Hong Kong researchers develop refrigerant-free freezer reaching sub-zero temperatures

spectrum.ieee.org

Hong Kong researchers developed the first elastocaloric freezer reaching sub-zero temperatures without refrigerants. The prototype uses a nickel-titanium alloy that absorbs heat when relaxed and releases it when compressed, successfully freezing water. This solid-state technology offers a climate-friendly alternative to conventional freezers. While promising, the technology faces challenges in energy efficiency and manufacturing costs, with a commercial product anticipated in two to three years.


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Hong Kong researchers develop refrigerant-free freezer reaching sub-zero temperatures | News Minimalist