IIT Guwahati’s heat transfer liquid for desalination

Researchers from the Indian Institute of Technology (IIT) Guwahati have developed a novel heat transfer fluid based on nanofluids, which is capable of efficiently transferring heat generated using solar power to desalination systems. This advancement promises a practical solution for producing potable water from seawater, addressing the pressing issue of global water scarcity.

However, conventional desalination methods use heat generated by burning fossil fuels, leading to economic and environmental challenges. Concentrated Solar Power (CSP) that uses sunlight to generate heat is a promising solution to this problem.

To address these issues, the researchers explored the use of nanofluids, suspensions of nanoparticles in Deep Eutectic Solvent (DES), as an efficient alternative.

The researchers leveraged the exceptional thermal conductivity and stability of graphene oxide dispersed in a DES — a safe and environmentally friendly solvent. By modifying graphene oxide with an amine functionality, they achieved enhanced dispersion stability, overcoming the tendency of nanoparticles to clump together.

The study has demonstrated the superior thermal properties of nanofluids in heat transfer applications.

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