上海某土壤源热泵系统办公建筑日累计热负荷回归分析

Regression Analysis on Daily Heat Load of an Office Building with Ground-Coupled Heat Pump System in Shanghai

日累计负荷是分析土壤源热泵系统土壤侧温度日变化的重要依据。基于冬季工况实测数据分析了上海地区某土壤源热泵系统办公楼热负荷特性。使用SPSS软件,对实测日累计热负荷的可能影响因素进行相关性分析及回归分析,得到了该建筑日累计热负荷的主要影响因素为空调运行时间和室外平均干球温度,并得到线性回归方程,最后对该方程进行了验证。发现该回归方程模型在一定精度上可以较好地计算和预测上海办公建筑日累计热负荷,这可以为土壤源系统土壤温度日变化分析提供支撑。

Daily load is an important basis on the analysis of daily variation of ground temperature in ground source heat pump system. Based on the measured data, the heat load characteristic of an office building with ground-coupled heat pump system in Shanghai is analyzed. The correlation analysis and regression analysis on the influencing factors of daily heat load are performed with SPSS, with the conclusion that the operating time and the average outdoor dry bulb temperature are the main influencing factors, and the regression equation is found. The regression equation is verified. To some degree, the regression equation model could calculate and forecast the daily heat load of office building in Shanghai,which can help the study of daily variation of ground temperature in ground source heat pump system.