German startup advancing compressor-free electrocaloric heat pump technology - pv magazine Global
www.pv-magazine.com
Qurie GmbH has developed a heat pump that replaces traditional vapor-compression cycles with solid-state materials, potentially reaching over 70% theoretical efficiency and cutting energy use by up to 30%. Its patented heat-pipe-based design enables fast evaporation-condensation heat transfer without complex mechanics, achieving up to 20 Hz operation and aiming for compact, efficient cooling in sub-10 kW applications.
  • CompactFlax@discuss.tchncs.deEnglish
    15·
    20 days ago

    Neat.

    A four-stage cascade has already demonstrated 2 W of cooling power over a 2 Kelvin temperature lift.

    Well, they’ve got a long way to go to manage 20-40° temperature lift needed to replace a cold climate heat pump.

    • Asetru@feddit.org
      16·
      20 days ago

      By connecting multiple stages in series, each separated by one-way pressure valves, larger temperature lifts can be achieved. “This allows us to bridge temperature differences of several degrees, for example from 5 C up to 40 C in typical applications,” Vogel said.

      • CompactFlax@discuss.tchncs.deEnglish
        11·
        20 days ago

        Yes, I read that part too.

        20 segments, targeting a 20 Kelvin temperature span and approximately 100 W of cooling capacity.

        100w is still a very long way to go in scaling to 1-10 kw. Hopefully it scales; always good to have increasing efficiency in climate control when our planet is warming

    • jmill@lemmy.zip
      7·
      19 days ago

      Even just replacing Peltier coolers would be great. Solid state cooling is so handy we use Peltier coolers a fair amount despite their poor efficiency.