falling film

falling film

[′fȯl·iŋ ‚film]
(fluid mechanics)
A theoretical liquid film that moves downward in even flow on a vertical surface in laminar flow; the concept is used for heat-and mass-transfer calculations.
References in periodicals archive ?
TFD will provide Southeast Asia with Sales, Installation, Training and Customer Service for Delta's core product line of extractors (CUP-15 and CUP-30) and falling film evaporators (FFE-45 and FFE-60), followed by its complete product lineup in early 2020.
The agreement is titled Panther Partnership and New Technology for Evaporators under which both the companies will ensure that all future falling film evaporators will be installed by TetraPak, at all RFC operating companies in 32 countries globally.
Under this agreement, both the organizations will ensure that all future falling film evaporators will be installed by TetraPak.
The commission will further peep into whether the plant pioneered in the province, technologies, such as diffuser instead of primary juice extraction mills, falling film evaporators instead of Robert evaporators and electric motors instead of steam-driven technologies for more efficient mechanical output in the production process.
The multistage process includes MVR falling film evaporation, two-stage crystallization in a HPD draft tube crystallizer and a HPD MVR crystallizer to produce anhydrous sodium sulfate that is dried for sale.
As seen in Figure 1, in the falling film reactor, the PET melt after the screw melting flows through the multiple layers from the top to the bottom without agitation, in order to generate large volatilization areas for removing small molecules at high temperature and high vacuum.
distillation facilities, cooling towers, vertical tube evaporators, falling film chemical reactors, food processing facilities, etc.), due to their high efficiency in heat and mass transfer.
In an absorber, the LiBr solution flows through the heat exchange tube bundles from the top of the exchanger to form the falling film and maximize the solution exposure to the ambient water vapor coming from the evaporator.
The process includes milk reception from farms in New Zealand's central North Island followed by heat treatment, separation and dosing of vegetable oils, powders, vitamins and minerals; concentration using falling film evaporators; spray drying; and packing into bulk bins and, once quality is assessed, packing into retail cans.
The evaporator was of "falling film" design with copper enhanced surface tubes.
P2 has already installed and run a pilot scale falling film reactor from Ballestra at P2's lab in New Haven, CT.