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本文对上海某小型办公建筑空气源热泵空调系统制冷及制热工况全年性能进行了实验研究,研究结果表明,空气源热泵空调系统在夏热冬冷地区能够满足建筑的制冷及制热需求,为建筑提供全年均匀稳定的热环境。同时,该空气源热泵空调系统可以根据建筑的冷/热负荷调节其制冷量以及制热量;在制冷工况下,室外温度越高其制冷量越大;在制热工况下,室外温度越低其制热量越大。此外,本文还提出了一种以循环效率-机组负载率曲线来表征系统运行性能的方法,该方法可以方便直观地表现热泵机组在变工况、变负荷情形下的性能变化特性。
In this paper, the performance of the air-source heat pump air-conditioning system in a small office building in Shanghai was experimentally studied. The results show that the air-source heat pump air-conditioning system can meet the needs of building cooling and heating in hot summer and cold winter area , To provide the building a uniform and stable thermal environment throughout the year. At the same time, the air source heat pump air conditioning system can adjust the cooling capacity and heating capacity according to the cooling / heating load of the building. In the cooling condition, the outdoor temperature is higher, and the cooling capacity is larger. In the heating condition, the outdoor temperature The lower the heating system, the greater. In addition, this paper also presents a method to characterize the system performance by the cycle efficiency-unit load rate curve, which can easily and intuitively show the performance characteristics of the heat pump under variable load and variable load conditions.