Coupling Phase Change Materials and Model Predictive Controls for Energy Efficiency and Thermal Comfort in Canadian Buildings

耦合相变材料和模型预测控制以提高加拿大建筑的能源效率和热舒适度

• 批准号: RGPIN-2017-05481
• 负责人: Kavgic, Miroslava
• 金额: $ 1.68万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638532
• 关键词: Coupling; Phase; Change; Materials; Model

Envelope thermal performance requirements are becoming more stringent and the most common compliance approach is to add more insulation. In many cases this may not be practical due to space constraints and greater use of glazing façade systems. An alternative approach is to increase building envelope’s thermal storage capacity by incorporating Phase Change Materials. PCMs are innovative products able to store and release large quantities of heat per unit of mass through a phase change from liquid to solid and back near typical room temperatures. The idea is that PCM absorbs part of a building’s heat load during the daytime as it melts and releases this heat during the cooler night-time by returning to its solid phase. In the summer, the released heat would be flushed out using natural ventilation or fans, while in the winter it would reduce the heating requirements.

围护结构的热性能要求变得越来越严格，最常见的合规方法是添加更多的绝缘材料。在许多情况下，由于空间限制和更多地使用玻璃幕墙系统，这可能不切实际。另一种方法是通过加入相变材料来增加建筑围护结构的储热能力。相变材料是一种创新产品，能够通过从液体到固体的相变来储存和释放单位质量的大量热量，并在接近典型室温的情况下进行存储和释放。其想法是，PCM在白天融化时吸收建筑物的部分热负荷，并在较凉爽的夜间通过返回固相释放热量。在夏天，释放的热量将通过自然通风或风扇排出，而在冬天，它将减少供暖需求。