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 ?
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.
The company will deliver air conditioning for the stadiums with its falling film water-cooled screw chillers, MAi full inverter intelligent variable refrigerant flow (VRF) systems and fan coil units
distillation facilities, cooling towers, vertical tube evaporators, falling film chemical reactors, food processing facilities, etc.
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.
Further evaluation of the evaporation heat transfer characteristics (single-tube pool boiling, bundle boiling, and falling film evaporation) of R1234ze is warranted.
P2 has already installed and run a pilot scale falling film reactor from Ballestra at P2's lab in New Haven, CT.
Traditionally, coffee extract is concentrated in an evaporation plant (for example, a falling film evaporator).
Taking this fact into account, the UV pre-vulcanization is carried out in a falling film photo reactor.
The company's CEO Hannes du Preez said: "We are seeing tremendous benefits: improved yield due to processing and inclusion of all stickwater - processed through new falling film evaporator - and reduced energy consumption thanks to the use of vapours ex steam dryers as energy source for evaporators and improved protein content in meal, as well as the elimination of air and sea pollution.
ISLAMABAD, January 24, 2010 (Balochistan Times): The status of falling film industry in Pakistan was the only reason for the worsening condition of cinema industry as its left its prints on closure of 850 cinema houses out of 1000 in the country.
Falling film and flooding phenomena in small diameter vertical tubes: the influence of liquid properties.