Hopefully let’s hypothesize becomes an actual genre of posts

Brief description: so I have a fridge compressor hooked up to a radiator and hold my finger over the outlet till I the pressure literally pushes my skin out of the way; then I move my finger to release the pressure fully. When my finger moves I can see a mist come out

It’s not super consistent but I can get the mist to appear if I resist the pressure as much as possible can.

It’s also compressed air.

I do have a longer version of the video but the event happens so fast that it would be frustrating to sit through 30 seconds for .5 second event

  • frongt@lemmy.zip
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    3 months ago

    Are you offering a hypothesis? Because it sounds like garden-variety condensation from cooling from expansion to me.

      • frongt@lemmy.zip
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        3 months ago

        Hopefully not for drinking, that system surely contains contaminants like oil from the pump and lead from the solder.

        If you want an atmospheric water collection system, you can find far better solutions online.

        • solidheron@sh.itjust.worksOP
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          3 months ago

          I think the system is braised and not soldiered, but as for the oil I’m looking to test that out by seeing if it floats on top.

          The point would be for drinking or just getting water out of the atmosphere, but I’ll make sure to test heavy metals.

          The other solutions cost money and this is meant to be free by gutting anything with a fridge compressor.

          If it does have oil in the line then I’ll end up killing the motor and making a note

          • frongt@lemmy.zip
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            3 months ago

            You are going to spend far more money running the compressor than you would by any other system. A solar still requires nothing but a few vessels and sunlight, no electricity or moving parts at all.

            • solidheron@sh.itjust.worksOP
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              3 months ago

              Solar still would be a good way of getting the heavy metals out. the compressor based dehumidifier was meant for areas with very little water except for water vapor in the air.

              I might look into relays with duty cycle, if I get a proof of concept working. From what I see I want the compressed air to cool down and water droplets inside to settle before adding more air.

              It will be an option for come steaders

    • solidheron@sh.itjust.worksOP
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      3 months ago

      I have my own but I didn’t post it to avoid coloring people’s idea, but yeah wondering why the most is coming out

      • Nurse_Robot@lemmy.world
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        3 months ago

        Increased pressure turns gas into a liquid. Your finger blocks the exit, it becomes a closed system, the pressure increases, atoms get closer together and turn to liquid

        • frongt@lemmy.zip
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          3 months ago

          That is not correct. When he releases the pressure, the escaping air rapidly expands. Expansion means cooling, so the water vapor condenses.

          Compression of a fixed mass causes an increase in temperature. If you compressed water vapor so much that it turned to liquid, it would condense inside the compression coils and run to the bottom, not blast out.

          Now, condensation does happen in air compressor tanks, but that’s because once the compressed air cools to ambient temperature, the amount of water vapor the air can hold decreases, and the extra water vapor condenses on the inside of the tank.

    • solidheron@sh.itjust.worksOP
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      3 months ago

      I’m wondering that too if the oil from the motor is getting in somehow, there is a shiny film in my fingers but it doesn’t always smell