Regional-Scale Assessment of the Potential for Shallow Geothermal Energy Development Using Vertical Ground Source Heat Pumps

Peng Yu, Yufeng Xu, Honghua Liu, Xinyu Liu, Jiani Fu, Meijun Xu and Dankun Zhou ()
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Peng Yu: Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China
Yufeng Xu: China Highway Second Highway Survey, Design, and Research Institute Co., Ltd., Wuhan 430058, China
Honghua Liu: Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China
Xinyu Liu: Department of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
Jiani Fu: Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China
Meijun Xu: Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China
Dankun Zhou: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, China

Energies, 2024, vol. 17, issue 17, 1-17

Abstract: Shallow geothermal energy (SGE) is a widely prevalent geological resource underground, and its utilization offer significant energy conservation and emission reduction benefits, contributing to the achievement of carbon neutrality goals. Assessing the development potential of regional SGE can ensure sustainable development of these resources and prevent adverse effects induced by overexploitation. Jiangsu Province, a developed region in the eastern coastal area of China, has a strong demand for cooling and heating in urban buildings. The primary form of utilizing SGE in this area is through vertical ground source heat pumps (VGSHP). Based on the analysis of the impact of regional geological conditions on the development of SGE, this study specifically evaluated the suitability of developing SGE through VGSHP. After excluding areas unsuitable for development, the heat exchange capacity, heating or cooling area per unit area, and energy conservation and emission reduction benefits of VGSHP were calculated. The results indicate that the area suitable and moderately suitable for developing SGE through VGSHP in Jiangsu Province amounts to 76,453 km 2 . The total heat exchange capacity for summer is 1.21 × 10 9 kW, which can provide cooling for an area of 1.21 × 10 10 m 2 . The total heat exchange capacity for winter is 8.70 × 10 8 kW, which can provide heating for an area of 1.09 × 10 10 m 2 . The annual available resource amount is 2.68 × 10 12 kWh, equivalent to 3.30 × 10 8 tons of standard coal, and a CO 2 reduction of 7.86 × 10 8 tons.

Keywords: shallow geothermal energy (SGE); vertical ground source heat pumps (VGSHP); suitability zoning; benefits of energy conservation and emission reduction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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