research

solid-state cooling device

Solid-state cooling without electricity

Via COOLING POST Researchers in Germany and Japan have developed a new approach to solid-state cooling that uses heat instead of electricity. A prototype developed by teams from the Karlsruhe Institute of Technology (KIT) and the University of Tsukuba in Japan employs two ultra-thin shape-memory films interacting to convert thermal…
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multi source heat pump

Three-source heat pump system for cold climates

pv-magazine Chinese and Spanish researchers have developed a multi-source heat pump system combining air, water, and ground heat sources for improved performance in cold climates. The hybrid system achieves coefficient of performance values of up to 2.74 and uses an adaptive control strategy to optimize heat source selection across seasonal…
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