Abstract
This paper concerns the condensation of carbon dioxide and its heat transfer on a vertical surface in the subcritical region. In this region, the physical properties of carbon dioxide show significant temperature and pressure dependence. In particular, as the pressure increases and approaches the critical pressure, the difference in the properties of liquid and vapor, and surface tension approach zero. Therefore, condensate flow from natural convection decreases and the configuration of condensation may differ from that at lower pressures. In this study, the configuration of condensation is observed and at the same time, condensation heat transfer is obtained by measuring the volume of condensate. Heat transfer is discussed in connection with the configuration. © 1997 Scripta Technica, Inc. Heat Trans Jpn Res 25(4): 214–225, 1996
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