空调负荷率对地埋管水冷多联机空调系统性能的影响

埋管式水冷多联机空调系统具有很好的节能、环保效益,是一种新型水冷多联机系统,但由于其系统运行特性相关资料缺乏,严重影响其在实际工程中的应用。为了解埋管式水冷多联机系统运行特性,以某建筑埋管式水冷多联机系统为研究对象,采用试验方法对其性能进行测试,测试结果表明:系统负荷率越大,水冷多联机组进出水温度越高;机组耗电量和制冷量随系统负荷率增大而增大,系统负荷率对机组性能系数的影响较小;该系统与常规风冷多联空调系统相比,其在部分负荷运行时调节性能好、运行费用低、节能性好。

Impact of Air Conditioning Load on the Performance of Buried-tube Water-cooled Variable Multi System

As an air conditioning system,the Buried-tube Water-cooled Variable Multi System is of energy saving and environmental protection. Due to the lack of relevant information for system operational characteristics,its application is restricted in practical engineering. In order to understand theperformances of Buried-tube Water-cooled Variable Multi System,the performances are tested with reference to a construction site. The relationship between the system load rate and system performance is analyzed. The results show that the water temperature rises at the import and export as the system load increases. The system power consumption and refrigerating capacity grow with system load rate,but the impact of system load rate is small on system performance coefficient. Compared with conventional air conditioning systems,the Buried-tube Water-cooled Variable Multi System is low in operation cost and good in energy saving.