Experiment Study of Heat Transfer to Supercritical Water in a Triangular-Lattice Configuration

The experimental research of heat transfer to supercritical water in a triangular-lattice configuration has been performed on the supercritical water multipurpose test loop. Circumferential non-uniformed wall temperature distribution and heat transfer enhancement induced by the grids were observed in the bundles. The heat transfer data under conditions of different heat flux, mass flux and pressure were obtained. Finally, an empirical correlation with the prediction deviation of ±15% was developed to predict the supercritical heat transfer behaviors in the triangular-lattice.