化工进展2017，Vol.36Issue(3)：832-838,7.DOI:10.16085/j.issn.1000-6613.2017.03.009
变频滚动转子式压缩机变吸气状态实验研究与模型建立
The experiment and modeling for variable frequency rotary compressor with different suction status
摘要
Abstract
Although wet compression could decrease the compressor discharge temperature,it has effects on performance of compressor,which should be focused. The volumetric efficiency of R32 variable frequency rotary compressor with same frequency and different pressure ratios,then with same pressure ratio and different frequencies,varying with different compressor suction status is analyzed in this paper. According the conclusion and experimental data,the semi-empirical model was presented. Results showed that when the refrigerant status of compressor suction was superheated,the superheated temperature has less effect on the volumetric efficiency. When the status was at two phase,the volumetric efficiency decreased linearly with the suction vapor quality. The slopes at each frequency and pressure ratio were the same. The tendencies of the coefficient of performance varying with compressor suction state under experimental conditions were the same as that of the volumetric efficiency. In addition,by comparing theoretical value through the model with the experimental data,the maximum relative error is 1.51%,and the minimum is 0.03%,which demonstrates the precision of the model. The noteworthy phenomenon is that the performance of compressor is worsen when operating at lower frequency and suction vapor quality,which means the model is suitable for the operating condition with the frequency higher than the rated frequency and the suction vapor quality greater than 0.90.关键词
热力学/变频压缩机/模型/两相Key words
thermodynamics/variable frequency compressor/model/two phase分类
能源科技引用本文复制引用
虞中旸,陶乐仁,王超,沈冰洁..变频滚动转子式压缩机变吸气状态实验研究与模型建立[J].化工进展,2017,36(3):832-838,7.基金项目
上海市动力工程多相流动与传热重点实验室项目(13DZ2260900). （13DZ2260900）
