提高卷烟厂空调系统冷水供水温度的节能效果

Energy-saving potential of improving chilled water supply temperature of air conditioning system in cigarette factories

针对卷烟厂室内温湿度控制精度较高、湿负荷小、热湿比大的特点及传统空调系统采用恒定7℃冷水温度而导致的一些问题,利用DeST模拟分析了位于全国不同气候分区的5个城市的卷接包和制丝车间分别在23℃和25℃两个室内设定温度下全年对冷水温度的实际要求,通过实验研究验证了提高冷水供水温度的可行性,分析了提高冷水供水温度的节能性。结果表明,冷水需求温度为8～15℃;当夏季供10℃、过渡季和冬季供12℃的冷水时,夏季可实现冷水机组节能13%,过渡季和冬季可实现节能23%。

Cigarette factories have the characteristics of high requirement for temperature and humidity control, lower humidity load and larger heat humidity ratio. The chilled water supply temperature of conventional air conditioning system is kept constant at 7 ℃ in cigarette factories and leads to some problems. By the DeST software, simulates and analyses the annual required chilled water temperature in the cigarette-packing workshop and the primary processing workshop in five cities located at five different climatic zones at the different setting indoor temperature of 23 ℃ and 25 ℃. Experimentally verifies ;he feasibility of improving the chilled water supply temperature and analyses the energy efficiency. The results indicate that the required chilled water temperature is 8 ℃ to 15 ℃ ; when the supply temperature is 10 ℃ in summer and 12 ℃ in transition seasons and winter, the energy saving rate can be 13% in summer and 23% in transition seasons and winter.