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基于“性能指标应等于季节总制冷量与总耗电量之比”的物理意义提出了季节部分负荷性能系数SPLV新指标。就SPLV和IPLV的公式形式、指标大小以及在典型性能曲线中的应用三个方面对二者的区别与联系进行分析,得出结论:SPLV与IPLV采用相同的构成要素,但二者的公式形式和量纲不同;对同一机组而言,IPLV≥SPLV,且各部分负荷工况点的性能系数COPc差别越大,其IPLV相对SPLV偏差也越大。
Based on the physical meaning of “the performance index should be equal to the ratio of seasonal total cooling capacity and total power consumption ”, a new index of seasonal partial load performance coefficient SPLV is proposed. Analyzed the difference and connection between SPLV and IPLV formula form, index size and application in typical performance curve, concluded that: SPLV and IPLV adopt the same components, but the formula form of the two And the dimension is different. For the same unit, IPLV≥SPLV, and the greater the difference of the coefficient of performance COPc between each part load condition point, the greater the deviation of IPLV relative to SPLV.