Geothermal energy at different depths for district heating and cooling of existing and future building stock
Geothermal energy at different depths for district heating and cooling of existing and future building stock
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DOI：
10.1016/j.rser.2022.112727
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发表时间：
2022-10-01
影响因子：
15.9
通讯作者：
Leiss, B.
中科院分区：
文献类型：
--
作者：
Romanov, D.;Leiss, B.
本文报告了建筑部门、区域供热和供冷（DHC）领域以及地热技术的最新发展，这些发展表明了更可持续和气候友好型供热和供冷系统的趋势和努力，并可为政策制定者和决策者提供指导。确定了区域供热网络中温度较低和建筑物围护结构要求较高的趋势。与此同时，地热部门开发了技术，以达到更深的地下层，并以更高的温度提取热量。为了跟踪建筑部门和地热供能的进展，这里考虑了多方面的地热系统，其中包括深层、中深层和浅层地热资源的组成部分。由于不同的温度发生在不同的深度，这样的系统可以用于不同代的DHC和建筑物。这一概念可能是能源中心的一部分，并有助于促进从基于化石燃料的DHC向基于地热的DHC的转变。提出了多面地热系统的概念，对其进行了SWOT分析，并确定了进一步的研究方向。
Recent developments in the building sector, district heating and cooling (DHC) field, and geothermal technology are reported here, which indicate the trends and efforts to more sustainable and climate-friendly heating and cooling supply systems and may provide guidance for policymakers and decision-makers. The tendency towards lower temperatures in district heating networks and higher building envelope requirements are identified. Meanwhile, technologies have been developed in the geothermal sector to reach deeper subsurface layers and to extract heat with higher temperature. To follow the progress in the building sector and DHC, multi-faceted geothermal systems are considered here, which include components of deep, medium-deep and shallow geothermal resources. Because different temperatures occur at different depths, such a system can be used for different generations of DHC and buildings. This concept may be a part of an energy hub, and can help facilitate transformation from fossil fuel-based DHC to geothermal-based DHC. The concept of multi-faceted geothermal system is presented, its SWOT analysis is performed and further research directions are identified.