Integrating Heat Pumps with Novel Solar Thermal Collectors to Decarbonise Space and Water Heating

我们的项目将有助于降低与空间和水加热相关的运营成本，并将有助于降低热量。我们的建议是将我们的新型太阳能热创新与空气源热泵相结合，以提供空间和热水。我们的创新使我们的太阳能热板可以在不损坏的情况下冻结，从而消除了防冻剂的需求。这意味着我们可以使用水作为热交换流体，并设计更大的系统，而不受尺寸的限制。我们的系统可以安全地过热，允许更大的阵列，而不需要相应的大容量水存储来防止过热。使用防冻液的现有系统的大小调整为，当防冻剂降级并需要更换时，它们永远不会过热。这意味着，该系统的大小适合一年中最晴朗的一天，并与可用水存储相匹配，一年中的大部分时间都不大。在英国，一个4.5平方米的真空管集热器(30个真空管)需要大约250升水才能防止它在夏天过热。由于我们的系统使用水作为热交换流体，我们可以允许它过热，拥有更大的阵列，并在全年获得有用的能量，当在较冷的月份需要空间供暖时，这些能量可以为空间供暖做出贡献。我们用20平方米的真空管集热器证明了这一创新，但在一个奶牛场只有200升的储水量。如果这是一个防冻型系统，它将需要1200升的水存储，以防止夏季过热。在大多数情况下，这将是代价高昂和不切实际的。

Our project will help reduce operational costs associated with space and water heating and will help decarbonise heat. Our proposal is to integrate our novel solar thermal innovation with air source heat pumps to provide space and water heating. Our innovation allows our solar thermal panels to freeze without damage eliminating the requirement for antifreeze. This means we can use water as the heat exchange fluid and design larger systems without being size constrained. Our system can overheat safely allowing larger arrays without the corresponding large water storage required to prevent overheating. Existing systems that use antifreeze are sized so that they never overheat as the antifreeze degrades and requires replacement. This means that the system is sized for the sunniest day of the year and matched with the available water storage and is undersized for most of the year. In the UK a 4.5 sqm evacuated tube collector (30 evacuated tubes) would require around 250 litres of water to prevent it overheating in summer. As our system uses water as the heat exchange fluid we can allow it to overheat, have larger arrays and get useful energy throughout the year that can contribute to space heating when it is needed in the cooler months. We have proven this innovation with 20 sqm of evacuated tube collector but with only 200 litre of water storage on a dairy farm. If this was an antifreeze type system it would require 1,200 litres of water storage to prevent overheating in summer. This would be costly and impractical to implement in most cases.