naa a22 4500 510766188 CHVBK 20180411083157.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s11630-013-0642-x doi (NATIONALLICENCE)springer-10.1007/s11630-013-0642-x Design and optimization of a single stage centrifugal compressor for a solar dish-Brayton system [Elektronische Daten] [Yongsheng Wang, Kai Wang, Zhiting Tong, Feng Lin, Chaoqun Nie, Abraham Engeda] According to the requirements of a solar dish-Brayton system, a centrifugal compressor stage with a minimum total pressure ratio of 5, an adiabatic efficiency above 75% and a surge margin more than 12% needs to be designed. A single stage, which consists of impeller, radial vaned diffuser, 90° crossover and two rows of axial stators, was chosen to satisfy this system. To achieve the stage performance, an impeller with a 6:1 total pressure ratio and an adiabatic efficiency of 90% was designed and its preliminary geometry came from an in-house one-dimensional program. Radial vaned diffuser was applied downstream of the impeller. Two rows of axial stators after 90° crossover were added to guide the flow into axial direction. Since jet-wake flow, shockwave and boundary layer separation coexisted in the impeller-diffuser region, optimization on the radius ratio of radial diffuser vane inlet to impeller exit, diffuser vane inlet blade angle and number of diffuser vanes was carried out at design point. Finally, an optimized centrifugal compressor stage fulfilled the high expectations and presented proper performance. Numerical simulation showed that at design point the stage adiabatic efficiency was 79.93% and the total pressure ratio was 5.6. The surge margin was 15%. The performance map including 80%, 90% and 100% design speed was also presented. Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag Berlin Heidelberg, 2013 Single Stage nationallicence Centrifugal Compressor nationallicence Design nationallicence Optimization nationallicence Wang Yongsheng Key Laboratory of Advanced Energy and Power Chinese Academy of Sciences, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 100190, Beijing, China aut Wang Kai Key Laboratory of Advanced Energy and Power Chinese Academy of Sciences, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 100190, Beijing, China aut Tong Zhiting Key Laboratory of Advanced Energy and Power Chinese Academy of Sciences, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 100190, Beijing, China aut Lin Feng Key Laboratory of Advanced Energy and Power Chinese Academy of Sciences, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 100190, Beijing, China aut Nie Chaoqun Key Laboratory of Advanced Energy and Power Chinese Academy of Sciences, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 100190, Beijing, China aut Engeda Abraham Department of Mechanical Engineering, Michigan State University, 48823, East Lansing, USA aut Journal of Thermal Science Springer Berlin Heidelberg 22/5(2013-10-01), 404-412 1003-2169 22:5<404 2013 22 11630 https://doi.org/10.1007/s11630-013-0642-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11630-013-0642-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Yongsheng Key Laboratory of Advanced Energy and Power Chinese Academy of Sciences, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Wang Kai Key Laboratory of Advanced Energy and Power Chinese Academy of Sciences, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Tong Zhiting Key Laboratory of Advanced Energy and Power Chinese Academy of Sciences, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Lin Feng Key Laboratory of Advanced Energy and Power Chinese Academy of Sciences, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Nie Chaoqun Key Laboratory of Advanced Energy and Power Chinese Academy of Sciences, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 100190, Beijing, China aut NATIONALLICENCE 700 1- Engeda Abraham Department of Mechanical Engineering, Michigan State University, 48823, East Lansing, USA aut NATIONALLICENCE 773 0- Journal of Thermal Science Springer Berlin Heidelberg 22/5(2013-10-01), 404-412 1003-2169 22:5<404 2013 22 11630 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer