Al_2O_3-H_2O纳米流体相变蓄冷特性研究

Abstract

Al2O3-H2O nanofluids with uniform dispersancy were prepared in which a spot of Al2O3 nanoparticles with a particle size of 20nm suspended in water and the dispersant and supersonic oscillating were added.The cold storage characteristics of the nanofluids and water were experimentally compared.The results show that the nanoparticles in water reduced the subcooling degree of water and the freezing time,and the cold storage capacity of the nanofluids was larger than that of water for the same time.