| 摘要: |
| 蒸发器出口过热度是制冷系统运行状态的一种特殊表征，为了研究在汽车空调中，蒸发器出口过热度对于蒸发器能力和系统影响的大小，本文在标准汽车空调实验台下实验，通过一种新型电子膨胀阀对蒸发器出口过热度进行控制，研究蒸发器出口过热度对于汽车空调性能、COP等参数的影响，研究结果表明，蒸发器能力随蒸发器出口过热度的减小而增大，在本文研究的系统中蒸发器的能力最多能被提升19.4%，系统COP随蒸发器出口过热度的减小先增大后减小，存在最大值，在本文研究的系统中系统COP最多能被提升17.8%。 |
| 关键词: 汽车空调 过热度 能力 COP |
| DOI： |
|
|
| 基金项目: |
|
| Experimental Study on the Effect of Superheat on Performance of Automotive Air-conditioning |
| Yan Ruidong,Shi Junye,Chen Jiangping |
| (Institute of Refrigeration and Cryogenics，Shanghai Jiao Tong University) |
| Abstract: |
| Superheat of evaporator outlet is a symbol of state of air-conditioning, in order to study the effect on the performance of evaporator and system in automotive air-conditioning, a serial experiments have been done. A new kind of valve has been used to control the superheat in the standard automotive air-conditioning bench, and the effect of superheat on the performance has been study. The results show, capacity of evaporator increases with the decreasing of superheat, and it can reach 19.4% in the study’s system. COP increases to a maximum value then decreases with the decreasing of superheat of evaporator outlet，and it can reach 17.8% in the study’s system. |
| Key words: automotive air-conditioning superheat capacity COP |
