The work presented in this report is part of the Thermogeology project. Ground source heatudpumps are becoming an increasingly popular method of heating/cooling in the UK. However,udlittle work has been published on the long term sustainability of such schemes, partly becauseudinsufficient time has elapsed to allow long term data to be collected but also because closed-loopudschemes are not required to be regulated. The aim of the work was to determine which factors,udgeological, hydrogeological and scheme-specific e.g. size, spacing and operating regime wereudmost important in ascertaining whether a vertical closed-loop ground source heat pump schemeudwould be successful and sustainable. The impact of interference effects when a number ofudboreholes are located in close proximity were also considered. Guideline values for boreholeudspacing are typically of the order of 5 to 10 metres but modelling studies were used touddemonstrate whether such values are appropriate. The work presented in this report comprisesudthree parts – a review of the current application of closed-loop GSHPs in the UK, an assessmentudof the range of parameters required for a successful scheme and scenario modelling using theudheat transport model Feflow®.
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机译：本报告中介绍的工作是热地质项目的一部分。地源热泵在英国已成为一种越来越流行的加热/冷却方法。但是，有关此类方案的长期可持续性的文献很少，部分原因是已经花费了足够的时间来收集长期数据，而且还因为不需要对闭环的方案进行监管。这项工作的目的是确定哪些因素，例如预算，水文地质和计划特定的因素。尺寸，间距和运行方式对于确定垂直闭环地源热泵方案是否是成功和可持续的至关重要。还考虑了许多 udm钻孔紧邻时的干扰效应的影响。井眼/井距的指导值通常在5至10米的数量级，但是模型研究用于证明这种值是否合适。本报告中介绍的工作包括三个部分–回顾英国闭环GSHP的当前应用情况，使用 udheat传输模型Feflow®对成功的方案和情景建模所需的参数范围进行评估 ud 。
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