区域供冷输配一级泵系统能耗量化分析
Quantitative analysis on energy consumption of primary water pumpingdistribution system for district cooling
摘要：
基于管网动力学数学模型,以某城市综合体区域供冷项目为例,定量分析了区域供冷输配一级泵系统在输送管网始端定压差和末端定压差2种不同控制方案下的全年逐时运行能耗。结果表明,相比始端定压差方案,末端定压差方案的年运行耗电量低29.7%。该工程末端定压差方案具有负荷调节精度高、运行能耗低的优点,建议采用。
Abstract：
Based on the dynamic mathematical model of pipe network, taking a district cooling project of a building complex as an example, a quantitative analysis on the annual hourly operating energy consumption of the primary water pumping distribution system for the district cooling is carried out under two different control schemes of the constant pressure difference at the beginning and at the end. The results show that, compared with the constant pressure difference at the beginning, the annual operating power consumption of the constant pressure difference at the end is lower by 29.7%. For the project, the constant pressure difference at the end has the advantages of high load regulation accuracy and low operating energy consumption, so it is recommended.
Keywords:district cooling; primary water pumping distribution system; constant pressure difference control; energy consumption of transmission and distribution system; complex building