开式逆升压空气制冷机在列车空调上的应用分析

Analysis on the Application of Open Negative Pressure-boosting Air Cycle Refrigerator for the Train Air Condition

研究了列车空调用空气制冷机的方案。通过热力学计算,得出了该方案在列车空调设计工况下的性能。分析了相关参数对循环性能的影响,指出了提高空气制冷机效率的途径。本文结果对制冷剂替代工作和列车空调用制冷机的研制具有重要意义。

The system of air cycle refrigerator used for train air-condition is presented. The performance of the system under the design state of the train air-condition is obtained through thermodynamic calculation. The effects of the major factors on the performance were analyzed, and some approaches to improve the performance have also been presented. The results are significant for the replace of the CFC and investigation of the air-cycle refrigeration used in train air-condition.