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12/10/2019 - S & T

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October 12, 2019

What is meant by Elastocaloric Effect? How does it contribute to the reduction of global warming? Discuss the advantages of elastocaloric refrigeration.(150 Words)

Refer - The Indian Express

Enrich the answer from other sources, if the question demands.


 

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IAS Parliament 5 years

KEY POINTS

When rubbers bands are twisted and untwisted, it produces a cooling effect. This is called the “elastocaloric” effect.

Reduction in global arming

·        Researchers from multiple universities have found that the elastocaloric effect, if harnessed, may be able to do away with the need of fluid refrigerants used in fridges and air-conditioners.

·        These fluids are susceptible to leakages, and can contribute to global warming. The results of the research were published in the journal Science on Friday.

·        To demonstrate this setup, the researchers developed a fridge the size of a ballpoint pen cartridge that was able to bring down the temperature of a small volume of water by 8°C in a few seconds.

·        They suggested that their findings may lead to the development of greener, higher-efficiency and low-cost cooling technology.

Advantages of Elastocaloric Refrigeration

·        More efficient than vapor-compression refrigeration as the twisted rubbers are used

·        No gases or volatile liquids involved since there is no need for refrigerants

·        Non-hazardous, reducing GHG emission and environment friendly

·        Re-usable and recyclable parts and components

 

Vendhan 5 years

TN ku

IAS Parliament 5 years

Good answer. Keep Writing.

Madeshwaran 5 years

Kindly review 

IAS Parliament 5 years

Good answer. Keep Writing.

DHARU 5 years

Kindly review!

IAS Parliament 5 years

Try to explain how elastocaloric effect reduce Global warming. Keep Writing.

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