Abstract

An investigation was conducted for steam condensation with high fractional CO2 on a horizontal tube. Condensation heat transfer characteristics were obtained with a steam mixture velocity of 0.21 m/s and CO2 mass fraction of 11.2%–89.7%. The condensation heat transfer performance significantly deteriorated with the increase of the concentration of CO2, decreased with the increase of surface sub-cooling and this influence decreased as the CO2 mass fraction increased. Also, the variation amplitude of heat transfer coefficient decreased with the increase of CO2 concentration. In addition, the correlation based on experimental data expanded its scope of application significantly compared with previous literature.

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