Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.
Forced convection heat transfer in supercritical carbon
dioxide (SCO2) was investigated experimentally in a horizontal
circular tube with an inner diameter of 8.7 mm. The experiments
were performed by varying the inlet fluid temperature, system
pressure, wall heat flux, and mass flow rate. The corresponding
Reynolds number at the inlet was between 20000 and 50000.
Nusselt number at each section in the tube was obtained to
investigate the influence of the experimental parameters on the
forced convection heat transfer in the testing tube. The obtained
heat transfer results were then compared with widely used
empirical correlations to show their prediction accuracy for the
experimental conditions tested.