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- 저자 : Mekuannint Messele (검색결과 1 건)
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Analysis and design of centrifugal compressor for 10 MWe supercritical CO2 Brayton cycles
Javad Hosseinpour,Mekuannint Messele,ABRAHAM ENGEDA 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.5
The concept of a closed-loop s-CO 2 Brayton cycle is highly attractive and promising; however, there is yet a major hurdle to overcome, namely, the designing, developing, and testing of a reasonable size (10 MWe or higher) prototype of an s-CO 2 Brayton-cycle-based power gas turbine. In the present paper, two well-known closed-loop s-CO 2 Brayton cycles, the simple recuperated and recompression cycles, were reconfigured to generate 10 MW electric power. It was found that the thermal efficiency of simple and recompression cycle was 43.2 %, and 54.2 %, respectively. Further, a 1-D compressor design code was developed by avoiding condensation margin and the Widom region and validated with Eckardt Impeller-A to proceed and design a single-stage s-CO 2 impeller for the simple recuperated power cycle. The results show that the diffusion rate along the blades (W 2 /W 1 ) is fairly high for the designed compressor. Additionally, blade angle distribution and the performance plots were computed by utilizing the developed code and presented for the simple recuperated cycle. Lastly, the 3-D impeller was generated and CFD analysis was performed and the results are reported.
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