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对户用独立光伏能源驱动冰蓄冷空调的光-电-冷能量转化传递特性开展模拟分析和实验研究。研究结果表明,0.2 k W户用独立光伏能源驱动系统在昆明典型晴天条件下对外供冷功率的理论计算值为176.51 W,实测值为171.58 W,所建模型较好体现系统能量转化传递特性及部件能量损耗与损情况。系统能量利用率为7.45%,能量损耗较大的部件是光伏组件和制冰系统的蒸发器,分别占总能耗的86.72%和占蒸发器输入冷量的90%。系统效率为38.51%,光伏组件转化的电能值为547.91 W,占系统值的58.83%。光伏组件损最大,占总损的54.57%,制冰系统的压缩机占部件损和的51.97%,制冰系统蒸发器损占蒸发器输入的26.76%。
The simulation and experimental study on the light-electricity-cooling energy conversion and transfer characteristics of an independent photovoltaic energy-driven ice-storage air conditioner were carried out. The results show that the theoretically calculated value of external cooling power of the independent photovoltaic energy source driving system for household use of 0.2 kW in Kunming is 176.51 W and the measured value is 171.58 W under the typical sunny days of Kunming. The built model better reflects the energy conversion and transfer characteristics of the system and Component energy loss and damage conditions. The energy utilization rate of the system is 7.45%. The components with larger energy loss are the PV modules and evaporator of the ice making system, accounting for 86.72% of the total energy consumption and 90% of the input cooling capacity of the evaporator, respectively. The system efficiency is 38.51%. The converted PV power is 547.91 W, accounting for 58.83% of the system value. The PV module suffered the largest loss, accounting for 54.57% of the total loss. The compressor of the ice making system accounted for 51.97% of the component damage, while the ice system evaporator accounted for 26.76% of the evaporator input.