A hood , hoodor hood , or range hood is a device that contains a mechanical fan that hangs over a stove or stove in the kitchen. It removes fat in the air, combustion products, smoke, smoke, odor, heat, and vapor from the air by air evaporation and filtration. In commercial kitchens, exhaust hoods are often used in combination with fire suppression devices so that the smoke from the grease fire is properly discharged and the fire is exhausted. Commercial ventilation ships can also be combined with a fresh fan that pulls in the outside air, circulating with cooking smoke, which is then pulled out by the hood.
In most hoods, the filtration system removes fat (oil traps) and other particles. Although many ventilation hoods throw air out, some are recirculating the air into the kitchen. In recirculation systems, filters can be used to remove odor other than fat.
Video Exhaust hood
Name
This device is known as hoodor hood in the UK, as range hood in the United States, and as range in Australia. This is also called kitchen , burner , discard , cooker , confide , or < b> ventilation hood . Other names include cooking canopy , extractor fans , fume extractor , and electric chimney .
Maps Exhaust hood
Description
The hood of the extractor consists of three main components: a skirt or catch panel to accommodate ascending gas (also known as "effluent blob"), one or more fat filters, and a fan or tangential blower for forced ventilation.
There are two main configurations of extractor hoods: distributed (or vented) applications, and ductless (or recirculation) applications. In the distributed app, the output collar from the blower extractor hood motor is attached to the channel system, which ends outside the building. In a shapeless application, filters, often containing activated charcoal, remove odors and smoke particles from the air before releasing the cleaned air into the kitchen.
The channeling system makes it possible to remove all forms of air contamination, while the ductless one recirculates heat and moisture into the kitchen. In addition, dispatching applications eliminate the need for regular filter replacement, and avoid limiting the airflow (and resulting loss of power) caused by them. However, dispersing applications can be impractical, due to lack of space or the ability to install a channel system, make-up air requirements, or the additional cost of heating/cooling the make-up air. Some designs cover various hoods for both types of applications.
Disposal veils almost always include built-in lights to illuminate the cooking surface. In addition, some manufacturers offer matching accessories, such as backsplash panels, pot shelves, shelf units, or dish racks. The main advantage of extractor hoods is that it can easily filter airflow, without damaging edible material and can be easily installed if semi-automatic.
The extractor hood control is typically electronic, although some low-end models use electromechanical controls. Veil extractors with electronic controls can offer remote control, motor alignment adjustment, heat sensor, overheat protection, push mode, delayed shutdown, filter cleaning reminders, active noise relievers, temperature display, user presets (memory), and so on.
Extractor hoods can be made from various materials, including: stainless steel, copper, bronze, nickel silver, zinc, tempered glass, wood, aluminum, brass, heat-resistant plastic, and more.
NFPA 96 Standard for Ventilation Control and Fire Protection from Commercial Cooking says that mesh filters should not be used. Needed "Listed" grease filters should be tested in accordance with UL 1046, Standard for Grease Filters for Drainage.
Hood Over Hang
A larger hung hood is advised to help control the fire in the hood area that is protected by a fire suppression system.
See also
- Acid Cupboard
- Kitchen ventilation
- The smoke canopy
References
External links
- Article: "Oversized Kitchen Fans - A Tiring Problem" by Bruce Manclark in Home Energy Online Magazine January/February 1999
Source of the article : Wikipedia
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