Building envelope integrated solar thermal systems for space and water heating

真空平板太阳能热系统通过收集更大比例的可用太阳能资源来提供优于两种真空管系统的优势，并通过允许更高的温度和更高的效率来实现平板系统。压力低于0.1帕的真空围护结构可以有效地抑制气体传导和对流，从而开发出更适合于建筑围护结构集成的薄板。太阳能的可用性以及由此产生的太阳能热能经常与对水或空间供暖的热需求不同步，因此需要有效的储热来满足需求。在这个项目中，将开发耐用真空平板系统的设计，并生产用于性能评估的实验室规模的原型系统。将开发一个与不同类型的热储能相关联的真空板太阳能系统的详细模型。这一模型将允许对热储存的不同选择和方法进行模拟，包括敏感的、潜热的和热化学的，以评估一系列典型的热水和空间供暖负荷可实现的太阳能节约率水平。样机商店将在实验室开发和表征，然后在室外测试包括真空平板集热器和热力存储的集成系统。

Vacuum flat plate solar thermal systems offer advantages over both vacuum tube systems by collecting a greater fraction of the available solar resource and flat plate systems by allowing higher temperatures to be achieved with better efficiency. The vacuum envelope if at a pressure of less than 0.1Pa effectively suppresses gaseous conduction and convection allowing thin panels to be developed with increased suitability for building envelope integration.Solar energy availability and thus solar thermal heat generation is often out of phase with heat demand for water or space heating, requiring effective thermal storage to allow demands to be met. In this project designs for durable vacuum flat plate systems will be developed and prototype laboratory scale systems produced for performance evaluation. A detailed model of vacuum plate solar systems linked to different types of thermal storage will be developed. This model will allow different options and approaches for thermal storage, sensible, latent and thermochemical to be simulated to assess the level of solar savings fractions that can be achieved for a range of representative hot water and space heating loads. Prototype stores will be developed and characterised in the lab before outdoor testing of an integrated system comprising vacuum flat plate collector and thermal store.