Preparation and hygrothermal properties of composite phase change humidity control materials

被引：45

作者：

Chen, Zhi ^{[1
]}

Qin, Menghao ^{[1
]}

机构：

[1] Nanjing Univ, Sch Architecture & Urban Planning, Nanjing 210093, Jiangsu, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2016年 / 98卷

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

Microencapsulated phase change material; Humidity control material; Energy efficiency; Passive hygrothermal design; MICROENCAPSULATED PARAFFIN; SHELL; ACID;

D O I：

10.1016/j.applthermaleng.2015.12.096

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A novel phase change humidity control material (PCHCM) was prepared by using PCM microcapsules and different hygroscopic porous materials. The PCHCM composite can regulate the indoor hygrothermal environment by absorbing or releasing both heat and moisture. The PCM microcapsules were synthesized with methyl triethoxysilane by the sol-gel method. The vesuvianite, sepiolite and zeolite were used as hygroscopic materials. The scanning electron microscopy (SEM) was used to measure the morphology profiles of the microcapsules and PCHCM. The differential scanning calorimetry (DSC) and the thermal gravimetric analysis (TGA) were used to determine the thermal properties and thermal stability. Both the moisture transfer coefficient and moisture buffer value (MBV) of different PCHCMs were measured by the improved cup method. The DSC results showed that the SiO2 shell can reduce the super-cooling degree of PCM. The super-cooling degrees of microcapsules and PCHCM are lower than that of the pure PCM. The onset temperature of thermal degradation of the microcapsules and PCHCMs is higher than that of pure PCM. Both the moisture transfer coefficient and MBV of PCHCMs are higher than that of the pure hygroscopic materials. The results indicated the PCHCMs have better thermal properties and moisture buffer ability. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：1150 / 1157

页数：8

共 30 条

[21] Dataset for validating 1-D heat and mass transfer models within building walls with hygroscopic materials [J].

Rafidiarison, Helisoa ;

Remond, Romain ;

Mougel, Eric .

BUILDING AND ENVIRONMENT, 2015, 89 :356-368

[22] Significance of humidity and temperature on skin and upper airway symptoms [J].

Reinikainen, LM ;

Jaakkola, JJK .

INDOOR AIR, 2003, 13 (04) :344-352

[23] Potentials and prospects for renewable energies at global scale [J].

Resch, Gustav ;

Held, Anne ;

Faber, Thomas ;

Panzer, Christian ;

Toro, Felipe ;

Haas, Reinhard .

ENERGY POLICY, 2008, 36 (11) :4048-4056

[24]

Rode C., 2005, P AIVC C EN PERF REG, P21

[25]

Rode C., 2007, J ASTM INT, V4, P1, DOI DOI 10.1520/JAI100369

[26] Upper limits of air humidity for preventing warm respiratory discomfort [J].

Toftum, J ;

Jorgensen, AS ;

Fanger, PO .

ENERGY AND BUILDINGS, 1998, 28 (01) :15-23

[27] Preparation of microencapsulated medium temperature phase change material of Tris(hydroxymethyl)methyl aminomethane@SiO2 with excellent cycling performance [J].

Wu, Chang-Bo ;

Wu, Gang ;

Yang, Xi ;

Liu, Yu-Jing ;

Liang, Tao ;

Fu, Wei-Fei ;

Wang, Mang ;

Chen, Hong-Zheng .

APPLIED ENERGY, 2015, 154 :361-368

[28] Pickering emulsion: A novel template for microencapsulated phase change materials with polymer-silica hybrid shell [J].

Yin, Dezhong ;

Ma, Li ;

Liu, Jinjie ;

Zhang, Qiuyu .

ENERGY, 2014, 64 :575-581

[29] Assessing the moisture buffering performance of hygroscopic material by using experimental method [J].

Zhang, Huibo ;

Yoshino, Hiroshi ;

Hasegawa, Kenichi .

BUILDING AND ENVIRONMENT, 2012, 48 :27-34

[30] Review on microencapsulated phase change materials (MEPCMs): Fabrication, characterization and applications [J].

Zhao, C. Y. ;

Zhang, G. H. .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2011, 15 (08) :3813-3832

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