Development of prototype using phase change materials to enhance active thermal mass energy storage in buildings to achieve low energy and comfortable indoor climates.

开发使用相变材料的原型，以增强建筑物中的主动热质量能量存储，以实现低能耗和舒适的室内气候。

• 批准号: 720589
• 金额: $ 8.68万
• 依托单位: ACTIMASS LIMITED
• 依托单位国家: 英国
• 项目类别: GRD Development of Prototype
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=720589
• 关键词: Development; prototype; using; phase; change

The project aims to develop a prototype phase change cooling product with increased abilityto store and transfer energy.Low energy buildings frequently feature highly insulated facades, carefully designed daylighting & airtight building construction. However, as these initiatives drive down energyusage, theconditioning of the incoming ventilation air becomes a significantly larger proportion of theenergy usage.This presents an opportunity to further reduce the energy consumption by actively usingthermal mass, although achieving low energy comfort with the controllability users requirehasproved difficult. The limitations of storage capacity & thermal conductivity of the mass, haverestricted the ability of such systems to deal with higher loads or more extreme temperatures.This lack of conditioning power can be improved by positioning air and fluid distributionchannels close to the exposed ceiling surface and the incoming air path. This maximises theability of the system to quickly influence the temperature of the occupied space.As a further improvement, phase change material (pcm) properties, are added to (1) create amore responsive delivery system able to provide closer indoor temperature control as desiredby occupants. (2) Reduce operating CO² emissions, 3) Provide more powerful thermal massbased systems able to compete with refrigerant air conditioning systems.

该项目旨在开发一种相变制冷产品的原型，该产品具有更高的储存和传输能量的能力。低能耗建筑通常具有高度隔热的立面，精心设计的采光和气密建筑结构。然而，随着这些措施降低了能源使用，进入的通风空气的调节在能源使用中所占的比例显著增加。这为通过积极利用热质量进一步降低能耗提供了机会，尽管实现低能耗舒适性和用户要求的可控性已经证明是困难的。质量的存储容量和导热性的限制限制了这种系统处理更高负载或更极端温度的能力。这种调节能力的缺乏可以通过将空气和流体分配通道定位在靠近暴露的天花板表面和进入空气路径来改善。这最大化了系统快速影响占用空间的温度的能力。作为进一步的改进，相变材料（PCM）特性被添加以（1）产生能够提供居住者所期望的更接近的室内温度控制的更灵敏的输送系统。(2)减少运行中的二氧化碳排放，3）提供更强大的基于热质量的系统，能够与制冷剂空调系统竞争。