How researchers push and pull metal for cleaner cooling

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Traditional cooling devices like air conditioners rely on refrigerants that can harmful to humans and the environment. Materials scientist Ichiro Takeuchi and his research group have developed a cooling device free of typical toxic refrigerants, instead relying on a physical property of certain metal alloys. These alloys produce heat when strained through stretching or compression, and absorb heat when that strain is released. This heat absorption produces a cooling effect that could be used for cleaner refrigeration in the future.

Опубликовано:

26 сен 2024

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Комментарии : 15

@prilep5 Год назад

Appliance that is needed is to cool room and store heat in boiler for later use.

@TriAngles3D Год назад

Strain the material at resonant frequency.

@joshwhiting1974 Год назад

Seems very inefficient... vapour compression isn't perfect, but it's the best we have.

@yakut9876 4 месяца назад

Nothing is perfect, ever !

@ProjectPhysX Год назад

Simple rubber bands can also do this and are much cheaper. But this type of cooling is super inefficient compared to closed-cycle refrigerant systems. Maybe there is some edge case applications in spaceflight, but it's certainly not viable for mainstream.

@unvergebeneid Год назад

Have you considered that some materials are more efficient at elastocaloric cooling than others and that rubber bands are not the be-all and end-all here?

@mehdicirtensis Год назад

The science of today is the technology of tomorrow.

@fun_machine Год назад

Private access to air conditioning.

@Hi-Im-RubX Год назад

Ha, Nerd.. Had to do it, sorry. This is a fascinating subject.

@yakut9876 4 месяца назад

We need heating devices that do not operate on electricity and does not need electricity as well.

@DudgeonCurmudgeon Год назад

No offense, but just wondering why a material science researcher would spend 10 years pursuing a mechanical approach to tackle cooling and heating when for decades we've known about Gadolinium's ability to transfer heat in the presence of a magnetic field. Seems wildly impractical to rely on moving parts to bend/twist/compress, rigid metal rods. The only moving parts in a Gadolinium heating/cooling system would be the air fans or fluid pumps.

@boson2916 Год назад

Magnetic refrigeration using magnetocaloric effect

@yakut9876 4 месяца назад

You seem to have a poor understanding of what is " mechanical " ! You see that the condition for defining something as mechanical is movement, and this is completely wrong ! Even what you mentioned is considered a mechanical approach ( not because there is movement ). As far as I know, gadolinium is an expensive element. The mechanical approach is the simplest, most reliable, most efficient, most effective approach in any field as it does not require ( battery, very complex electronics and boring coding ) it is REAL ENGINEERING. Moreover, I do not support the idea of using electricity and induction for heating, as you mentioned, for example, but rather it is better to use strong, switchable permanent magnets instead of low-efficiency electromagnets that produce high thermal and electromagnetic losses.