The following article talks about an innovative new type of fridge coming to the market. It doesn't use a compressor or refrigerant. Instead, it pumps water through a closed loop system with two heat exchangers - one to pick up the heat and one to expel it. The article doesn't get into the physics too much, other than to say it involves magnetizing and de-magnetizing the water to reduce the temperature.
Magnetic fridge eliminates gases, drastically reduces energy use
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