摘要
在“双碳”目标背景下,建筑能效提升工作备受关注。基于上海某体育场馆建筑空调系统实际运行监测数据,对空调系统运行进行分析、评价、诊断及优化。结果表明,空调系统运行中风冷热泵机组能耗占90%,水泵占10%。风冷热泵机组平均COP为3.01,水泵输送系数平均值为23.9。热泵机组进出水平均温差为3.2℃,系统平均温差仅为1.5℃,远低于设计温差。系统的循环水量远大于实际需求,通过水泵优化控制可实现水泵能耗降低64%。风冷热泵机组负荷分配与台数优化控制可使能耗降低6.7%,水冷变频离心机组负荷分配优化与台数优化控制可使能耗降低8.9%。相比风冷热泵机组,优先运行水冷变频离心机组可减少空调系统能耗36.9%。
Under the background of the “Dual-Carbon Goals”(realizing carbon peak before 2030 and carbon neutrality before 2060) in China,the improvement of building energy efficiency has reached an unprecedented height.Based on the actual operation monitoring data of the air-conditioning system of a stadium in Shanghai,the operation of the air-conditioning system is analyzed,evaluated and diagnosed,and the operation of the air-conditioning system is optimized.The results show that the energy consumption of the air-cooled heat pump unit accounts for 90% and the water pump accounts for 10% during the operation of the air conditioning system.The average COP of the air-cooled heat pump unit was 3.01,and the average transfer coefficient of the pump is 23.9.The average temperature difference between the inlet and outlet water of the heat pump unit is 3.2 ℃,and the average temperature difference of the system is only 1.5 ℃,which is much lower than the design temperature difference.The circulating water volume of the system is much greater than the actual demand,and the energy consumption of the pump can be reduced by 64% through the optimal control of the pump.The load distribution and number control optimization of the air-cooled heat pump unit can reduce the energy consumption by 6.7%,and the load distribution optimization and the optimal control of the number of units of the inverter centrifugal unit can reduce the energy consumption by 8.9%.Compared with the air-cooled heat pump unit,the priority operation of the water-cooled variable frequency centrifugal chiller can reduce the energy consumption of the air conditioning system by 36.9%.
作者
刘兆辉
唐林峰
LIU Zhaohui;TANG Linfeng(Shanghai Construction Group Co.,Ltd.,Shanghai 200080,China;Shanghai Shang’an Property Management Co.,Ltd,Shanghai 200083,China)
出处
《建筑节能（中英文）》
CAS
2024年第6期128-135,共8页
Building Energy Efficiency
基金
上海市青年科技启明星计划资助项目(21QB1402900)。
关键词
空调系统
冷热源
评价
运行优化
节能
air conditioning system
heat and cold source
evaluation
operation optimization
energy saving
