Evaluation of shallow geothermal energy resources in the Beijing-Tianjin-Hebei Plain based on land use |
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| Authors: | Yuan Ruo-xi Wang Gui-ling Liu Feng Zhang Wei Wang Wan-li Cao Sheng-wei |
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| Institution: | 1.Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China2.Technology Innovation Center for Geothermal & Hot Dry Rock Exploration and Development, Ministry of Natural Resources, Shijiazhuang 050061, China |
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| Abstract: | To discover the characteristics, distribution and potential of shallow geothermal energy in the Beijing-Tianjin-Hebei Plain area. This paper, based on a large amount of data collection and field investigations, evaluateed the shallow-layer geothermal energy in the study area through the analytic hierarchy process and comprehensive index method. Based on suitability zoning results superimposed with 1:100000 land use data, the study area is divided into encouraged, controlled, restricted and prospective mining areas regarding the development of shallow geothermal energy, and the economic availability of shallow geothermal energy in the encouraged and controlled areas are evaluated. The results show that the shallow geothermal energy in the Beijing-Tianjin-Hebei Plain can meet the heating and cooling demand of 6×108 m2 of buildings, equivalent to 1.15×107 t of standard coal, thus reducing carbon dioxide emissions by 2.73×107 t and reducing sulfur dioxide emissions by 1.95×105 t. According to the development and utilization mode, the energy demand level and the Beijing-Tianjin-Hebei coordinated development plan, the development and utilization of geothermal resources in the plain area has two types: Urban concentrated mining areas and rural scattered mining areas. The scale and level of intensive utilization of regional geothermal resources are of great significance. |
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| Keywords: | Beijing-tianjin-hebei plain Shallow geothermal energy resources Land use Suitability evaluation |
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