地铁车站环控设备能效随运行年限演化特性研究
Evolution characteristics of energy efficiency parameters of environmental control equipment in underground railway stations with operation years
摘要：
基于分层抽样检测方法和对实测数据进行坏值剔除的格鲁布斯检验法，对上海地铁18个不同运行年限代表车站的环控设备与系统进行了研究。分析发现：冷水机组COP在运行初期、中期和远期分别为3.78、4.64和3.92，呈现中期较高、初期和远期较低的趋势；冷却塔平均热力性能参数和冷源系统能效比EER呈现中期较大、初期和远期较小的趋势；冷却塔的风机单位风量耗电比在初期和中期差别不大，但在远期相对初期增大65.4%，差异明显；冷却水泵和冷水泵效率在0.85上下波动，均与运行年限无明显相关性。
Abstract：
Based on the stratified sampling test method and the Grubbs test method of removing bad values from the measured data, studies the environmental control equipment and systems of 18 stations with different operation years in Shanghai Metro. The analysis indicates that the COP of the water chiller is 3.78, 4.64 and 3.92 respectively in the initial-term, middle-term and long-term operation of the station, showing a trend of higher in the middle-term and lower in the initial-term and long-term. The average thermal performance parameter of the cooling tower and the EER index of the cold source system show a trend of larger in the middle-term and smaller in the initial-term and long-term. However, the power consumption per unit air volume of the cooling tower has little difference between the initial-term and middle-term, but it increases by 65.4% in the long-term relative to the initial-term. The efficiency of the cooling water pump and the chilled water pump fluctuates around 0.85, which has no obvious correlation with the service life.
Keywords:waterchiller,coolingtower,waterpump,systemenergyefficiency,operationyear,evolutioncharacteristic