评价小型空调器性能的状态标志函数

分析了现有空调器性能评价指标的不足，提出了评价空调器性能的状态标志函数ＳＣＦ。ＳＣＦ与空调器的过热度、过冷度、蒸发温度、冷凝温度、压缩机温度有关，它既能够说明空调器无效耗能的多少和空调器能效比高低的原因，又可以用于状态的优化控制和故障诊断，作为微观评价指标，它与现有评价指标能效比结合，将使空调器的性能评价体系更为合理。

State characteristic function for performance evaluation of small air conditioners

Points out the deficiencies in the current evaluation system of air conditioner performance, presents the state characteristic function(SCF)as an evaluation index, which varies with degrees of superheat and supercooling, evaporation temperature, condensation temperature and compressor temperature and reflects magnitude of ineffective energy used and the possible reason for lower EER of air conditioners, and helps realize optimal control and fault diagnosis. Considers that it can make more reasonable evaluation index when combined in use with EER.