摘要
浅层地温能作为清洁、可再生的新型能源,其开发利用有助于优化区域能源结构、节约常规化石能源、减少二氧化碳排放。本文在充分收集贵安新区以往地质工作成果的基础上,结合区内浅层地温能赋存条件,基于运用层次分析法,对贵安新区直管区470 km^(2)的区域进行土壤源热泵系统适宜性评价。结果可知:研究区内地热增温率在平面上呈现由南东向北西的递增态势,地热增温率介于1.7~2.3℃/100m。主要地层平均初始温为17.74℃,综合热导率为2.26~4.52 W/m·℃,夏季每延米换热量为65.40~92.12 w/m,冬季每延米换热量为42.80~75.35 w/m;研究区土壤源热泵系统适宜区面积为246.47 km^(2),占总面积的52.0%;较适宜区面积为123.38 km^(2),占总面积的26.0%。土壤源热泵系统适宜区、较适宜区面积共有369.85km^(2),占研究区总面积的78%。针对土壤源热泵系统开发利用成本较高的实际,建议在后期开发利用中综合经济及社会效益进行合理开发。
As a new clean and renewable energy, the development and utilization of shallow geothermal energy will help optimize the regional energy structure, save conventional fossil energy and reduce carbon dioxide emissions.Based on the full collection of previous geological work achievements in Gui’an New Area, combined with the occurrence conditions of shallow geothermal energy in the area, and based on the application of the analytic hierarchy process, this paper evaluates the suitability of the ground source heat pump system in the 470 km^(2) area directly under the management of Gui′an New Area.The results show that the geothermal heating rate in the study area is increasing from southeast to northwest on the plane, and the geothermal heating rate is between 1.7~2.3℃/100 m.The average initial temperature of main strata is 17.74℃, the comprehensive thermal conductivity is 2.26~4.52 W/m·℃, the heat exchange per linear meter is 65.40~92.12 w/m in summer, and 42.80~75.35 w/m in winter. The suitable area of ground source heat pump system in the study area is 246.47 km^(2), accounting for 52.0% of the total area. The suitable area was 123.38 km^(2), accounting for 26.0% of the total area. The suitable area of ground source heat pump system is 369.85 km^(2), accounting for 78% of the total area. In view of the fact that the development and utilization cost of ground-source heat pump system is high, it is suggested that the reasonable development should be carried out in the late development and utilization with comprehensive economic and social benefits.
作者
姚哈达
YAO Ha-da(Guizhou Nonferrous Geological Engineering Survey Company,Guiyang 550002,Guizhou,China)
出处
《地下水》
2022年第6期37-39,共3页
Ground water
关键词
浅层地温能
土壤源热泵
层次分析法
适宜性
贵安新区
Shallow geothermal energy
Ground-source heat pump
Analytic hierarchy process
Suitability
Guian new area
