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Elastocaloric heating and cooling. Another topic for @psychicwarrior.

Sparkingchip

Elastocaloric material heats up when exposed to a mechanical force field (F). When this heat is released into the environment and the force field is removed, the material supercools and extracts the same amount of heat from the environment again. The effect is reversible.

www.ipm.fraunhofer.de/.../elastocaloric-systems.html

  • I can imagine the tricky bit of using it is arranging that it dumps the heat on one side of a barrier, and absorbs heat on the other side, without some ridiculously complicated and inefficient mechanical system.

  • Sounds like it could be useful for thermal storage at least in principle - a lot depends on the energy needed to create the force, overall efficiency, size, scalability etc.

      - Andy.

  • Does look interesting, thanks, I hadn't come across this before. From the various papers I can see it does look like it's at the university research lab stage at the moment (but then so were lasers, LEDs and fibreoptic cables etc etc etc once upon a time...)

  • in reply to Andy Millar

    Recommend the following articles:- ceramics.org/ceramic-tech-today/materials-innovations/solid-state-electrocaloric-materials-heat-up-cooling-performance/

    published January 19, 2024 or

    science.org/doi/10.1126/science.adi5477  published November 16, 2023. 

    Peter Brooks

    Palm Bay 

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