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Kitchen ventilation is the branch of ventilation specialising in the treatment of air from kitchens. [1] It addresses the problems of grease, smoke and odours not found in most other ventilation systems.
A backdraft (North American English), backdraught (British English) [1] or smoke explosion is the abrupt burning of superheated gases in a fire caused when oxygen rapidly enters a hot, oxygen-depleted environment; for example, when a window or door to an enclosed space is opened or broken. Backdrafts are typically seen as a blast of smoke and ...
Interior of German mechanical fire damper inside of a galvanised steel duct. Fire dampers (or fire shutters) are passive fire protection products used in heating, ventilation, and air conditioning (HVAC) ducts to prevent and isolate the spread of fire inside the ductwork through fire-resistance rated walls and floors. [1]
Such an event is known as backdraft. A delayed flashover occurs when the colder gray smoke cloud ignites after congregating outside of its room of origin. This results in a volatile situation, and if the ignition occurs at the ideal mixture, the result can be a violent smoke gas explosion.
The first attempt was in 1983 when U.S.-based Patton Industries imported the electric oscillating fans, relabeled them "KDK by Patton", and the ceiling fans were then relabeled "RoyalAire" by Sumitomo America, one of Matsushita's banks, shareholders and insurance providers. This was a failure as the products never caught on with consumers.
Backdraft is a 1991 American action thriller film directed by Ron Howard and written by Gregory Widen. Starring Kurt Russell , William Baldwin , Scott Glenn , Jennifer Jason Leigh , Rebecca De Mornay , Donald Sutherland , Robert De Niro , Jason Gedrick , and J. T. Walsh , it follows Chicago firefighters on the trail of a serial arsonist .