相变材料在建筑中储存热能的改进、发展和效果综述

Q2 Engineering Designs Pub Date : 2023-07-05 DOI:10.3390/designs7040090
F. Rashid, M. Al‐Obaidi, Anmar Dulaimi, D. M. Mahmood, K. Sopian
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引用次数: 4

摘要

当谈到保证建筑在能源效率方面的适当性能时,建筑围护结构是必须提出的关键组成部分。当一种物质经历相变并释放或吸收一定量的能量以提供有用的热量或冷却时,它被称为相变材料,简称PCM。物质的固态和液态之间经常发生转变。建筑物将相变材料用于各种目的,包括热舒适性、节能、管理建筑材料的温度、减少制冷/制热负荷、效率和热负荷转移。改进的解决方案采用新的方法和途径调查。毫无疑问,研究和应用PCM在建筑应用中的应用可以帮助创建更节能、更环保的建筑,同时也可以提高热舒适性和能耗。它为气候变化、建筑环境中日益增长的能源需求和能源使用优化带来的问题提供了可能的答案。然而,确实还没有进行专门的研究来彻底分析PCM在建筑行业中的相关应用。因此,本文讨论了确定在建筑物中使用相变材料储存热能的当前有效方法的主要策略。通过从公开文献中收集大约50个实例,本研究对2016年至2023年间在建筑应用中使用相变材料作为热能存储的最新研究进行了全面评估。因此,本综述旨在批判性地评估PCM在建筑中的热能存储集成,确定一些需要更多研究的问题,并从大量文献中得出一些重要结论。具体而言,本研究重点介绍了相变材料在建筑围护结构屋顶和外墙上的应用。描述了应用、一般和期望的特性、PCM类型及其热行为。与简单含水的传统储热罐相比,这篇综述表明,含有15%PCM的储热罐可将储热能力提高70%。此外,墙壁中的相变材料降低了不到7°C的内部空气温度,避免了夏季变暖。最后,使用PCM进行空间冷却可以在不同季节节省大量能源。
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A Review of Recent Improvements, Developments, and Effects of Using Phase-Change Materials in Buildings to Store Thermal Energy
When it comes to guaranteeing appropriate performance for buildings in terms of energy efficiency, the building envelope is a crucial component that must be presented. When a substance goes through a phase transition and either gives out or absorbs an amount of energy to provide useful heat or cooling, it is called a phase-change material, or PCM for short. Transitions often take place between the matter’s solid and liquid states. Buildings use PCMs for a variety of purposes, including thermal comfort, energy conservation, managing the temperature of building materials, reducing cooling/heating loads, efficiency, and thermal load shifting. Improved solutions are applied using new method and approach investigations. Undoubtedly, researching and applying PCM use in building applications can help create buildings that are more energy-efficient and environmentally friendly, while also increasing thermal comfort and consuming less energy. It provides a possible answer to the problems posed by climate change, rising energy demand in the built environment, and energy use optimisation. However, it is true that no particular research has yet been conducted to thoroughly analyse the linked PCM applications in the building industry. Thus, the principal tactics are addressed in this paper to determine current and efficient methods for employing PCMs in buildings to store thermal energy. By gathering around 50 instances from the open literature, this study conducts a thorough assessment of the up-to-date studies between 2016 and 2023 that used PCMs as thermal energy storage in building applications. As a result, this review aims to critically evaluate the PCM integration in buildings for thermal energy storage, identify a number of issues that require more research, and draw some important conclusions from the body of literature. Specifically, the building envelope roof and external wall uses of PCMs are highlighted in this research. Applications, general and desired characteristics, and PCM types and their thermal behaviour are described. In comparison to a traditional heat storage tank that simply contains water, this review indicates that a water storage tank containing 15% PCM improves heat storage by 70%. Also, less than 7 °C of internal air temperature was reduced by the PCMs in the walls, which avoided summer warming. Finally, using PCM for space cooling resulted in substantial energy savings across the various seasons.
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来源期刊
Designs
Designs Engineering-Engineering (miscellaneous)
CiteScore
3.90
自引率
0.00%
发文量
0
审稿时长
11 weeks
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