A new equation of state to predict S-CO2 flow with real gas effects

作者：Raman Senthil Kumar; Kim Heuy Dong^*

来源：Journal of Mechanical Science and Technology, 2018, 32(3): 1099-1104.

DOI：10.1007/s12206-018-0212-y

• Equation of state
• Supercritical carbon dioxide
• Centrifugal compressor
• Real gas properties

The accuracy of the thermodynamic properties prediction from the different Equation of state (EOS) varies upon the range of temperature and pressure. Despite the variety of EOS available, there is no de facto for selecting an EOS for particular computational modeling. The EOS model recently developed by Kumar and Kim (K-K EOS) determines more accurately the thermodynamic properties of CO2 than earlier models. In this present study, K-K EOS is successfully implemented in the computational analysis of compressible supercritical CO2 flow (S-CO2) in the thermodynamic region near and away from the vapour-liquid critical point. Computational results of SCO2 flow with the real gas properties predicted with the K-K EOS is compared with Span and Wagner (SW EOS) and ideal EOS.

• 出版日期2018-3