Performance evaluation of a novel dual vane rotary compressor

10th International Conference on Compressors and their Systems

Shouman, A.^1 ; Hussin, A El Dein^2 ; Hamed, A.^2 ; Din, M Serag El^2 ; Mahmoud, N.^2 ; Baz, A. El^3

New Mexico State University, Las Cruces

NM, United States^1

Faculty of Engineering, Ain Shams University, Cairo, Egypt^2

Faculty of Engineering, British University in Egypt, Egypt^3

关键词: Design challenges;    Design geometry;    Geometrical factors;    Performance evaluations;    Positive displacement;    Pressure ratio;    Rotary compressors;    Volumetric efficiency;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/232/1/012060/pdf
DOI  :  10.1088/1757-899X/232/1/012060

来源: IOP

【 摘 要 】

Sliding-vane rotary compressors have considerable advantages in comparison with other positive displacement compressors in terms of volumetric efficiency, and continuity of flow without pulsations. However, sliding-vane rotary compressors have relatively low pressure ratio. This paper presents a novel design of a two-stage sliding-vane rotary compressor in attempt to elevate the pressure ratio of that type of compressors. The basic design features of the novel design are illustrated along with the adopted design geometry after studying the effects of several geometrical factors and their practicality. After several trials, the first prototype of the two-stage sliding-vane rotary compressor has been manufactured and tested experimentally to evaluate its performance. The paper reports the preliminary results of the flow rate, pressure rise and power consumption at different rotating speeds. Comparison of the performance of each stage is also included and the benefits of using the second stage are highlighted. The paper also summarizes the design challenges encountered during its manufacturing in addition to the challenges to reduce inter-stage leakage and the applied solutions.