Downcomer Liquid Load in Column Design Formulas

Downcomer Liquid Load refers to the velocity of clear liquid component flowing through the downcomer entrance of a tray. And is denoted by Q_D. Downcomer Liquid Load is usually measured using the Meter per Second for Speed. Note that the value of Downcomer Liquid Load is always positive.

Formulas to find Downcomer Liquid Load in Column Design

fxDowncomer Liquid Load in TraysGo

Column Design formulas that make use of Downcomer Liquid Load

fxWeep Fraction of TrayGo

fxLiquid Flowrate over Tray for given Dowcomer Liquid LoadGo

List of variables in Column Design formulas

fx Liquid Flow over Tray Go

fx Downcomer Area Go

FAQ

What is the Downcomer Liquid Load?

Downcomer Liquid Load refers to the velocity of clear liquid component flowing through the downcomer entrance of a tray. Downcomer Liquid Load is usually measured using the Meter per Second for Speed. Note that the value of Downcomer Liquid Load is always positive.

Can the Downcomer Liquid Load be negative?

No, the Downcomer Liquid Load, measured in Speed cannot be negative.

What unit is used to measure Downcomer Liquid Load?

Downcomer Liquid Load is usually measured using the Meter per Second[m/s] for Speed. Meter per Minute[m/s], Meter per Hour[m/s], Kilometer per Hour[m/s] are the few other units in which Downcomer Liquid Load can be measured.

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