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ISSN Online: 2377-424X

ISBN Print: 1-56032-797-9

International Heat Transfer Conference 11
August, 23-28, 1998, Kyongju, Korea

Heat Transfer Behavior in a Sodium Loop due to Inlet Flow Change: Experiments and Numerical Calculations

Get access (open in a dialog) DOI: 10.1615/IHTC11.2150
pages 57-62

摘要

Heat transfer behavior due to an inlet flow change is investigated experimentally and numerically in order to investigate the safety of the natural circulation operation in the decay heat removal in liquid metal reactors. A symmetrically shaped and unsymmetrically heated sodium loop is considered where the natural circulation is represented by a fluid injection. It is found that the flow developed by the urisymmetrical heating in the sodium loop is reversed by the fluid injection at a certain inlet flow rate Vbr. It is also found that near the reversal, there is a sudden increase in temperature, which is very dangerous in reactor operations. As the flow rate grows beyond Vbr, the temperature decreases, which implies the possibility of a forced convection operation in the decay heat removal. A one-dimensional model is considered and numerical calculations for the model are also performed. The numerical results are compared with the experimental results.