J4 ›› 2012, Vol. 42 ›› Issue (4): 1139-1144.

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Suitability Evaluation of the Shallow Geothermal Energy Development and Utilization in Changchun District City

Wang Nan1,2,Cao Jian-feng1,Zhao Ji-chang3,Li Shu-guang4   

  1. 1.College of Environment and Resources,Jilin University, Changchun130026, China;
    2. Institute of Water Resources and Environment, Changchun Institute of Technology,Changchun130021, China;
    3.Geology and Environment Survey Bureau of China,Beijing100081, China;
    4.College of Earth Sciences,Jilin University, Changchun130021, China
  • Received:2011-10-26 Online:2012-07-26 Published:2012-07-26

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Abstract:

The conditions of shallow geothermal energy is controlled by geological conditions, hydrogeological conditions and the thermal conductivity of rocks. According to geological and hydrogeological conditions, and analysis of rock thermal conductivity , Changchun urban area can be divided into three stratum structure areas and the No.1 is bedrock fissure water belt in the west of Jiajiawazi-Balipu-Xinglonggou,the No.2 is from bedrock fissure water belt in the east of Jiajiawazi-Balipu-Xinglonggou to terrace scarp zone of Yitong River and the No.3 is the Yitong River valley region. The measured thermal conductivity are 1.168,1.401 and 1.612 respectively. According to analysis of relevant factors, we establish the evaluation index system of ground-source heat pump and groundwater source heat pump suitable areas and put forward the optimum area, more appropriate area and unsuitable zone. We use the fuzzy comprehensive evaluation method to evaluate the three stratum structure areas. The results of evaluation is that the No.1 area is not suitable for groundwater source heat pump and the No.2,No.3 area are suitable.

Key words: Changchun City, shallow geothermal energy, suitability evaluation, evaluation system, fuzzy comprehensive judgement

CLC Number: 

  • P641.1
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