【摘要】 对铁路冷藏车R134a替代R12进行了相关的试验研究。通过模拟计算、试验数据整理、图形化处理,并对照理论计算的结果。试验表明,采集获得的数据与理论计算有很好的符合。R12多应用于冷冻冷藏设备,用R134a替代后,基本的热力参数都和R12系统接近,但设备的制冷性能会有小幅的下降,制冷量将减少15%左右。对于安全性要求高和易泄露的场合,R134a是R12的最佳替代物。更多还原

【Abstract】 This is a refrigerated rail vehicle R134a replace R12 tests analyzed.Through simulation,test data collated graphics processing,and control the results of theoretical calculations.That test data and theoretical calculations have a good meet.R12 more in refrigerated equipment,R134a replaced,the basic thermodynamic parameters and the system nearly R12,but the refrigeration equipment performance will decline slightly,refrigeration will be reduced by around 15%.Security requirements for high workability leaked occasions,R134a is the best substitute of R12.更多还原