TurboSwing
Turboswing is a type of grease filter used in kitchen ventilation to remove grease particles from the air. It is typically installed inside the extractor hoods of restaurant kitchens. Its operation is based on a rotating filtering medium.[1][2]
How it works
The main difference between turboswing and most common filters is that in turboswing filters the filtering medium is not static. There is a perforated disk rotating at high speed.[1] When the grease particles go through the rotating disk they are separated from the air.
After separation, centrifugal force due to the rotating disk throws particles against the inner walls of the filter.[3] Particles then drip down the walls of the chamber onto the lower collection basin, where they stay until they are removed through the tap at the bottom of the filter dome.[4]
Smaller particles
Turboswing filters can remove grease particles starting from 4μm, as opposed to 8μm for common filters. This is because the filtering medium is moving, and this increases the probability of collision between the filter and the particle.[1][5][6][7]
Varying airflow
Turboswing filters can work with varying airflows. The grease extraction level is not affected by the airflow. This means that this kind of filter can be used in restaurants that turn down the air volumes at non-peak times in order to save energy.
The explanation is that if the airflow is lower, the particles go through the rotating disk at a slower speed, therefore increasing, the collision probability. Other filters like cyclonic filters require the airflow to be high on a permanent basis, or else the performance of the filter drops. Therefore, the use of filters like turboswing make it possible to save vast amounts of energy in restaurant kitchen ventilation.[8][9]
Heat recovery
Turboswing grease filters make it possible to do heat recovery with the air of a kitchen.[10] Unlike common filters, turboswing filters extract the small particles responsible for making the heat exchanger dirty.[5]
Heat recovery makes it possible to save energy in the ventilation of a building. In particular, kitchen air is hotter than the air in most other rooms, and therefore a large amount of energy can potentially be saved. However, when it comes to the ventilation of a kitchen, if the correct kind of filter is not used, heat recovery can be very difficult or even impossible, because of the presence of grease particles in the air. Grease particles accumulate at the heat exchanger, rendering it useless very quickly.[11]
In order to have heat recovery in a kitchen, the air must be completely clear of grease, in other words, both large and small grease particles must be removed from the air. Static filters cannot adequately deal with small particles, therefore making it impossible to recover heat. Turboswing filters exhibit high performance in dealing with small particles, and this is why they enable heat recovery to be done with kitchen air.[1][11]
References
- ^ a b c d "Ventilation 2012" (PDF). Inrs-ventilation2012.fr. Retrieved 2015-03-28.[permanent dead link]
- ^ "VTT Review 2010". Vtt.fi. Archived from the original on 2016-03-04. Retrieved 2015-03-28.
- ^ "Arven, Fabricantes de Campanas extractoras, Unidades de Ventilación, Filtros electroestáticos. - Sistema de filtración TurboSwing". Arven.es. Archived from the original on 2015-04-02. Retrieved 2015-03-28.
- ^ "VTT Impulse 2/2010 - Sivu 48". Digipaper.fi. Archived from the original on 2015-04-02. Retrieved 2015-03-28.
- ^ a b [1] [dead link]
- ^ "Par Jeven prezentē jauno TurboSwing tauku separatoru". Lindab.com. Retrieved 2015-03-28.
- ^ Natalia Shevchenko. "Problems of Grease and Its Solutions in Commercial Kitchens" (PDF). Publications.theseus.fi. Retrieved 2015-03-28.
- ^ "High Technology Finland - Energy & The Environment". Hightech.fi. Archived from the original on 2015-04-02. Retrieved 2015-03-28.
- ^ "Produkter TS". Venti.dk. Archived from the original on 2015-04-02. Retrieved 2015-03-28.
- ^ "Modular Canopies Available To All". Bmsnewsletters.co.uk. Retrieved 2015-03-28.[permanent dead link]
- ^ a b Popravko Veronika. "Heat Recovery Potential of a Canteen" (PDF). Publications.theseus.fi. Retrieved 2015-03-28.
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