Experimental study on microcapsules of Ag doped ZnO nanomaterials enhanced Oleic-Myristic acid eutectic PCM for thermal energy storage

被引：70
作者：
Dhivya, S. [1 ]
Hussain, S. Imran [1 ]
Sheela, S. Jeya [1 ]
Kalaiselvam, S. [1 ]
机构：
[1] Anna Univ, Dept Appl Sci & Technol, AC Tech Campus, Chennai 600025, India
来源：
THERMOCHIMICA ACTA | 2019年 / 671卷
关键词：
Microcapsules; Ag doped ZnO nanomaterials; Eutectic mixture; Thermal stability; Thermal energy storage; PHASE-CHANGE MATERIAL; PHOTOCATALYTIC ACTIVITY; BINARY CORES; NANOPARTICLES; FABRICATION; NANOFLUIDS; PROPERTY; BEHAVIOR; MIXTURE; SHELL;
D O I：
10.1016/j.tca.2018.11.010
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Novel microcapsules of Ag doped ZnO nanomaterials enhanced Oleic-Myristic acid eutectic phase change materials (PCMs) were synthesized by in-situ polymerization process. X-ray diffraction analysis reveals that Ag doped ZnO nanomaterials has a hexagonal wurtzite structure. Nano enhanced composite PCMs are prepared by mixing different weight percentage of nanomaterials with Oleic-Myristic acid eutectic mixture act as core material. Microscopic analysis reveals the formation of uniform spherical structure of Melamine-Formaldehyde shell over the core material with a perfect core-shell structure. Differential scanning calorimetric analysis showed that microencapsulated PCMs (MEPCMs) melts and freezes in the range of 4.37-5.81 degrees C and 10.84-11.86 degrees C with the latent heat of 75.39-79.35 J/g and 74.9-77.95 J/g. MEPCMs have better thermal conductivity, stability and reliability determined by thermal conductivity, thermogravimetric and thermal cycling analysis. Based on the results, MEPCMs with Ag doped ZnO nanomaterials could be suggested as the potential core material for low temperature thermal energy storage applications.
引用
收藏
页码：70 / 82
页数：13
相关论文
共 35 条
[1]   Micron and submicron patterning of polydimethylsiloxane resists on electronic materials by decal transfer lithography and reactive ion-beam etching: Application to the fabrication of high-mobility, thin-film transistors [J].
Ahn, Heejoon ;
Lee, Keon Jae ;
Childs, William R. ;
Rogers, John A. ;
Nuzzo, Ralph G. ;
Shim, Anne .
JOURNAL OF APPLIED PHYSICS, 2006, 100 (08)
[2]   Preparation, thermal properties and thermal reliability of microencapsulated n-eicosane as novel phase change material for thermal energy storage [J].
Alkan, Cemil ;
Sari, Ahmet ;
Karaipekli, Ali .
ENERGY CONVERSION AND MANAGEMENT, 2011, 52 (01) :687-692
[3]   Preparation, characterization, and thermal properties of microencapsulated phase change material for thermal energy storage [J].
Alkan, Cemil ;
Sari, Ahmet ;
Karaipekli, Ali ;
Uzun, Orhan .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2009, 93 (01) :143-147
[4]  
Borreguero A.M., 2010, IIR P SERIES REFRIGE, V5, P29
[5]   Effects of SiO2 nanoparticles on structure and property of form-stable phase change materials made of cellulose acetate phase inversion membrane absorbed with capric-myristic-stearic acid ternary eutectic mixture [J].
Cai, Yibing ;
Hou, Xuebin ;
Wang, Weiwei ;
Liu, Mengmeng ;
Zhang, Junhao ;
Qiao, Hui ;
Huang, Fenglin ;
Wei, Qufu .
THERMOCHIMICA ACTA, 2017, 653 :49-58
[6]   Preparation and characteristics of microencapsulated palmitic acid with TiO2 shell as shape-stabilized thermal energy storage materials [J].
Cao, Lei ;
Tang, Fang ;
Fang, Guiyin .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2014, 123 :183-188
[7]   Strategies for improving the efficiency of semiconductor metal oxide photocatalysis [J].
Djurisic, Aleksandra B. ;
Leung, Yu Hang ;
Ng, Alan Man Ching .
MATERIALS HORIZONS, 2014, 1 (04) :400-410
[8]   Polystyrene microcapsules with palmitic-capric acid eutectic mixture as building thermal energy storage materials [J].
Doguscu, Derya Kahraman ;
Altmtas, Ayse ;
Sari, Ahmet ;
Alkan, Cemil .
ENERGY AND BUILDINGS, 2017, 150 :376-382
[9]   Self-assembly Synthesis and Properties of Microencapsulated n-Tetradecane Phase Change Materials with a Calcium Carbonate Shell for Cold Energy Storage [J].
Fang, Yutang ;
Zou, Ting ;
Liang, Xianghui ;
Wang, Shuangfeng ;
Liu, Xin ;
Gao, Xuenong ;
Zhang, Zhengguo .
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2017, 5 (04) :3074-3080
[10]   Design and photocatalytic activity of nanosized zinc oxides [J].
Gancheva, M. ;
Markova-Velichkova, M. ;
Atanasova, G. ;
Kovacheva, D. ;
Uzunov, I. ;
Cukeva, R. .
APPLIED SURFACE SCIENCE, 2016, 368 :258-266
1234