Monitoring the impact of intensive shallow geothermal energy use on groundwater temperatures in a residential neighborhood
Monitoring the impact of intensive shallow geothermal energy use on groundwater temperatures in a residential neighborhood
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DOI：
10.1186/s40517-019-0123-x
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发表时间：
2019-03-19
影响因子：
4.2
通讯作者：
Dietrich, Peter
中科院分区：
文献类型：
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作者：
Vienken, Thomas;Kreck, Manuel;Dietrich, Peter
浅层地热能的使用日益受到重视，因为它是以化石燃料为基础的空间供暖和制冷、提供热水以及在整个欧洲进行季节性储热的适当替代办法。随着浅层地热能大规模利用的出现，人们对潜在的生态和经济影响进行了生动的讨论，但实际的实地数据却很少。因此，在德国的科隆市的一个居民区，在浅层地热的强烈利用下，启动了一项为期30年的地下水温度监测计划。监测计划的目的是通过查明地下水温度的密集热利用的影响，克服现有的数据不足，并促进对城市地下水温度演变的理解。结果表明，即使在这种情况下，单个房屋的能源需求和浅层地热系统的能源提取率非常小，浅层地热用户的积累对整体地下水温度产生了可衡量的影响。
The use of shallow geothermal energy increasingly receives attention as a suitable alternative to fossil fuel-based space heating and cooling, warm water provision, as well as for seasonal heat storage throughout Europe. With the advent of shallow geothermal energy use on large scales, a vivid discussion of potential ecological and economic impacts has arisen but actual field data are scarce. An intensive groundwater temperature-monitoring program over a period of 3years with consecutive measurements was, therefore, initiated at a residential neighborhood in the city of Cologne, Germany, under intense shallow geothermal use. The aim of the monitoring program was to overcome the existing data scarcity by pinpointing the effects of the intensive thermal use of the subsurface on groundwater temperatures and to foster understanding of urban groundwater temperature evolution. Results show that even though energy demands of the individual houses and energy extraction rates of the shallow geothermal systems were comparably small in this case, the accumulation of shallow geothermal users had a measurable impact on overall groundwater temperatures.