Innovation That Matters

Refrigerator | Photo source nrd on Unsplash

Eco-friendly crystals could replace chemical coolants in fridges


The way we currently cool refrigerators and air conditioners is unsustainable, and these plastic crystals could replace traditional coolants


Become a member today and get early access to the ideas transforming our world from just £39 per month*

Exclusive member benefits:

  • Access to over 13,000 innovations
  • Monthly horizon scanning reports
  • Exclusive feature articles

Already a member? Sign in here

Spotted: A joint British-Spanish team of researchers has found a green alternative to the chemicals we use to keep refrigerators cool. The discovery could lead to less toxic waste and reduce energy consumption, according to the scientists.

Most refrigerators (and air conditioners) use toxic and flammable gases — hydrofluorocarbons and hydrocarbons (HFCs and HCs) — to stay work. Appliances compress and expand HFC and HCs to keep things cool.

The team achieved the same cooling affect using a solid alternative that is cheaper, more efficient and less toxic. Plastic crystals of neopentylglycol (NPG) cool when their microscopic structure is changed. The crystals are not really plastic — that term refers to their malleability. Their chemical makeup makes it easier to compress. NGP is already widely used for other purposes, including to make paints, polyesters and lubricants.

The team is currently working with Cambridge Enterprise to bring their findings to the commercial market.




Download PDF

Springwise Services:
Our expertise in spotting the latest innovations is the best resource to empower your team’s future planning.

Find out More