【摘要】 对采用R410A和直流变频涡旋压缩机的房间空调器的节能特点进行分析。采用分布参数法建立该种空调器的稳态数学模型,运用该模型计算制冷量、功率和能效比随运行频率变化的趋势,并在中南大学空调器性能试验台上测试该空调器的性能。研究结果表明:制冷量、功率和能效比的平均相对误差分别为2.9%,6.2%和3.9%,模型基本可靠;变频空调器在20Hz运行时能效比高达4.3,而在100Hz运行时能效比低于2.5,因此,在选用变频空调器时,应选择制冷量较大的空调器,避免超频运行。更多还原

【Abstract】 The energy-saving characteristic of R410A air conditioner with DC-inverter scroll compressor was analyzed.A parameter-distributing steady mathematic model was established for this air conditioner.With this model,the trend changing with operating frequency of refrigeration capacity,power input and energy efficiency ratio(EER) was calculated.This air conditioner was tested on the air conditioner performance-testing bench in Central South University.The results show that the relative errors of capacity,power and EER are 2.9%,6.2%,3.9% respectively,which verifies that the model established is reliable.For a domestic air conditioner with DC-inverter,EER can reach 4.3 when operating at 20 Hz,but lower than 2.5 when operating at 100 Hz,so it is advised to choose one with higher refrigeration capacity air conditioner with DC-inverter.更多还原