Numerical Simulation Study on Influence of Equation of State on Internal Flow Field and Performance of S-CO2 Compressor

• Published in: Journal of thermal science Vol. 33; no. 3; pp. 888 - 898
• Main Authors: Zhang, Lei, Yang, Zhenyu, Sun, Enhui, Zhang, Qian, An, Guangyao, Yuan, Wei
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.05.2024; Springer Nature B.V
• Subjects: Brayton cycle; Carbon dioxide; Classical and Continuum Physics; Compressors; Critical point; Engineering Fluid Dynamics; Engineering Thermodynamics; Equations of state; Heat and Mass Transfer; Internal flow; Numerical stability; Physical properties; Physics; Physics and Astronomy; Power consumption; Pressure ratio; Simulation; Thermophysical properties; condensation; supercritical carbon dioxide; equation of state; centrifugal compressor; numerical simulation

The low power consumption of the near-critical compressor is the key factor for the high efficiency of supercritical CO 2 Brayton cycle. In the numerical simulation of the compressor, the rapid changes in the thermophysical properties of the CO 2 near the critical point make it difficult to capture...