Experimental study on characteristics of lowtemperature phase change cool storage for nanofluids

Suspending a spot of TiO₂ nanoparticles(particle size 20 nm) in low temperature BaCl₂ solution, through supersonic oscillating, prepares the TiO₂-BaCl₂-H₂O nanofluid with volume fraction of 113%．Compares the nanofluid and BaCl₂ solution in cool storage characteristics by the experiments. The results show that the nanofluid has remarkably lower supercooling degree, and that the cool storage capacity of the nanofluid is larger than that of BaCl₂ solution during the same time.