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Cleaner, sweeter-smelling kitchens

Jeven has been in the professional kitchen ventilation business for 20 years and System Jeven equipment is widely known and respected. The company’s systems are based on a unique approach to supply air and the use of high-efficiency, easy-clean cyclone filters and other technologies.

Hygiene and smooth cooperation between staff are key priorities in professional kitchens, which are often hot and home to a variety of vapours, grease, and other impurities that call for efficient ventilation and grease removal. Space is often limited, and excess draughts or noise cannot be tolerated.

Ventilation systems and grease filters need to be designed, dimensioned, and installed appropriately to ensure the right level of performance. They must be easy to clean and capable of reducing the risk of fire – always a problem with grease if it collects in ducts – to a minimum.

Unique features

The System Jeven range offers a number of products to address these challenges and incorporates features such as Jeven’s unique fire-safe JCE cyclone filters. Based on the use of centrifugal force, these filters are ideal for removing grease particles from exhaust air. Thanks to their unique construction, they always operate at a constant pressure differential.

System Jeven JSI supply air hoods include supply and direction air units, cyclone grease filters, lighting, and airflow adjustment/measurement units. Tailored to the specific needs of individual kitchens, they provide high-quality, draught-free ventilation and enable air patterns and exhaust airflows to be controlled very precisely. Air diffusers for intake and control air can be freely placed along the sides of hoods, for example, making them very flexible.

Where large amounts of steam need to be removed, Jeven specifies its JSKI and JKI condensation hoods, which use unique condensation plates to separate water and grease.

Combination solutions

For particularly demanding environments and large kitchens, Jeven has developed the UV Combilux.

These units filter exhaust air in three steps, first separating particles in a cyclone filter before passing it through a wire net filter for further cleaning and temperature reduction, and then processing any remaining fats and odorants with UV light and ozone in a reaction chamber. UV light breaks down the protein chains of the fat, while ozone transforms the resulting decomposed fat molecules into CO2, water, and small amounts of dust. Any remaining surplus ozone is converted into oxygen.

In addition to reducing fire hazards by keeping ducting free of fat, the clean exhaust air filtered by a UV Combilux can be fed through heat exchangers to provide additional heat for a building, which is a big plus in today’s world of higher energy prices. The elimination of unwanted odour is also very welcome for staff and people living and working in the vicinity.

Jeven solutions offer guaranteed clean air for kitchens through customised modelling of air mass flows, pressure differentials, and sound volumes, and the use of advanced hoods and other systems.
> Kalle Korhonen
(Published in HighTech Finland 2009)