热网是向建筑物提供低碳热量的有效途径。英国目前的系统主要基于化石燃料热电联产（CHP）。如果要实现英国的脱碳目标，这种系统在长期内不太可能被接受。随着英国电网最终变得更加清洁，热泵可以提供一种替代的环保供热方式。热网最适合大城市等热量需求密度高的地区。在这些城市环境中，热量可能更容易通过其他来源获取。 本文研究了地下铁路（UR）作为一种有吸引力的全年热源。通过铁路通风系统回收空气源已显示出巨大的潜力。然而，典型的深埋地下隧道周围的土壤也含有大量热量。这种低品位的能源可能由附近的用户通过地源热泵（GSHP）提取。为了充分开发和利用这一潜在资源，需要了解GSHPs与邻近URs的相互作用。本文对这些系统之间的相互作用进行了数值研究。 引文:2017年冬季会议，内华达州拉斯维加斯，会议论文

Heat networks can be an effective way of supplying low carbon heat to buildings. Current UK systems are largely based on fossil fuel Combined Heat and Power (CHP). Such systems are unlikely to be acceptable in the long term, if the decarbonisation targets in the UK are to be attained. As the UK's electricity grid eventually becomes cleaner, heat pumps could provide an alternative environmental friendly heat supply. Heat networks are best suited to areas with high heat demand density such as big cities. Within these urban settings, heat is potentially more easily accessible through alternative sources. This paper investigates Underground Railways (UR) as an attractive year-round heat source. Air source recovery through the ventilation system of a railway has been shown to have significant potential. However, the soil surrounding a typical deep level UR tunnels also contain a large amount of heat. This low grade energy could potentially be extracted by nearby users through Ground Source Heat Pumps (GSHP). In order to fully explore and exploit this potential resource, the interactions of GSHPs with neighbouring URs requires understanding. This paper presents numerical investigations into the interactions between these systems.