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AlfaCond Plate Condensers

Looking for an alternative to convention shell and tube condensers? Alfa Laval's AlfaCond, the world's first plate condenser, requires less space, material, money and still provides higher heat transfer efficiency.

AlfaCond is the world's first tailor-made plate condenser. It was developed specifically for condensing vapours under low pressure/vacuum conditions in evaporation and distillation systems. A whole range of AlfaCond condensers is available to suit specific applications and capacity requirements.

How It Works
AlfaCond is tailored for vacuum condensation. The vapour inlet connection is very large whereas the two condensate outlets are small. The cooling water connections are medium-sized and located in the centre of the plate. AlfaCond consists of a plate pack with plates welded together in pairs forming so-called cassettes. The cassette concept gives rise to two different type of channels - welded channels used for the condensing vapour and gasketed channels used for the cooling water.

The plate pattern is specifically designed for optimal condensation, with an asymmetric configuration that features a large gap on the vapour side and a small gap on the cooling water side. This makes it possible to maintain a very low pressure drop on the vapour side while keeping up the velocity and turbulence on the water side. This maximizes the heat transfer efficiency and minimizes fouling.

Why Choose AlfaCond?
Lower costs because the high heat transfer efficiency means that much less heat transfer area is needed compared to a conventional shelland-tube. This makes AlfaCond more cost effective, especially if stainless steel or titanium is required. The compactness of the design also saves space, which reduces transport, erection and installation costs.

Less fouling on the cooling water side compared to shell-and-tube condensers, due to the high turbulence created by the special design of the corrugated plates.

Easy cleaning of the cooling water side using either mechanical or chemical means.

Easy to increase capacity by just adding extra cassettes in the existing frame.

Fully counter-current flow, which makes it possible to sub-cool the non-condensable gases better than in a comparable shell-and-tube installation. This reduces the load on the vacuum pump.

Applications
Examples of installed applications There are more than 1500 AlfaVap and/or AlfaCond installations in different applications all over the world. Alfa Laval can provide a complete range of AlfaVap and AlfaCond units for a large range of applications and capacities. Some of the applications where AlfaVap and/or AlfaCond units are installed include: Alumina liquor Ammonium lactate Ammonium nitrate Beet sugar Calcium chloride Cane sugar Copper electrolyte Corn steep liquor Dextrose Effluent streams Electrolytes Ethanol reboilers Ethylene glycol Ferric chloride Fish and meat extract Fish and meat stick water Fish silage Fructose Fruit juice Gelatine Gluconic acid Glucose Glycerine Hydrolysate Kaolin Lactic acid Lysine Maltodextrine Maltose MEA reboilers Polyols Soap Sodium chloride Sodium hydroxide Sodium sulphate Sorbitol Stillage Waste waters Vinasses

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