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Potential of Deep Geothermal Energy at City Scale

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Deep geothermal energy is the heat resource generated and stored over 3km deep in the earth. For the utilization of deep geothermal energy, the direct heat use from Hot Sedimentary Aquifer (HSA) systems is the easiest gain because it can be achieved with existing technologies and avoids poor conversion efficiency when converted to electricity. A city-scale deep geothermal simulation tool is developed in the project. The tool can examine the potential of the deep geothermal energy at city scale, obtain the subsurface temperature distribution in a city, predict the life span of the geothermal system for a given abstraction rate and suggest a proper abstraction rate to ensure the sustainability of the deep geothermal system. Then the capability of the developed tool will be tested on Beijing, China.

This talk is part of the Engineering Department Geotechnical Research Seminars series.

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