electricity.
        Feels so much more modern than going highly advanced superconducting billion K fusion-reactor to heat to steam to turbine.

        • @[email protected]
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          14 hours ago

          Yes! That is super cool tech. If I remember correctly, only about half of the fusion reaction energy was produced as charged particles though. The other half was free neutrons which are notorious for not interacting with the EM field.

          I love the idea, it is such a cool direct energy capture method, but it is inherently inefficient.

          I’d love to be proved wrong. I did a quick search and couldn’t find the company I’m thinking of, so I’m going off memory.

          • @[email protected]
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            4 hours ago

            The way I understood it, the system used electromagnets to create a magnetic containment field to drive the fuel together to create the fusion event. That same magnetic containment field would experience a force from the produced charged particles. That force would produce a current in the electromagnets. That current would be stored in capacitors as a voltage which would be used as the energy source for the next magnetic compression cycle. The excess energy stored in the capacitor after the compression would be ‘generated’ energy.

          • Redjard
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            214 hours ago

            Yeah, not the right words. I intended to say no steam turbine.
            Instead of turning energy into heat into turbinable fluid flow in form of steam, they directly use turbinable fluid flow.
            The difference is really the lack of steps up to the turbine.

            • @techt
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              114 hours ago

              Ahh gotcha, thanks for clarifying! And I agree, very cool stuff.

      • @turmacar
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        114 hours ago

        Molten Salt Generators are cool Solar power too.

    • @[email protected]
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      213 hours ago

      We already use different fluids for different power cycles, for example organic rankine cycles or just power cycles that use organic fluids are good for low temperature heat sources like low temp geothermals

    • @nandeEbisu
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      1 day ago

      The nice things about steam is you can get as much water as could want on earth, but something like ammonia which we used as a refrigerant for years would probably work well too and there’s planets with ammonia rich atmospheres.

      The interesting thing is the cycles are fairly similar at a high level, you just run out in one direction for power and the opposite direction for cooling.

        • @nandeEbisu
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          140 minutes ago

          That’s how you know you’ve got a leak. The reason they stopped using ammonia in the first refrigerators was because of they had a leak it would kill the entire household.

    • @JayDee
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      6 hours ago

      You mean like how refrigeration and heat pumps operate?

    • @Katana314
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      318 hours ago

      We could try Brawndo. It’s got electrolytes, which are great for making electrocity.

    • @MataVatnik
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      423 hours ago

      I think methylene chloride is already used for lower temp vapor pressure generator.