Development of a Twin Screw CO2 Compressor for NH3/CO2 Cascade Refrigeration System

摘要：

The compressor is one of the key parts in a NH3/CO2 cascade refrigeration system,and it plays an important role to the system performance and running cost.A twin screw CO2 compressor used for low temperature refrigeration cycle was developed in this paper The lobe number of the male rotor is 5,and the female is 8.The rotor profile is calculated by adopting envelop method.The area of the discharge port is larger than that of the conventional twin screw refrigeration compressor. Calculation indicates that rotor deformation and bearing life span could meet the requirement of the application.It is shown that the twin screw CO2 compressor can be used for the NH3/CO2 cascade system.

关键词： Twin screw compressor CO2

作者: Bingming Wang Jianfeng Li Wangyang Hu Huagen Wu Ziwen Xing

作者单位: School of Energy and Power Engineering Xian Jiaotong University,Xian,P.R.China,710049 Chinese Association of Refrigeration CAR

会议类型: 国际会议

会议名称: 第六届压缩机与制冷国际会议(The 6th International Conference on Compressor and Refrigeration(ICCR))

会议地点: 西安

会议语种:英文

页码: 264-269

在线出版日期: 2008-09-25（万方平台首次上网日期，不代表论文的发表时间）