A review on phase change material (PCM) for sustainable passive cooling in building envelopes

被动冷却 相变 相变材料 环境科学 热能储存 温室气体 能源消耗 热质量 热惯性 热舒适性 被动式太阳能建筑设计 热的 建筑工程 机械工程 工程类 气象学 工程物理 物理 生态学 电气工程 生物
作者
Hussein J. Akeiber,Payam Nejat,Muhd Zaimi Abd Majid,Mazlan Abdul Wahid,Fatemeh Jomehzadeh,Iman Zeynali Famileh,John Kaiser Calautit,Ben Richard Hughes,Sheikh Ahmad Zaki
出处
期刊:Renewable & Sustainable Energy Reviews [Elsevier BV]
卷期号:60: 1470-1497 被引量:827
标识
DOI:10.1016/j.rser.2016.03.036
摘要

The most significant threat that mankind faces in the 21th century is global warming. Buildings, which account for 40% of global energy consumption and greenhouse gas emissions, play a pivotal role in global warming. Estimates show that their destructive impact will grow by 1.8% per year through 2050, which indicates that future consumption and emissions will be worse than today. Therefore, the impact of cooling systems cannot be ignored, as they, along with ventilation and heating systems, account for 60% of the energy consumed in buildings. Passive cooling techniques are a promising alternative to conventional cooling systems. Of the various passive cooling strategies, thermal energy storage by means of latent heat is an efficient way to increase the thermal inertia of building envelopes, which would reduce temperature fluctuations, leading to the improved thermal comfort of occupants. Phase change materials (PCMs) with high density for thermal energy storage can be efficiently employed to this purpose. This paper reviews recent studies of the application of PCMs for passive cooling in buildings. From the literature, a comprehensive list of different organic, inorganic and eutectic PCMs appropriate for passive cooling in buildings are reviewed. Full-scale testing and numerical modeling were found to be the most popular investigative methods used for experimental and theoretical analysis of PCMs. The combination of these two methods can provide a detailed and valid technique for PCM investigations. Finally, incorporating PCMs into building walls with macro encapsulation was also a dominant interest in previous studies.
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