Falling behavior and control effect on temperature rise under heating condition concerning water film flow on steel shutter surface

A series of experiments were carried out regarding water film flow formed by a water discharge system on surfaces of steel shutters. First, the water film flow formed on the convex surfaces of main curved parts of connected shutter slats was observed under non-heating condition. Next, temperature distribution etc. of the steel shutter formed water film were investigated under heating condition by using the radiation panel. In this study, fundamental knowledge about the behavior of water film flow on steel shutter surface under non-heating condition and the thermal insulation effect etc. by water film under heating condition could be acquired.