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Geothermal Energy Cover Image
Fig. 3 | Geothermal Energy

Fig. 3

From: An assessment of technical and economic feasibility to install geothermal well systems across Ukraine

Fig. 3

Pumped water temperature versus time: a for \(H\) = 2 km and flow rates \(Q\) = 500 m3/day (red), \(Q\) = 1000 m3/day (green), \(Q\) = 1500 m3/day (blue); b for \(Q\) = 1000 m3/day and depths \(H\) = 2 km (red), \(H\) = 1.5 km (green), \(H\) = 1 km (blue). The other parameters are \(q\) = 60 mW/m2, \(T_{\text{out}}\) = 15 °C

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