Revolutionary plastic crystals promise greener cooling solutions
Scientists have developed a new type of cooler, distinguished by special "plastic" crystals. This cooler can potentially replace the traditional cooling systems found in refrigerators and air conditioners.
Researchers from Deakin University in Australia, led by Dr. Jenny Pringle, have created innovative crystals that could revolutionize cooling technology. These "plastic crystals" (OIPC) can absorb heat when subjected to extreme pressure, potentially paving the way for more environmentally friendly refrigerators and air conditioners.
Traditional cooling devices work on the principle of liquid circulation, absorbing heat through evaporation and condensation cycles. Unfortunately, this method has its drawbacks, as it can lead to leaks that release substances into the atmosphere, contributing to the greenhouse effect. The new crystals could offer an alternative to these liquids.
When subjected to high pressure, the crystal molecules shift from a random orientation to an ordered lattice structure. As the pressure decreases, the crystals return to a disordered state, absorbing heat and cooling their surroundings.
Previous research on "pressure-based" cooling didn't yield satisfactory results because the materials operated at impractical temperatures. However, the crystals developed in Australia work effectively within a range of approximately -37°C to 10°C, which is well-suited for the requirements of domestic refrigerators and air conditioners.
Technological challenges
Currently, the technology is still in the laboratory testing phase. The necessary pressures are extremely high, similar to those found thousands of metres underwater. Additionally, with repeated use, the crystals may lose their heat-absorbing capacity due to increasing strain on their structure. Despite these challenges, this ongoing research could eventually lead to the development of more eco-friendly cooling solutions.
