摘要
随着国内空调使用量的增加,建筑空调系统可持续发展成为实现国家“双碳”目标的重要环节。冷水机组作为中央空调系统中的核心设备,对建筑能耗和碳排放具有显著影响。着重研究了冷水机组实际性能系数(COPd)的现场检测技术,并以宁波地区为例,分析了冷水机组的性能系数(COP)测试实践。通过JGJ/T 177—2009《公共建筑节能检测标准》的计算方法,基于供冷量与输入功率的比值,结合超声波流量计、温度计和多功能电力仪表等测量工具,对冷水机组进行了现场COP的测定,并提出测试过程的一些注意事项。研究发现,宁波地区多数冷水机组的COPd较低,需要进行节能改造以提升能效。还提出了加强日常维护、科学管理、以旧换新策略以及政府支持等建议,以推动建筑节能改造工作,助力绿色、低碳、可持续发展。
With the increase in the use of air conditioning in China,the sustainable development of building air conditioning systems has become an important part of achieving the national‘dual carbon’goal.As the core equipment in the central air-conditioning system,chiller plant has a significant impact on building energy consumption and carbon emissions.The on-site testing technology of the actual coefficient of performance(COPd)of chiller units is focused on,and the testing practice of the coefficient of performance(COP)of chiller units is analysed in Ningbo area as an example.Through the calculation method of JGJ/T 177—2009‘Energy Efficiency Testing Standard for Public Buildings’,based on the ratio of cooling supply to input power,combined with measurement tools such as ultrasonic flow meter,thermometer and multi-functional power meter,the on-site COP of chiller units was determined,and some precautions for the testing process were proposed.It is found that the COPd of most chiller units in Ningbo is low,and energy-saving modifications are needed to improve energy efficiency.Suggestions are also made to strengthen routine maintenance,scientific management,trade-in strategy and government support in order to promote building energy efficiency retrofit and help green,low-carbon and sustainable development.
作者
潘松法
高家绪
胡莹坚
唐彪锋
PAN Songfa;GAO Jiaxu;HU Yingjian;TANG Biaofeng(Zhejiang Kaihe Design Co.,Ltd.,Hangzhou 310024,China;Ningbo Housing Architectural Design&Research Institute Co.,Ltd.,Ningbo 315040,China)
出处
《绿色建筑》
2025年第4期161-165,共5页
Green Building
关键词
冷水机组
性能系数
能源审计
现场检测
宁波地区
节能改造
chiller units
COP
energy audit
on-site inspection
Ningbo area
energy-saving renovations
