Technological solutions have been proposed for extraction of heat accumulated in hot dry rock with various energy potentials. To extract the heat of low-temperature dry rock mass is shown to be advisable to ensure low heat carrier flow rates in the DHE; so for the depths H = 100, 200 m, the water flow rate G = 0.5–0.6 kg/s is optimal. The technology is presented for a hybrid solar–geothermal system consisting of solar collectors and a DHE coupled with a heat pump. The practical application of this system is shown to be highly efficient. The technological outline of heat and hot water supply with heat extraction from low-enthalpy dry rock in the DHE has been developed. A low-boiling working media is proposed as a working body. Evaluation was carried out of the efficiency of heat extraction from dry rock mass by deep down-hole heat exchangers of different length. The calculations confirmed the possibility of output up to 1 MW of thermal power and more. The technology of enhanced geothermal system with rock hydraulic stimulation and horizontal wells has been developed, and estimations have been carried out on heat removal from rock mass in such a system.

中文翻译：

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不同能量潜力的干岩石产热技术设计与效率评估

已经提出了用于提取具有各种能量潜能的干热岩石中积聚的热量的技术解决方案。为了确保DHE中的载热体流速低，建议提取低温干岩体的热量是可取的。因此，对于深度H = 100、200 m，水流量G = 0.5–0.6 kg / s是最佳的。这项技术是针对太阳能-地热混合系统提出的，该系统由太阳能收集器和DHE以及热泵组成。该系统的实际应用显示出很高的效率。通过在DHE中从低焓干岩石中提取热量来提供供热和热水的技术大纲已经开发出来。提出了一种低沸点工作介质作为工作体。通过不同长度的深井下换热器对干燥岩体的热量提取效率进行了评估。计算结果证实了输出高达1 MW甚至更高的火力的可能性。已经开发了具有岩石水力刺激和水平井的增强地热系统的技术，并且已经对该系统中岩体的热量去除进行了估计。