Suitability Evaluation Of Groundwater Source Type Shallow Geothermal Energy Development In Qingdao

With the development of society and economy in Qingdao,the reasonable development and utilization of green energy is becoming more and more important.Shallow geothermal energy is an important part of the earth’s heat energy,temperature stable and widely distributed,is a new type of clean renewable energy,has a very wide range of applications.Based on the investigation of shallow geothermal energy resources in Qingdao,this paper evaluated the suitability of the development of shallow geothermal energy.Suitability evaluation is an important part of the development and utilization of shallow geothermal energy,its main task is to comprehensively analyze the various factors affecting the geology,and to develop the suitable area for the study area.According to the analysis of field survey data and research to determine the development of shallow geothermal energy for weights of evaluation index system and evaluation factors (water content,pH,salinity,total hardness) and the analytic hierarchy process,expert clustering method and fuzzy mathematics method to calculate the suitability evaluation and zoning combination the method.Qingdao city hydrological data collection and field survey data,from the geographic information system software Gmap,superposition calculation,in accordance with the appropriate zoning standards,using Surfer software to draw the contour and evaluate the results of partition,into geographic information processing software Map GIS to make maps can visually express all kinds of suitable area.The survey and evaluation of the following results:(1)to carry out the investigation of groundwater resources in Qingdao City,the work of sampling,collected the data of groundwater quality in Qingdao City,etc..(2)on the basis of field collection and experimental results obtained by analyzing data of drawing effect of underground water in Qingdao city type of shallow geothermal energy exploitation suitability evaluation factors (water content,salinity,pH,total hardness) zoning map.(3)for the first time,the suitability evaluation of the development of shallow geothermal energy in Qingdao city is carried out in detail.The development and utilization of shallow geothermal energy in Qingdao city is determined by the suitability Zoning: the development condition of shallow geothermal energy in Qingdao city is good,shallow geothermal energy development and utilization prospect is considerable.Suitable areas are mainly located in Pingdu City,South and west area,Chengyang District,southwest region,Huangdao Southern District in Haikou River region;suitable for large area distribution in Qingdao region,remove Pingdu southern and Western suitable area,Jiaozhou Bay area and Laoshan area;suitable area in concentrated in Laoshan District,Qingdao high tech Zone,Jiaozhou Dagu River into the Haikou area,the original Huangdao district;more suitable area distribution range is small,scattered in the north and northeast of Jimo City,the eastern and Western Chengyang at the junction of Jiaozhou City,north of Laixi City,Pingdu City east.The water of Qingdao shallow geothermal energy development suitability evaluation to provide data support and scientific basis for important development and utilization of groundwater resources in Qingdao area,Qingdao city to accelerate the development of green energy to the publicity and guidance,to reduce and avoid all kinds of environmental pollution problems,play a positive role in promoting the construction and will create tourism city with the health city in Qingdao city in.