变频空调器全年能源消耗效率APF提升研究

Study on the improvement of annual energy efficiency coefficient APF of variable frequency air conditioners

通过对变频空调器APF计算原理进行分析,以及各测试工况对APF影响权重分解,寻找提升APF的策略。通过理论分析,低温中间制冷对于APF影响权重较大,适当加长内机蒸发器流程长度,寻找内机风量拐点,有利于提升APF。

In this paper,the calculation principle of frequency conversion air conditioning APF is analyzed,and the influence of each test condition on the weight decomposition of APF is analyzed.Through theoretical analysis,the influence of low temperat ure intermediate refrigera-tion on APF is very important.Appropriately lengthening the flow length of inner machine evap-orator and searching for inflexion of inner machine air flow is helpful to improve the APF.