空调用纳米有机复合相变蓄冷材料分散稳定性 武卫东.pdfVIP

2015 34 5 CHEMICAL INDUSTRY AND ENGINEERING PROGRESS 1371 200093 MWNTsAl O Fe O 73.7 26.3 2 3 2 3 / SDBS SDBS MWNTs Al O Fe O 2131 31 90min 2 3 2 3 TK 02 A 100066132015 DOI 10.16085/j.issn.1000-6613.2015.05.031 Dispersion stability of nano-organic composite phase change materials for cool storage in air-conditioning WU WeidongTANG HengboMIAO Pengke ZHANG Hua Institute of Refrigeration and Cryogenic EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China Abstract The dispersion stability of nanomaterials plays a decisive role on retaining the good performance of nano-organic composite phase change materials (PCMs)when nanomaterials are used as heat transfer enhancement additive of PCMs. To prepare nano-organic composite PCMs for air-conditioning cool storagenanomaterials with high thermal conductivityincluding MWNTsAl2O3 and Fe O were respectively added into the organic composite PCMs of caprylic acid/myristyl alcohol 2 3 (with a mass ratio of 73.7 to 26.3)developed previously in our study. The dispersing stability of nano-organic composite PCMs was analyzed indirectly by measuring their thermal conductivity coefficients. The kinds and concentrations of nano-material and dispersant are key influencing factors as well as ultra