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某住宅建筑空气源热泵采暖系统能耗优化分析

Optimization of Energy Consumption of Air-source Heat Pump Heating System in a Residential Building

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针对青岛某户式空气源热泵系统冬季供暖测试中存在的问题,如房间温度超标、无人时房间也开启供暖等,进一步对系统的运行控制进行了优化模拟.通过调整室内温度设定值及考虑房间使用时间等,分析了不同控制方式下的系统能耗情况.结合房间实际使用情况,建筑2层房间仅在周末时使用,对此进行了房间供暖末端的启停设置.在采暖设定温度与实测温度相同时,通过关闭2层不使用的房间供暖末端进行系统控制,单位建筑面积能耗和电耗分别下降21.1%和20.9%.当供暖季所有房间供暖末端开启时,室内温度均按照集中供热室内设计采暖温度18℃设定,单位面积能耗和电耗分别为81.7 kW·h/m2、22.1 kW·h/m2,较实际系统下降了 23.7%、21.4%;当房间2层供暖末端仅周末开启时,室内温度设定为18 ℃,单位建筑面积能耗和电耗分别降低为58.4 kW·h/m2、15.5 kW-h/m2.与实测能耗相比,通过运行优化控制,单位建筑面积供热量最大可降低45.4%,耗电量降低44.9%.相关分析结果为空气源热泵户式独立供暖系统的节能运行提供了参考.
In response to the problems in the winter heating test of a household air source heat pump system in Qingdao,such as the room temperature exceeds the standard,the heating system is turned on even when the room is unoccupied,the operation control of the system is further optimized and simulated.The energy consumption of the system under different control methods is analyzed by adjusting the room temperature setting value and considering the room usage time,etc.The rooms on the second floor of the building are used only on weekends,and the start/stop settings of the heating-end of the rooms are adjusted.When the set temperature is the same as the measured temperature,the system control by turning off the heating end of the rooms on the second floor that are not in use results in a 21.1%and 20.9%decrease in energy and electricity consumption per unit of floor area.When all rooms are turned on during the heating season and the indoor temperature is set according to the central heating interior design heating temperature of 18 ℃,the energy consumption and electricity consumption per unit area are 81.7 kW·h/m2 and 22.1 kW·h/m2,which are 23.7%and 21.4%lower than the actual system,respectively;when the room on the second floor end is turned on only on weekends and the indoor temperature is set to 18 ℃,the energy consumption and electricity consumption per unit floor area are reduced to 58.4 kW·h/m2 and 15.5 kW·h/m2 respectively.Compared with the actual measured energy consumption,the heat supply per unit floor area can be reduced by a maximum of 45.4%and electricity consumption by 44.9%through operation optimization control.The relevant analysis results provide a reference for the energy-saving operation of the air-source heat pump household independent heating system.

air source heat pumpindividual heatingenergy consumptionenergy savingoptimal control

张峰鸣、王海英、崔茁、庄绪成、张广岩、苏以通、魏刚、许哲文、胡松涛

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青岛理工大学环境与市政工程学院,山东 青岛 266520

青岛海信日立空调系统有限公司,山东 青岛 266071

青岛国际机场集团有限公司,山东 青岛 266000

空气源热泵 户式独立采暖 能源消耗 节能 优化控制

山东省自然科学基金资助项目

ZR2022ME035

2024

建筑节能(中英文)
中国建筑东北设计研究院有限公司

建筑节能(中英文)

CSTPCD
影响因子:0.695
ISSN:2096-9422
年,卷(期):2024.52(2)
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