摘要
文章建立了地下水池蓄水水源热泵系统地下换热物理、数学模型和池水的基本热平衡方程,采用有限差分法求解,应用VB编程迭代运算,模拟分析蓄水池水温随系统运行时间、地面负荷、导热系数及有效传热面积的变化情况。研究结果表明,根据夏季空调制冷极限与池水温升变化规律,对于一定的地面负荷,增大池水与土壤间的有效导热面积可有效减缓池水到达温升极限;此外,通过填充导热系数大的物质可以增大池水与土壤间的导热系数。
In this paper,the physical and the mathematical heat transfer models of reservoir water source heat pump system with underground pool water are established,and the basic thermal equilibrium equation of the pool water is given.Solved by finite difference method,and using VB programming and iterative computation,the changes of reservoir water temperature subject to operation time of system,ground load,thermal conductivity and effective heat transfer area are simulated and analyzed.The results show that according to the refrigeration limit of air conditioning in summer and change rules of temperature rise of the pool water,for certain ground load,increasing effective heat conduction area between the pool water and soil can effectively slow down the pool water＇s arriving at the temperature rise limit.And thermal conductivity between the pool water and soil increases through packing materials with large thermal conductivity.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第11期1656-1659,共4页
Journal of Hefei University of Technology：Natural Science
基金
国家十一五科技支撑计划资助项目(2006BAJ04B04
2008BAJ08B12-02)
国家科技支撑计划资助项目(2008BAJ12B03)
关键词
地下池水热泵
夏季运行特性
传热模型
数值模拟分析
underground pool water heat pump
operating characteristic in summer
heat transfer model
numerical simulation and analysis
