Abstract Photovoltaic as well as solar thermal systems have been particularly useful for harvesting the inexhaustible energy from the sun and to reduce the carbon emissions normally produced by burning fossil fuels. In either of these cases, reaching a higher efficiency obviously brings substantial benefits, and while much research has been performed on PV efficiency, most research has focused on the solar thermal collectors themselves, while our approach considers the system’s perspective by optimizing the pump speed based on the performance of the various heat exchangers within the full system. In order to test the theory, a prototype solar thermal system was built, in which the pump speed was adjusted by considering: the water demand, the input and output temperatures of the solar panel and the output temperature of the produced hot water. By combining the solar thermal system with an existing gas boiler and continuously adjusting the pump speed, a reduction of between 10% and 30% in gas consumption and 5–10% in electricity consumption was observed.

中文翻译：

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太阳能热系统的泵速优化

摘要 光伏和太阳能热系统对于从太阳中获取取之不尽的能量和减少通常由燃烧化石燃料产生的碳排放特别有用。在这两种情况中的任何一种情况下，达到更高的效率显然都会带来巨大的好处，虽然已经对光伏效率进行了很多研究，但大多数研究都集中在太阳能集热器本身上，而我们的方法通过优化泵速来考虑系统的观点整个系统中各种热交换器的性能。为了验证该理论，搭建了一个原型太阳能热系统，其中泵速通过考虑：需水量、太阳能电池板的输入和输出温度以及产生的热水的输出温度来调整。