The practical use of supercritical carbon dioxide ( sCO 2 ) for systems operating on the Brayton cycle is currently difficult due to the occurrence of nonequilibrium and uncontrolled states near the critical point. This paper provides an analytical overview of existing mathematical models and theories to predict the occurrence of a condensing state and its effect on compressor performance in conditions of a critical point. It was found that the combination of the nonequilibrium condensation model and the nucleation model with the numerical solution technique for modeling sCO 2 flows using a turbulent model of shear stress in supercritical, metastable, and saturated regions allows one to obtain model representations of the effect of condensation on the flow efficiency. This approach allows one to more accurately calculate the local position, the rate of formation of the nucleated drop, and the boundary conditions for the onset of spontaneous condensation. The results obtained can be used to develop methods for predicting the effect of condensation on the blade load and compressor performance.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Influence of Supercritical Carbon Dioxide Condensation on Flow and Performance


    Contributors:

    Published in:

    Publication date :

    2020-12-09


    Size :

    7 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    Condensation in carbon dioxide jet plumes

    BEYLICH, A. E. | AIAA | 1970


    SUPERCRITICAL CARBON DIOXIDE POWER GENERATION SYSTEM

    HAM JIN KI / LEE SUNG WON / BAEK WON KYE | European Patent Office | 2016

    Free access

    SUPERCRITICAL CARBON DIOXIDE POWER GENERATION SYSTEM

    HAM JIN KI / LEE SUNG WON / BAEK WON KYE | European Patent Office | 2016

    Free access

    Supercritical Carbon Dioxide Power Generation System

    JANG YOON AH / MOON YOUNG SIK / AHN SUNG IL et al. | European Patent Office | 2018

    Free access