异形竖板上降落液膜破裂的实验研究

EXPERIMENTAL STUDY OF THE FALLING FILM BREAKDOWN DOWN VERTICAL DIMPLED PLATE

异形竖板上降落液膜破裂的实验研究徐尧润，席华，刘振义，卢晓江，家继田（天津轻工业学院机械系天津３００２２２）关键词异形竖板，液膜破裂ＩＧＩＧ“在降膜蒸发器设计中要考虑的诸多ＩＭ素中，降落液膜的破裂是一个重要有面，［ＬＩ液膜破裂导致壁面形成于斑，使传热...

Under the state of surface evaporation, the experimental study of the falling film breakdown have been done down the vertical dimpled plate with 2 m long and 0.5 m wide. Falling film breakdown can be divided into temporary breakdown and permanent breakdown. The two main parameters relating to the falling film breakdown were critical heat flax and minimum flowrate per unit plate width. The correlations of critical heat flux and criterion for falling film breakdown were obtained to predict the falling film breakdown down vertical dimpled plate.