空调
能源消耗
环境科学
建筑围护结构
体积热力学
高效能源利用
寒冷的冬天
可变风量
定风量
气象学
环境工程
汽车工程
工程类
电气工程
机械工程
地理
物理
量子力学
热的
作者
Bin Ran,Shuting Qiu,Ying Zhang,Li Zeng,Jianming Zhu,Zhifeng Xiang,Jibo Long
标识
DOI:10.1080/17512549.2022.2160812
摘要
The energy consumption of different air conditioning systems varies greatly. In order to analyse the energy consumption status and energy-saving potential of air conditioning in existing office buildings, this paper takes an existing office building in hot summer and cold winter area as an example. The office and air conditioning energy consumption were continuously measured. The air conditioning energy consumption analysis model was established. With the measured data as input, the simulation calculation of the annual air conditioning energy consumption was carried out. The results showed that the measured value was quite different from the recommended value of the building energy efficiency standard. Changes in indoor air temperature or fresh air volume had a significant impact on air conditioning energy consumption. When the indoor set air conditioning temperature was 22°C in summer and 22°C in winter, the fresh air volume increased from 0 to 180 m3/(p·h), the increase of air conditioning power consumption reached 109.9% and 115.2%, respectively. The energy-saving envelope of the office building can obtain about 15% of the energy-saving benefits. However, users' adjustment of operating parameters such as fresh air volume and indoor design temperature can easily lead to energy loss greater than that of energy-saving envelope.
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