部分负荷工况多联式空调系统性能的实验研究

摘要

针对变负荷工况及室外温度对多联机系统制冷量和冷量衰减的影响,搭建了多联式空调系统的实验台.研究室外机进风温度下,室内机开启的台数对变负荷工况下系统性能的影响.结果表明:随着负荷率的升高,冷量衰减值逐渐增大,开启的台数越多冷量衰减的越大；室外机进口温度的升高,造成冷量的衰减远大于部分负荷的衰减值.%A testing rig was set up to study the influence of different cooling load and outdoor air temperature on refrigerating capacity and cool attenuation in VRV air conditioning system. Influence of outdoor air temperature for the condenser, the number of indoor sets on performance of the unit was researched based on different cooling load. The result showed that the cool attenuation was gradually increasing as the cooling load increased; the cool attenuation was also increasing as the number of indoor sets was increasing; the range of variation of cool attenuation was much larger than partial load as outdoor air inlet temperature for the condenser was increasing.