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HKUST Unveils Breakthrough Elastic Alloy: 20x Temperature Variation and 90% Carnot Efficiency in Solid-State Heat Pumps
- Researchers at HKUST have developed a groundbreaking elastic alloy, Ti₇₈Nb₂₂, with remarkable solid-state heat pumping efficiency.
- The Ti₇₈Nb₂₂ alloy shows a reversible temperature change capacity 20 times higher than standard metals under mechanical stress.
- Efficient heating solutions are crucial due to the significant energy consumption dedicated to heating globally.
- The team utilized the thermoelastic effect to create a sustainable alternative for mechanical heat pumps.
- The Ti₇₈Nb₂₂ alloy outperforms traditional metallic counterparts, inducing a 4-5 K temperature change.
- This development challenges the reliance on vapor-compression heat pumps, offering enhanced energy efficiency.
- Ferroelastic alloys hold potential for substantial temperature fluctuations, paving the way for eco-friendly heat pumping.
- The research, documented in Nature Communications, received funding from the Hong Kong Research Grants Council.
- Ti₇₈Nb₂₂ could revolutionize energy consumption paradigms by reducing fossil fuel dependency.
- This innovation not only promises efficiency but also advocates for a sustainable future in energy consumption.
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