正十八烷/铜纳米颗粒混合纳米流体在相变过程中的热性质：一项分子动力学研究

Thermal Properties of the Mixed n-Octadecane/Cu Nanoparticle Nanofluids during Phase Transition: A Molecular Dynamics Study.

作者信息

Li Qibin, Yu Yinsheng, Liu Yilun, Liu Chao, Lin Liyang

机构信息

Chongqing Key Laboratory of Heterogeneous Material Mechanics, College of Aerospace Engineering, Chongqing University, Chongqing 400044, China.

Key Laboratory of Low-grade Energy Utilization Technology & System, Ministry of Education, College of Power Engineering, Chongqing University, Chongqing 400044, China.

出版信息

Materials (Basel). 2017 Jan 5;10(1):38. doi: 10.3390/ma10010038.

DOI:10.3390/ma10010038

PMID:28772397

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5344571/

Abstract

Paraffin based nanofluids are widely used as thermal energy storage materials and hold many applications in the energy industry. In this work, equilibrium and nonequilibrium molecular dynamics simulations are employed to study the thermal properties of the mixed nanofluids of -octadecane and Cu nanoparticles during phase transition. Four different nanofluids systems with different mass ratios between the -octadecane and Cu nanoparticles have been studied and the results show that Cu nanoparticles can improve the thermal properties of -octadecane. The melting point, heat capacity and thermal conductivity of the mixed systems are decreased with the increasing of the mass ratio of -octadecane.

摘要

石蜡基纳米流体被广泛用作热能储存材料，并在能源行业有许多应用。在这项工作中，采用平衡和非平衡分子动力学模拟来研究十八烷和铜纳米颗粒的混合纳米流体在相变过程中的热性质。研究了四种不同质量比的十八烷和铜纳米颗粒的纳米流体系统，结果表明铜纳米颗粒可以改善十八烷的热性质。混合系统的熔点、热容量和热导率随着十八烷质量比的增加而降低。