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.
出处
《建筑科学》
北大核心
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)
关键词
区域供冷
质调节
负荷率
节能
district cooling
quality regulation
load rate
energy efiqciency
