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An energy tower (also known as a downdraft energy tower, because the air flows down the tower) is a tall (1,000 meters) and wide (400 meters) hollow cylinder with a water spray system at the top. Pumps lift the water to the top of the tower and then spray the water inside the tower. Evaporation of water cools the hot, dry air hovering at the top.
In 1961, Jenn-Air's integration of one of these fans to a cook-top range led to the invention of the first self-ventilated downdraft range. [1] The company expanded its product line to include many other kitchen appliances including microwave ovens , refrigerators , dishwashers , and small appliances such as mixers and blenders.
KitchenAid is an American home appliance brand owned by Whirlpool Corporation.The company was started in 1919 by The Hobart Manufacturing Company to produce stand mixers; the H-5 is the first model that was introduced.
The former KitchenAid division was formed in 1919. In 1934, Hobart bought the Dayton Scale Company (an IBM division) from IBM. Dart & Kraft acquired Hobart in 1981. [3] KitchenAid was sold to Whirlpool Corporation in 1986 [4] after the consummation of a $150 million purchase offer proposed in January 1985. [5]
Downdraft tables or downdraught benches are workbenches with built-in ventilation to capture dust, smoke, and fumes and draw them away from the operator and the material being worked on. [1] They typically consist of a perforated surface whose underside is connected to a ventilation or dust collection system, to draw material through the holes ...
Even a relatively modest negative buoyancy can result in a substantial downdraft if it is maintained over a relatively large depth. A downward speed of 25 m/s (56 mph; 90 km/h) results from the relatively modest NAPE value of 312.5 m 2 s −2. To a first approximation, the maximum gust is roughly equal to the maximum downdraft speed. [16]