摘要
为降低新风系统的能耗,本文采用理论分析、实测及能耗模拟的研究方法,对新风系统运行策略进行研究.对比现有控制策略的差异与不足,提出一种新风系统控制策略的优化组合方案,根据电子焓判别线和切换温度的低线温度,将焓湿图划分成了Ⅲ个区域,高温高湿区采用电子焓控制法,当室外温度在送风温度附近时采用切换温度控制法.以北京地区为例分析其全年新风系统优化控制策略,利用Energy Plus软件,建立模型模拟系统在不同控制策略下的能耗大小,结果表明与最小新风量控制策略相比全年节能率为6.71%,单月最大节能率为16.32%.可见该新风系统控制策略的优化组合方案具有很大的节能潜力,具有一定的参考意义.
In order to reduce the energy consumption of outdoor air systems.The operation control strategy of the outdoor air system was studied through theoretical analysis and energy consumption simulation in this paper.By comparing the differences and shortcomings of existing control strategies,the optimal combination scheme of outdoor air system control strategy was proposed.According to the electron enthalpy identification line and the low-temperature line of switching temperature,the enthalpy humidity chart was divided into three regions with different operation control strategies.The electron enthalpy was used for the high-temperature and high-humidity region and switching temperature for outdoor temperature reaching about the same level with air supply temperature.Energy Plus was used to simulate the energy consumption of the outdoor air system under different operation control strategies.Taking Beijing as an example,the annual outdoor air system optimization control strategy was analyzed.The results show that compared with the minimum outdoor air volume control strategy,the annual energy saving rate reaches 6.71% and the maximum energy saving rate in a single month stands at 16.32%.It is concluded that the operation strategy of the outdoor air system has great energy-saving potential.
作者
牛润萍
范莹莹
孟富强
庚立志
NIU Runping;FAN Yingying;MENG Fuqiang;GENG Lizhi(School of Environment and Energy Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)
出处
《建筑科学》
CSCD
北大核心
2021年第6期36-41,共6页
Building Science
基金
“十三五”国家重点研发计划项目“基于实际运行效果的绿色建筑性能后评估方法研究及应用”(2016YFC0700100)资助。
关键词
新风系统
电子焓控制法
切换温度控制法
运行策略
焓湿图
outdoor air system
electron enthalpy control method
switching temperature control method
operation strategy
enthalpy humidity chart
