Experimental Research on Effect of Rolling on Natural Circulation Flow and Heat Transfer

Single-phase natural circulation flow and heat transfer characteristics under rolling conditions are studied experimentally. The experiment results show that compared with the results under non-rolling condition,the natural circulation flow rate decreases under rolling condition. As the rolling frequency and amplitude increases,the flow rate reduces but the heat exchange increases. The empirical correlations for natural circulation flow rate and heat exchange are obtained by fitting the experimental data under rolling mo-tions.