论文部分内容阅读
通过工程实例,建立相应的物理及数学模型,划分出相应的网格。根据能量守恒定律,从土壤侧考虑,把流入土壤的热量进行均分得到恒定热流,以得到的恒定热流作为边界条件。模拟计算得出在不同工况下20年后土壤温度场温度分布,并且计算得出土壤侧的换热效率,通过不同监测点的温度分布状况,以及平均温度、最高温度变化情况,分析热堆积的基本特点。通过分析使用冷却塔后的土壤分布状况、土壤最高温度处效率改变,从而为以后探讨不同运行模式埋地换热器效率奠定基础,并且为采用不同方法平衡热堆积提供了思路。
Through the engineering examples, the corresponding physical and mathematical models are established and the corresponding grids are divided. According to the law of conservation of energy, considering the soil side, the heat flow into the soil is equally divided to obtain a constant heat flow, and the obtained constant heat flow is used as the boundary condition. The temperature distribution of soil temperature field under different conditions for 20 years was obtained by simulation and the heat exchange efficiency of soil side was calculated. Through the distribution of temperature at different monitoring points and the change of average temperature and maximum temperature, The basic characteristics. By analyzing the distribution of soil after using cooling tower, the efficiency of soil maximum temperature changes, which will lay the foundation for further discussion of the efficiency of buried heat exchangers in different operation modes and provide ideas for balancing the heat accumulation by different methods.