Experimental research on vapor-injected rotary compressor through end-plate injection structure with check valve. (December 2018)

• Record Type: Journal Article
• Authors: Wang, Baolong; Ding, Yunchen; Shi, Wenxing
• Is Part Of: International journal of refrigeration. Volume 96(2018)
• Page Start: 131
• Page End: 138
• Publication Date: 2018-12
• Subjects: Compressor -- Heat pump -- Vapor injection -- End-plate -- Rotary compressor -- Heating performance; Compresseur -- Pompe à chaleur -- Injection de vapeur -- Plaque d'extrémité -- Compresseur rotatif -- Performance de chauffage; Refrigeration and refrigerating machinery -- Periodicals; 621.56
• DOI: 10.1016/j.ijrefrig.2018.08.018
• Languages: English
• ISSNs: 0140-7007

Abstract

Abstract: Rotary compressors encounter severe performance degradation under low-temperature ambient conditions, and the vapor refrigerant-injection technology is one of the methods to solve this problem. Traditional vapor injection technologies provide a limited improvement in performance for rotary compressors. A novel end-plate injection structure was put forward in previous research. In this paper, a rotary compressor prototype with this novel end-plate injection structure was introduced. The performance of the vapor-injected rotary compressor was tested experimentally and compared with the regular one without vapor injection. The results indicated that, compared to a single-stage rotary compressor, a rotary compressor with the novel end-plate injection structure can enhance the heating capacity and COP by 16.2–31.6% and 5.1–12.0%, respectively.