Collaborative Research: Adaptive Building Enclosure Systems Using Cellular Solid-Solid Phase Change Materials with Variable Transparency

合作研究：使用具有可变透明度的细胞固-固相变材料的自适应建筑围护系统

• 批准号: 1662675
• 负责人: Sergio Granados-Focil
• 金额: $ 19.89万
• 依托单位: Clark University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-07-01 至 2022-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1662675&HistoricalAwards=false
• 关键词: Collaborative; Research; Adaptive; Building; Enclosure

Buildings are responsible for about 40 percent of US energy consumption; a significant fraction of this energy is consumed to counter thermal losses or gains occurring through building envelopes. Passive-solar-design seeks to balance heat loss through the building envelope with solar energy input, while also using thermal mass, shading, and/or ventilation to dampen daily thermal swings. However, implementation of current passive-solar-design tends to be highly context-specific and often entails use of costly mechanical devices and controls. This project aims to study an innovative passive solar building enclosure system that uses cellular solid-solid phase change materials (SS-PCM) with variable transparency. The system relies on passive material-enabled controls and has no mechanically moving parts or electrical components. Successful implementation of SS-PCM foam-based building envelope materials can result in low cost responsive building enclosure systems that self-regulate building thermal comfort. The outcome of this study can lead to new technologies that reduce energy use in buildings, decrease dependence on fossil fuels, and improve the economic competitiveness of the United States. This study is also expected to result in benefits to diverse industries such as building materials, construction, and energy conservation. An innovative outreach plan will be implemented in the form of a competition that engages students at various levels of education in the topics of passive solar design, energy use, and thermal comfort in buildings.The goal of this project is to uncover the fundamental principles that govern the behavior of translucent cellular SS-PCM systems used in realistic building envelopes. Fundamental insights will be gained on (1) heat transfer phenomena occurring in SS-PCM foam systems, (2) the synergistic effects occurring between three material-enabled solar-light irradiation control mechanisms, and (3) structural features and characteristics that lead to high energy-savings in buildings. This study will create enabling knowledge on thermal and optical behavior of SS-PCMs such that building temperatures can be passively regulated year-round under different climate conditions. An integrated experimental and computational program, consisting of multi-physics modeling, materials synthesis, system level integration, and building level evaluation for energy saving, will be performed to achieve the aforementioned goal. This project can transform the use of PCM by relying on radiation energy transfer processes to deliver heat, thus bypassing the low thermal conductivity problem inherent to PCMs. The low thermal conductivity of the SS-PCM foam also delays heat-loss, thus enhancing the ability of the system to remain at a desired temperature.

建筑物约占美国能源消耗的40%;其中很大一部分能源用于抵消建筑物围护结构的热损失或热增益。被动式太阳能设计旨在通过太阳能输入平衡建筑围护结构的热损失，同时还使用热质量，遮阳和/或通风来抑制日常热波动。然而，当前被动式太阳能设计的实现往往是高度特定于上下文的，并且通常需要使用昂贵的机械设备和控制。 该项目旨在研究一种创新的被动式太阳能建筑围护系统，该系统使用具有可变透明度的蜂窝状固-固相变材料（SS-PCM）。该系统依赖于被动材料启用控制，没有机械移动部件或电气组件。SS-PCM泡沫基建筑围护材料的成功实施可以产生低成本的响应式建筑围护系统，其可以自我调节建筑热舒适性。这项研究的结果可以导致新技术，减少建筑物的能源使用，减少对化石燃料的依赖，并提高美国的经济竞争力。这项研究还有望为建筑材料、建筑和节能等不同行业带来好处。一项创新的推广计划将以竞赛的形式实施，让不同教育水平的学生参与被动式太阳能设计，能源使用和建筑热舒适性的主题。该项目的目标是揭示控制现实建筑围护结构中使用的半透明蜂窝SS-PCM系统行为的基本原理。将获得以下方面的基本见解：（1）SS-PCM泡沫系统中发生的传热现象，（2）三种材料启用的太阳光照射控制机制之间发生的协同效应，以及（3）导致建筑物高节能的结构特征和特性。这项研究将创建SS-PCM的热和光学行为的知识，使建筑物温度可以在不同的气候条件下全年被动调节。一个综合的实验和计算程序，包括多物理建模，材料合成，系统级集成，建筑节能水平的评估，将执行，以实现上述目标。该项目可以通过依赖辐射能量传递过程来传递热量，从而绕过PCM固有的低导热性问题，从而改变PCM的使用。SS-PCM泡沫的低导热率也延迟了热损失，从而增强了系统保持在所需温度的能力。

项目成果

Thermo-optically responsive phase change materials for passive temperature regulation

• DOI: 10.1016/j.solener.2019.12.064
• 发表时间: 2020-02
• 期刊: Solar Energy
• 影响因子: 6.7
• 作者: Pramod Mishra;Kelli A. Stockmal;Giuseppe Ardito;Mingjiang Tao;S. Van Dessel;S. Granados-Fócil

Review on solid-solid phase change materials for thermal energy storage: Molecular structure and thermal properties

• DOI: 10.1016/j.applthermaleng.2017.08.161
• 发表时间: 2017-12-25
• 期刊: APPLIED THERMAL ENGINEERING
• 影响因子: 6.4
• 作者: Fallahi, Ali;Guldentops, Gert;Van Dessel, Steven
• 通讯作者: Van Dessel, Steven

A numerical and experimental study of a cellular passive solar façade system for building thermal control

用于建筑热控制的蜂窝被动式太阳能立面系统的数值和实验研究

• DOI: 10.1016/j.solener.2017.03.078
• 发表时间: 2017
• 期刊: Solar Energy
• 影响因子: 6.7
• 作者: Guldentops, Gert;Van Dessel, Steven
• 通讯作者: Van Dessel, Steven

Thermal optimization of a novel thermo-optically responsive SS-PCM coatings for building enclosures

• DOI: 10.1016/j.enbuild.2021.111129
• 发表时间: 2021-05
• 期刊: Energy and Buildings
• 影响因子: 6.7
• 作者: Zhiying Xiao;Pramod Kumar Mishra;A. M. Nejad;Mingjiang Tao;S. Granados-Fócil;S. Dessel

A numerical study of adaptive building enclosure systems using solid–solid phase change materials with variable transparency

• DOI: 10.1016/j.enbuild.2018.02.054
• 发表时间: 2018-05
• 期刊: Energy and Buildings
• 影响因子: 6.7
• 作者: G. Guldentops;G. Guldentops;Giuseppe Ardito;Mingjiang Tao;S. Granados-Fócil;S. Dessel