Preparation and properties of nano composite phase change thermal storage materials

被引：0
|
作者：
Kang Y. [1 ]
Diao Y. [1 ]
Zhao Y. [1 ]
Wang S. [1 ]
机构：
[1] Architectural Engineering Institute, Beijing University of Technology, Beijing
来源：
Diao, Yanhua (diaoyanhua@bjut.edu.cn) | 1600年 / Materials China卷 / 67期
关键词：
Composites; Heat transfer enhancement; Nano-copper/paraffin; Nanomaterials; Phase change thermal storage; Preparation;
D O I：
10.11949/j.issn.0438-1157.20160619
中图分类号：
学科分类号：
摘要：
Phase change materials(PCMs) is the basis of the research of phase change heat storage technology. Aimed at the low thermal conductivity of common phase change material-paraffin, nano particles addition technology was used to enhance the heat transfer performance of paraffin, so the thermal conductivity and thermal diffusion coefficient of paraffin were improved. Through melting test of nano particle-paraffin and observation of settling process of nano particles, Cu nanoparticle and dispersing agent Hitenol BC-10 were selected to prepare a kind of stable nano-particle/paraffin composite phase change storage material, and its thermal physical properties were tested. The experimental results showed that addition of nano-copper particles could increase the thermal conductivity of paraffin apparently. Compared with the pure paraffin, thermal conductivity of solid nano-copper/paraffin increased by 7.9%, the liquid nano-copper/paraffin increased by 3.8%, while the solid and liquid thermal diffusion coefficient increased by 20.6% and 16% respectively. © All Right Reserved.
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页码：372 / 378
页数：6
相关论文
共 21 条
  • [1] Kalogirou S.A., Artificial neural networks in renewable energy systems applications: a review, Renewable and Sustainable Energy Reviews, 5, 4, pp. 373-401, (2001)
  • [2] Li J., Wu X.P., Cold storage and thermal storage technology, Shanghai Energy Lonservation, 4, pp. 78-82, (2005)
  • [3] Cui H.T., Yang F., Thermal Storage Technology and Its Application, (2004)
  • [4] Ismail K.A.R., Alves C.L.F., Modesto M.S., Numerical and experimental study on the solidification of PCM around a vertical axially finned isothermal cylinder, Applied Thermal Engineering, 21, 1, pp. 53-77, (2001)
  • [5] Lamberg P., Approximate analytical model for two-phase solidification problem in a finned phase-change material storage, Applied Energy, 77, 2, pp. 131-152, (2004)
  • [6] Hendra R., Mahlia T.M.I., Masjuki H.H., Thermal and melting heat transfer characteristics in a latent heat storage system using mikro, Applied Thermal Engineering, 25, 10, pp. 1503-1515, (2005)
  • [7] Mettawee E.B.S., Assassa G.M.R., Thermal conductivity enhancement in a latent heat storage system, Solar Energy, 81, 7, pp. 839-845, (2007)
  • [8] Khan M.A., Rohatgi P.K., Numerical solution to a moving boundary problem in a composite medium, Numerical Heat Transfer, 25, 2, pp. 209-211, (1994)
  • [9] Mettawee E.B.S., Assassa G.M.R., Thermal conductivity enhancement in a latent heat storage system, Solar Energy, 81, 7, pp. 839-845, (2007)
  • [10] Ettouney H.M., Alatiqi I., Al-Sahali M., Et al., Heat transfer enhancement in spherical capsules filled with paraffin wax and metal beads, Energy Conversion and Management, 47, 2, pp. 211-228, (2006)
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