交直流混动型多联机空调系统运行特性试验研究
Experimental study on operating characteristics of an AC/DC hybrid-driven VRF air conditioning system
摘要：
对一种新型交直流混动型多联机空调系统进行了试验研究,建立了该系统的性能测试平台,并对该系统在典型工况下的运行特性进行了分析。研究结果表明,系统单周产冷量、发电量、耗电量分别为1 865、126、474 kW·h,制冷性能系数和冷电综合性能系数的平均值分别为3.9和4.6。在晴天工况下,系统发电功率、制冷功率、输入功率分别比多云工况下高31.0%、57.4%、50.0%,分别是阴天工况下的4.2、3.2、4.6倍;系统制冷性能系数和冷电综合性能系数与多云工况下基本一致,但分别比阴天工况下低25.5%和22.2%。
Abstract：
This paper conducts an experimental study on a new AC/DC hybrid-driven VRF air conditioning system. A performance test platform for the system is established, and the operating characteristics of the system under typical working conditions are analysed. The research results show that the single-week cooling production, power generation, and power consumption of the system are 1 865 kWh, 126 kWh, and 474 kWh, respectively. The average values of the cooling coefficient of performance and the comprehensive coefficient of performance for cooling and power are 3.9 and 4.6, respectively. Under sunny working conditions, the system’s power generation power, cooling power, and input power are 31.0%, 57.4%, and 50.0% higher than those under cloudy working conditions, and are 4.2 times, 3.2 times, and 4.6 times those under overcast working conditions, respectively. The system’s cooling coefficient of performance and comprehensive coefficient of performance for cooling and power are basically consistent with those under cloudy working conditions, but are 25.5% and 22.2% lower than those under overcast working conditions, respectively.
Keywords:AC/DC hybrid-driven; VRF; air conditioning system; solar photovoltaic; operating characteristic; experimental study