德州市浅层地温能资源潜力评价

Assessment on Potential of Shallow Geothermal Resources in Dezhou City

摘要:

随着我国社会经济的快速发展，对能源的需求大幅增加，供需矛盾越来越突出，煤炭、石油、天然气等常规能源的大量消耗对环境造成的压力也越来越大。浅层地温能是一种可再生的新型环保能源，逐步受到各级政府及社会各界的重视。通过对德州城区浅层地温能赋存条件的分析，利用试验测试数据对浅层地温能热容量进行了计算，并在适宜性分区在基础上，进行了浅层地温能资源潜力评价。结果表明，德州城区120m深度内浅层地热容量为8.525×1013kJ/℃，相当于291万t标准煤。整个德州城区为地下水换热系统不适宜区，而适宜地埋管换热系统。在地埋管换热系统适宜区内，120m深度范围内考虑土地利用系数，计算得出夏季换热功率为339.18万kW，冬季换热功率为343.22万kW。夏季可制冷面积4.845×107m2，冬季可供暖面积6.240×107m2。

Abstract:

Accompanying with rapid development of social economy in China, the demand of energy increased greatly. The contraction between supply and demandof energy has become more and more prominent. The pressure caused by the consumption of coal, petroleum, natural gas and other conventional energy to the environment is becoming more and more great. As a renewable environment-friendly energy, shallow geothermal resource has been paid more attention gradually by governments at all levels. Through analysis on the storage conditions of shallow geothermal resources in Dezhou city, by using testing data, shallow geothermal capacity has been calculated. Based on the suitability partition, shallow geothermal energy resource potential evaluation has been carried out. As showed by the results, shallow geothermal capacity in the depth of 120m in Dezhou city is 8.525×1013kJ/℃, which is equivalent to 2.91 millions of tons of standard coals. The whole Dezhou city belongs to unsuitable area for groundwater heat exchanger system, but it is suitable for pipe heat exchanger system. Within the suitable area for pipe heat exchanger system, in consideration of land utilization factor in the depth of 120m, it is calculated that the heat exchanger power for summer is 3391800kw, heat exchanger power for winter is 3432200kw, the refrigerated area for summer is 4.845×107m2，and refrigerated area for winter is 6.240×107m2.