Preparation and properties of decyl alcohol-palmitic acid/expanded graphite low temperature composite phase change material

被引：0
|
作者：
Zhou S. [1 ,2 ]
Zhang X. [1 ]
Liu S. [2 ]
Chen Q. [1 ]
Xu X. [1 ]
Wang Y. [1 ]
机构：
[1] Cool Storage Technology Institute, Shanghai Maritime University, Shanghai
[2] Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing
来源：
Huagong Xuebao/CIESC Journal | 2019年 / 70卷 / 01期
关键词：
Adsorption; Composites; Heat conduction; Phase change; Stability;
D O I：
10.11949/j.issn.0438-1157.20180646
中图分类号：
学科分类号：
摘要：
To find a low temperature phase change material with a temperature range of 2-3℃, a sterol-palmitic acid (DA-PA) binary composite phase change material was prepared by eutectic method based on theoretical calculation. To improve the thermal conductivity, the DA-PA/EG composite phase change material with the optimal mass ratio of 15:1 was obtained by using the porous characteristics of expanded graphite (EG). The structure and properties of the composite phase change material were studied by DSC, step cooling curve, FI-TR, SEM and high-low temperature cycle test. The results show that when the mass ratio of DA-PA was 97.8:2.2, the phase change temperature was 2.9℃ and the latent heat was 203.6 J•g-1. After vacuum adsorption, DA-PA was uniformly encapsulated in the porous network structure of EG. The phase change temperature of DA-PA/EG was 2.7℃, the latent heat was 193.9 J•g-1, and the thermal conductivity was 1.416W•(m•K)-1, which was 4.3 times higher than DA-PA. After 100 times of high-low temperature cycles, the thermal properties of DA-PA/EG did not change much and still maintained good stability. The results show that the DA-PA/EG composite phase change material has great application value in the cold chain logistics. © All Right Reserved.
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页码：290 / 297
页数：7
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共 31 条
  • [1] Zhang R.Y., Phase Change Materials and Phase Change Energy Storage Technology, (2009)
  • [2] Hasan M.I., Bashir H.O., Shadhan A.O., Experimental investigation of phase change materials for insulation of residential buildings, Sustainable Cities & Society, 36, 10, pp. 42-58, (2018)
  • [3] Laaouatni A., Martaj N., Bennacer R., Et al., Phase change materials for improving the building thermal inertia, Energy Procedia, 139, 11, pp. 744-749, (2017)
  • [4] Ahmed A., Siddique A.K., Ludwig N., Et al., Design and optimization of a hybrid air conditioning system with thermal energy storage using phase change composite, Energy Conversion and Management, 169, 5, pp. 404-418, (2018)
  • [5] Tang H.B., Wu W.D., Miao P.K., Et al., Theoretical prediction and research of binary organic phase change cold storage materials for air conditioning, New Chemical Materials, 44, 3, pp. 121-123, (2016)
  • [6] Kazem B., Mahdi K., Seyed A.K., Et al., The experimental appraisement of the effect of energy storage on the performance of solar chimney using phase change material, Solar Energy, 169, 5, pp. 411-423, (2018)
  • [7] Su D., Jia Y., Lin Y., Et al., Maximizing the energy output of a photovoltaic-thermal solar collector incorporating phase change materials, Energy & Buildings, 153, 8, pp. 382-391, (2017)
  • [8] Zhang X.L., Chen Y.F., Zeng T., Et al., Development of phase change materials for pharmaceutical cold chain logistics, Refrigeration and Air-conditioning, 17, 7, pp. 43-46, (2017)
  • [9] Melone L., Altomare L., Cigada A., Et al., Phase change material cellulosic composites for the cold storage of perishable products: from material preparation to computational evaluation, Applied Energy, 89, 1, pp. 339-346, (2012)
  • [10] Tan A.L., Chen L., Liu J.L., Freeze-thaw characteristics of superabsorbent resin composite phase change materials, Chemical Industry and Engineering Progress, 30, 10, pp. 2262-2265, (2011)
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