EXPERIMENTS ON HEAT-TRANSFER OF SMOOTH AND SWIRL TUBES UNDER ONE-SIDED HEATING CONDITIONS

To design the divertor plate for the next generation fusion machines w hich is subjected to high heat loads on its one side by the plasma, it is essential to evaluate performances of heat transfer efficiency. Ho wever there is little in the literature for predicting of heat transfe r coefficients under such one-sided heating conditions. To establish t he heat transfer correlation for water under one sided healing conditi ons, the authors have performed heat transfer experiments on smooth ci rcular and swirl tubes in the regions From non-boiling to high subcool ed partial nucleate boiling, Based on the experimental results, it is confirmed that the existing heat transfer correlations can be applicab le at the non-boiling region. For the subcooled partial nucleate boili ng region, they cannot be available so that a new heat transfer correl ation has been proposed under one-sided heating conditions. Copyright (C) 1996 Elsevier Science Ltd.