The Impact of R50 on-100 °C three-stage Auto-cascade Refrigeration System

被引：0
|
作者：
Hu, Chunxia [1 ]
Shi, Yang [1 ]
Zhao, Xiangge [1 ]
Liu, Guanjun [1 ]
机构：
[1] Zhengzhou Univ Light Ind, Sch Electromech & Engn, Zhengzhou, Peoples R China
来源：
2013 INTERNATIONAL CONFERENCE ON MATERIALS FOR RENEWABLE ENERGY AND ENVIRONMENT (ICMREE), VOLS 1-3 | 2013年
关键词：
R50; auto-cascade refrigeration; mixed-refrigerants; cycle performance; PERFORMANCE; MODE;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this paper, a -100 degrees C three-stage auto-cascade refrigeration system is proposed and the experimental device is established. In order to determine the impact of R50 on the refrigeration cycle, the experiments are made by using mixed-refrigerants with R134a/R23/R14 and R134a/R23/R14/R50 containing the same quantity of R134a, R23 and R14 respectively in the same device. By analyzing and comparing the different effects of the two experiments, it is found that when R50 is added into the mixed-refrigerants, the evaporation temperature and the temperature after condensation at the second-stage and the third-stage partial condensers are lower, but the high pressure is increased. The higher the hige pressure is, the more power consumption is needed and more time is required to achieve the designed temperature. So it is harmful to the cycle performance of the three-stage auto-cascade refrigeration system when R50 is added into the mixed-refrigerants.
引用
收藏
页码：581 / 584
页数：4
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