Scaling parameter of CHF under oscillatory flow conditions

Abstract

Critical heat flux (CHF) is reduced by flow oscillations. The reduction of CHF is significantly influenced by flow oscillation period and amplitude, heat capacity of test tube, and mean inlet mass flux. A scaling parameter of the temperature response of the tube wall was derived based on a lumped-parameter model of the tube wall's heat capacity. When this scaling parameter was applied to CHF under flow oscillations, the experimental data were successfully correlated. © 1999 Scripta Technica, Heat Trans Asian Res, 28(6): 541–550, 1999