广州大学城区域供冷系统质调节的节能分析  

Energy Efficiency Analysis on Quality Regulation of District Cooling System in Guangzhou University Town

作　　者：闫军威[1] 刘飞龙[2] 朱冬生[2] 周璇[2] 李静[1] 

机构地区：[1]华南理工大学工业装备与控制工程学院 [2]华南理工大学传热强化与过程节能教育部重点实验室,广州510641

出　　处：《建筑科学》2007年第12期27-29,34,共4页Building Science

基　　金：科技部科技型中小企业创新基金(06C26214400435)

摘　　要：根据空调系统冷负荷随室外温度不同而变化的特点,本文提出采用质调节供给空调系统所需的冷量。针对广州大学城的气象条件和冷负荷特点,给出了室外不同温度下冷冻水的供回水温度曲线,分析了质调节对二级冷量交换站和风机盘管的影响。该调节方式在华南理工大学试用后,一次侧冷冻水供回水温差提高到12℃以上,冷冻水流量负荷率在50%附近变化,实现了"小流量、大温差"供冷。In this paper, according to the theory that cooling load of air-conditioning system would change with the variation of outdoor temperature, the strategy of quality regulation that could provide required cooling capacity was introduced. Based on the weather condition and the actual cooling load characteristics in Guangzhou university town, the temperature curves of supply and return chilled water under different outdoor temperatures were given out, also the effects of quality regulation on second grade cooling capacity exchange station and fan coils were discussed. After this strategy was used in South China University of Technology, the temperature difference of supply and return chilled water increased to 12 ℃, and the load rate of chilled water flow decreased to 50%, therefore, the district cooling system with large temperature difference and small flow rate was achieved.

关 键 词：区域供冷 质调节 负荷率 节能 

分 类 号：TU831.3[建筑科学—供热、供燃气、通风及空调工程]