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| 冷热负荷失衡条件下采能区地温场的模拟研究 | |
| 引用本文： | 刘立才,张远东,李世君,王金生.冷热负荷失衡条件下采能区地温场的模拟研究[J].太阳能学报,2008,29(9). |
| 作者姓名： | 刘立才 张远东 李世君 王金生 |
| 作者单位： | 1. 北京师范大学水科学研究院.北京,100875;北京市水利科学研究所,北京,100044 2. 清华大学水沙科学与水利水电工程国家重点实验室,北京,100084 3. 中国地质大学水资源与环境学院,北京,100083 4. 北京师范大学水科学研究院.北京,100875 |
| 摘 要： | 以北京某地下水源热泵空调系统为例,利用地下水、热耦合数值模型技术,对冷、热负荷严重不平衡条件下地下水抽灌场地温度场的年内和年际变化进行了定量模拟预测研究,并对系统长期运行的可行性进行了论证.研究结果表明:抽水井和回灌井之间的距离相对较大,抽灌井之间的"热突破"程度较低;由于空凋系统的供暖负荷显著大于制冷负荷,抽灌区温度场将呈逐年下降趋势;抽灌场地是一个开放的系统,不断与外界发生能量交换.随着热泵空调系统的长期运行,抽灌区的温度下降速率越来越小,地温场渐趋稳定;由于热泵系统的年内冷、热负荷存在严重失衡,进而对热泵系统的运行效率将产生一定影响. |
| 关 键 词： | 地下水源热泵 地温场 热传递 数值模型 热突破 |
SIMULATION OF GEO-TEMPERATURE FIELD CHANGES DUE TO ENERGY ABSTRACTION UNDER UNBALANCED COOLING AND HEATING LOAD CONDITION |
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| Liu Licai,Zhang Yuandong,Li Shijun,Wang Jinsheng.SIMULATION OF GEO-TEMPERATURE FIELD CHANGES DUE TO ENERGY ABSTRACTION UNDER UNBALANCED COOLING AND HEATING LOAD CONDITION[J].Acta Energiae Solaris Sinica,2008,29(9). | |
| Authors: | Liu Licai Zhang Yuandong Li Shijun Wang Jinsheng |
| Affiliation: | Liu Licai~(1,2),Zhang Yu,ong~3,Li Shijun~4,Wang Jinsheng~1 (1.Water Science College of Beijing Normal University,Beijing 100875,China,2.Beijing Hydraulic Research Institute,Beijing 100044,3.State Key Laboratory of Hydroscience , Engineering,Beijing 100084,4.Shool of Water Resources , Environment of China University of Geosciences,Beijing 100083,China) |
| Abstract: | A case study was conducted using the data from an operating system in Beijing.A 3D numerical model was developed to predict the underground temperature field changes for a period of ten years.The results indicated that the time for thermal breakthrough of the pumping wells is relatively long because of relatively long distances between production and injection wells.Due to the fact that the heating load is heavier than the cooling load,the underground temperature falls year by year.Because the groundwater a... |
| Keywords: | groundwater source heat pump geo-temperature field heat transfer numerical model thermal breakthrough |
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