• oneser@lemmy.zip
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    17 天前

    I mean it seems the more complex solution in deployment for sure, but its design could still have use in low heat industrial uses (sub 250°C, e.g. food prep, textile, sanitation etc.) where it is used heat -> heat rather than heat -> electricity -> heat. Maybe these replace thermal collectors eventually.

    But that is not the point of this meme at all, just my thoughts.

      • zout@fedia.io
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        17 天前

        Only with small temperature differences, the higher the difference the lower the COP.

          • zout@fedia.io
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            17 天前

            I really don’t get where those temperatures come from? I was referring to something like this. The higher the temperature difference between cold and warm side, to worse the COP gets. If you wanted to go from ambient to 200°C, the COP would drop lower than 1 and you’d be better off using an electric boiler.

            • mnemonicmonkeys@sh.itjust.works
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              17 天前

              My point is that the “small difference in temperatures” where it’s worthwhile to run a heat pump is still wide enough to run an air-exchange heat pump cost effectively damn near anywhere on Earth outside of the poles. You’re arguing the finges when almost nobody would be affected by it.

              And if you’re using a geothermal heat pump, your thermal sink continuously sits around 50°F (while homes tend to be kept at 65-75°F), which means it should always be efficient.

              Quit this conservative-esque route of arguing. It’s bullshit and you know it.

              • zout@fedia.io
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                16 天前

                You need to quit the bullshit yourself and learn to read. We were specifically discussing heat pumps for industrial heat use in the sub 250 degrees Celsius range, not keeping a house at a comfortable temperature. But good luck heating a home in the desert with a heat pump with the evaporator on a solar boiler.