Regional-Scale Assessment of the Potential for Shallow Geothermal Energy Development Using Vertical Ground Source Heat Pumps
Author:
Yu Peng123ORCID, Xu Yufeng4, Liu Honghua1, Liu Xinyu5ORCID, Fu Jiani1, Xu Meijun1, Zhou Dankun6
Affiliation:
1. Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources, Qingdao Geo-Engineering Surveying Institute, Qingdao 266061, China 2. Key Laboratory of Coupling Process and Effect of Natural Resources Elements, Beijing 100055, China 3. Key Laboratory of Geological Disaster Risk Prevention and Control of Shandong Provincial Emergency Management Department (Under Preparation), Jinan 250014, China 4. China Highway Second Highway Survey, Design, and Research Institute Co., Ltd., Wuhan 430058, China 5. Department of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China 6. Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, China
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 km2. The total heat exchange capacity for summer is 1.21 × 109 kW, which can provide cooling for an area of 1.21 × 1010 m2. The total heat exchange capacity for winter is 8.70 × 108 kW, which can provide heating for an area of 1.09 × 1010 m2. The annual available resource amount is 2.68 × 1012 kWh, equivalent to 3.30 × 108 tons of standard coal, and a CO2 reduction of 7.86 × 108 tons.
Funder
Open Fund of the Key Laboratory of Geological Safety of Coastal Urban Underground Space, Ministry of Natural Resources Hubei Provincial Natural Science Foundation Open Foundation of the Key Laboratory of Coupling Process and Effect of Natural Resources Elements Open Foundation of Key Laboratory of Geological Disaster Risk Prevention and Control of Shandong Provincial Emergency Management Department
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