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Establishment of Evaluation Model for Shallow Geothermal Energy Resource Development Potential Based on Characteristic of Geotemperature

Hou, Jikun ; Luo, Xingqi ; Zhang, Lei

Earth sciences research journal, 2020-09, Vol.24 (3), p.317-325 [Periódico revisado por pares]

Bogata: Universidad Nacional de Colombia, Departamento de Geociencias

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  • Título:
    Establishment of Evaluation Model for Shallow Geothermal Energy Resource Development Potential Based on Characteristic of Geotemperature
  • Autor: Hou, Jikun ; Luo, Xingqi ; Zhang, Lei
  • Assuntos: Analysis ; Analytic hierarchy process ; Buried pipes ; China ; Development potential ; Energy resources ; Energy sources ; Evaluation ; GEOSCIENCES, MULTIDISCIPLINARY ; Geotemperature ; Geothermal energy ; Geothermal energy research ; Geothermal power ; Geothermal resources ; Groundwater ; Heat ; Heat exchange ; Heat exchangers ; Heat pumps ; Horizontal distribution ; Resource development ; Specific heat ; Surface water ; Surface-groundwater relations ; Temperature ; Water resources ; Zoning
  • É parte de: Earth sciences research journal, 2020-09, Vol.24 (3), p.317-325
  • Descrição: The potential analysis of geothermal energy based on geothermal characteristics requires research of the regional shallow geothermal energy. Then, an evaluation model can be constructed. Taking Weinan City as an example, this paper studied the depth and temperature characteristics of the constant zone of subsurface temperature, the vertical variation characteristic of geotemperature, and the horizontal distribution characteristic of geotemperature in Weinan City. Based on the analysis of geotemperature characteristic, the analytic hierarchy process was used to construct the zoning evaluation system of the suitability of ground source, groundwater source, and surface water source. Then, the suitability of Weinan city was comprehensively zoned by the zoning evaluation system. The heat capacity and heat-exchange power of the heat pump system at the groundwater source were calculated based on the zoning results, and the heat-exchange power of the ground-coupled heat pump was obtained. According to the evaluation index, the development potential of shallow geothermal energy resources was evaluated. Through the experimental analysis, applying the model in this paper, it can be seen that the heat pump system has great potential for heating in winter and cooling in summer. The area is 50.79 km2. The area of the potential middle region of the buried pipe heat pump is 135.74 km2, and the potential of the ground source heat pump system is low. The potential area of the ground source heat pump is 82.14 km2. Upon comparing the model results with the current results, it was found that the consistency between the two is high.
  • Editor: Bogata: Universidad Nacional de Colombia, Departamento de Geociencias
  • Idioma: Inglês;Português
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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