Study on the Performance of Collaborative Production Mode for Gas Wave Ejector

Yiming Zhao, Haoran Li, Dapeng Hu, Minghao Liu and Qing Feng
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Yiming Zhao: Department of Chemical Machinery, Dalian University of Technology, Dalian 116012, China
Haoran Li: Department of Chemical Machinery, Dalian University of Technology, Dalian 116012, China
Dapeng Hu: Department of Chemical Machinery, Dalian University of Technology, Dalian 116012, China
Minghao Liu: Department of Chemical Machinery, Dalian University of Technology, Dalian 116012, China
Qing Feng: Department of Chemical Machinery, Dalian University of Technology, Dalian 116012, China

Sustainability, 2022, vol. 14, issue 12, 1-21

Abstract: Gas wave ejector (GWE) is an efficient ejection equipment using pressure waves to extract and transfer energy. However, at present, GWE is designed only for single condition, not fully utilizing the production capacity. The collaborative production mode using one equipment to work simultaneously under two different conditions was proposed to resolve this issue in this study, and was analyzed by combining numerical simulation and experimental test. The research results show that the collaborative mode almost has no effects on average total efficiency compared to single mode. In the range of tests, the efficiency difference between two modes is within 4.4%. The state parameters of the stable-pressure region (where channels are closed at both ends) on one condition are the initial parameters of the functional region on the other condition in collaborative mode, accounting for the difference between single and collaborative mode. The variations of performance parameters (ejection rate and the isentropic efficiency) with the medium-port pressure in collaborative mode was similar to that of the single mode. Thus, the performance parameters difference between two modes can be predicted by the relative relationship between the medium-port pressure and the average pressure in stable-pressure region of GWE in single mode. In conclusion, the collaborative mode improves the utilization of equipment while maintaining total efficiency, which can promote the popularization and application of GWE.

Keywords: efficient energy extraction; ejector; collaborative mode; wave rotor; experiment and simulation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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