• Phoenixz@lemmy.ca
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    2 days ago

    Seeing title:

    revolutionary

    Rule: when someone claims a revolutionary product, it’s probably bullshit as I see revolutionary product announcements about twice a day and real revolutions about once every decade at best.

    Reading article:

    Yeap, this is something somewhere in some lab that one day maybe a decade from now find its way into a consumer product, but probably not air conditioners anyway…

    For the moment it sort of sounds sort of like a Peltier cooler, which also is useless for airconditioning

  • xodoh74984@lemmy.world
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    2 days ago

    I searched for “nitinol cooling system” and found articles dating back to 2016 about the same technology at a German university –

    https://newatlas.com/shape-memory-refrigerant-free/41652

    https://newatlas.com/shape-memory-alloy-nitinol-heating-cooling/58837/

    Cool tech, but this recent article lacks substance compared to the older ones. Also interesting that the German team claimed 2x better efficiency than a typical heat pump.

  • sturger@sh.itjust.works
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    2 days ago

    You know what’s even cheaper to run than this “new technology”? Breathy promotion pieces that give no evidence whatsoever to support it’s claims. Way to go, PR folks.

  • Vitaly@feddit.uk
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    2 days ago

    Is this cheaper to run more expensive to buy type of deal? If so I want one of those

    • calabast@lemm.ee
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      2 days ago

      It says the current tech is only 15% efficient vs current AC which is 20-30%, so no it would be more expensive to run. Since it doesn’t exist as a product yet, we can’t really compare initial installation costs, and probably not maintenance costs either. Hopefully they can improve on the efficiency, but there may be a theoretical maximum efficiency and I have no idea if that’s higher than 30% or not

      • pelya@lemmy.world
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        2 days ago

        Yeah, you could probably achieve 15% cooling efficiency with regular old nitrogen or methane instead of fluorocarbons.

  • NoiseColor @lemmy.world
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    2 days ago

    Extremely interesting. Some technical challenges remain, but so many applications if solved.