流体机械Issue(5)：74-77,42,5.DOI:10.3969/j.issn.1005-0329.2014.05.018
替代工质R32和R290的对比研究
Comparative Tests of Alternative Refrigerants R32 and R290
张振亚 1王芳 1肖庭庭 1刘振东 1王宏杰1
作者信息
摘要
Abstract
AccordingtothepredeterminedconditionsfromGB/T7725-2004,performancesofR32andR290whenusedinair conditioning systems were tested.Based on theoretical analysis and experimental data,the performances and system improved methods of these two alternative refrigerants were summarized.The results showed that:cooling capacity per unit volume of R32 was higher about 87%than R290,so,for getting the same cooling capacity,R290system can use a compressor having bigger dis-placement.But the R32 system has a higherdischarge temperature,and pressure ratio is also higher about 7% than R290.Com-pared to R290 system,energy efficiency of R32 systemfell by about 3.7%.Heat exchanger pressure drop ofR290 system is less than R32,which helps to improve system efficiency.But safety performance of R290 is less than R32,which lead to a higher cost in the system safety design anda relatively high initial investment in the transformation.关键词
R32/R290/试验研究/性能对比/应用分析Key words
R32/R290/performancecomparison/experimentalstudy/applicationanalysis分类
机械制造引用本文复制引用
张振亚,王芳,肖庭庭,刘振东,王宏杰..替代工质R32和R290的对比研究[J].流体机械,2014,(5):74-77,42,5.
