应用化学 ›› 2024, Vol. 41 ›› Issue (12): 1780-1789.DOI: 10.19894/j.issn.1000-0518.240173

• 研究论文 • 上一篇    下一篇

用于建筑节能形状稳定相变材料的设计与应用

贺洁为1(), 段绍伟2, 李小川1   

  1. 1.邵阳职业技术学院建筑工程学院,邵阳 422000
    2.中南林业科技大学土木工程学院,长沙 410004
  • 收稿日期:2024-05-30 接受日期:2024-08-15 出版日期:2024-12-01 发布日期:2025-01-02
  • 通讯作者: 贺洁为
  • 基金资助:
    邵阳市科技局课题(2023ZD0145);邵阳职业技术学院院级教研教改课题(23JG013);湖南省教育厅科学研究项目(24B1123)

Design and Application Research of Shape-Stabilized Phase Change Materials for Building Energy Conservation

Jie-Wei HE1(), Shao-Wei DUAN2, Xiao-Chuan LI1   

  1. 1.School of Architecture and Engineering,Shaoyang Polytechnic,Shaoyang 422000,China
    2.School of Civil Engineering,Central South University of Forestry and Technology,Changsha 410004,China
  • Received:2024-05-30 Accepted:2024-08-15 Published:2024-12-01 Online:2025-01-02
  • Contact: Jie-Wei HE
  • About author:373652240@qq.com
  • Supported by:
    Shaoyang Science and Technology Bureau Project(2023ZD0145);Shaoyang Vocational and Technical College Teaching Research and Reform Project(23JG013);the Scientific Research Project of Hunan Provincial Department of Education(24B1123)

摘要:

相变储能材料具有储能密度大、性能稳定、可循环使用和对环境友好等优点,在建筑领域具有广阔的应用前景。 以棕榈酸甲酯-月桂酸共熔相变材料为研究对象,以白炭黑、十二醇作为稳定剂,以氢化聚苯乙烯-丁二烯-聚苯乙烯(SEBS)作为支撑材料,研究不同原料配比对相变材料的相变温度和相变潜热的影响规律,并采用微胶囊技术将棕榈酸甲酯-月桂酸共熔相变材料与磷石膏建筑材料相结合,制作相变模拟房间,探究其在建筑领域的应用可行性。 研究结果表明, m(棕榈酸甲酯)∶m(月桂酸)=6∶4时,其相变温度为24.5~28.5 ℃和相变潜热为172.0 kJ/kg均适用于建筑领域; 相变材料熔融过程中的原始相变焓为172.0 kJ/kg,200次循环后变为167.3 kJ/kg,导热系数为0.256 W/(m·K); 没有添加相变材料的模拟房间在红外灯模拟太阳光照射下无论是升温还是降温均要比加入有机共熔相变材料的模拟房间要快,相变储能材料的掺入对建筑室内温度具有明显的调控效果。

关键词: 建筑节能, 相变材料, 微胶囊技术, 温度调控

Abstract:

Phase change energy storage materials have advantages such as high energy storage density, stable performance, recyclability and environmental friendliness, making them promising for wide applications in the field of construction. This paper focuses on the research of palm oil methyl ester-lauric acid eutectic phase change materials with white carbon black and dodecanol as stabilizers and SEBS as supporting materials. It investigates the influence of different material ratios on the phase transition temperature and latent heat of the phase change materials. Additionally, microencapsulation technology is employed to combine the palm oil methyl ester-lauric acid eutectic phase change materials with gypsum building materials, creating a phase change simulation room to explore its feasibility in the construction field. The research results show that when m (methyl palmitate)∶m(lauric acid)=6∶4, the phase transition temperature is 24.5~28.5 ℃ and the latent heat of phase transition is 172.0 kJ/kg, both of which are suitable for the construction field; The original enthalpy of phase change during the melting process of phase change materials is 172.0 kJ/kg, which changes to 167.3 kJ/kg after 200 cycles, and the thermal conductivity is 0.256 W/(m·K); The simulated room without adding phase change materials heats up and cools down faster under simulated sunlight from infrared lamps than the simulated room with organic eutectic phase change materials. The addition of phase change energy storage materials has a significant regulating effect on indoor temperature in buildings.

Key words: Building energy conservation, Phase change materials, Microencapsulation technology, Temperature regulation

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