Experimental study on heat transfer characteristics of supercritical carbon dioxide in horizontal tube

摘要

The heat transfer characteristics of supercrit-ical carbon dioxide in a horizontal tube with water in the vertical cross flow form were experimentally investi-gated. The results indicate that the changes of inlet pres-sure, mass flow rate, and cooling water flow rate have major effects on heat transfer performance. The varia-tions of Reynolds number and Prandtl number were obtained in counter flow and vertical cross flow. The four conventional correlations for convection heat transfer of supercritical carbon dioxide were verified by the experi-mental data in this study and the correlation agree with this experimental condition was determined.