关于SYSTEM LIMIT的定义,下面的描述是定义, 国外各家公司的公式都不一样,见过没用过.
Each system has a limiting or ultimate capacity at a constant diameter which cannot be exceeded by changing the tray design or by increasing the tray spacing. This phenomenon is associated with the interaction between the vapor and liquid spray in the intertray space and is not related to the hardware used on the tray. This occurs when there is substantial net upward flow of the liquid relative to the total liquid flow, and is a function of the terminal velocity of the liquid drops populating the intertray space. |