基于层次分析法的沈阳市地埋管地源热泵适宜性评价

利用层次分析(AHP)法,以Map GIS为平台,考虑了地质条件、地下水动力条件及地层热物性参数等因素,对沈阳市辖9区范围内地埋管地源热泵适宜性进行了评价.建立了评价指标体系,主要对第四系厚度、卵石层厚度、地下水埋深、地下水径流条件、地层热传导系数、比热容等6项指标进行权重计算及综合评分,根据评分将全区划分为适宜区、较适宜区和不适宜区.该评价结果为沈阳市浅层地温开发利用提供技术支持.

AHP-BASED SUITABILITY ZONATION AND ASSESSMENT FOR THE GROUND-SOURCE HEAT PUMP SYSTEM IN SHENYANG CITY

Based on MapGIS platform, in consideration of the geological conditions, groundwater dynamic conditions and thermal physical parameters of strata, the suitability of ground-source heat pump system in Shenyang municipal district is evaluated by the analytic hierarchy process (AHP). The assessment index system is established, involving pebble layer thickness, depth of groundwater table, groundwater runoff conditions, thermal conductivity of strata and specific heat capacity. The weights and scores of each index are then calculated. According to the score, the municipal district is divided into the three areas, i.e., the most suitable area, suitable area and unsuitable area. The result is expected to provide technical support for the shallow geothermal development and utilization in the region.