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Advanced Engineering 2020

NEC, Birmingham(B40 1NT)

04/11/2020 - 05/11/2020

The UK's largest annual advanced manufacturing trade show, Advanced Engineering is your opportunity to (more)

Drives & Controls Exhibition

NEC, Birmingham(B40 1NT)

25/01/2021 - 27/01/2021

The show brings together key suppliers of state-of-the-art equipment representing the multi-tasking culture (more)

Skydive centre is flying high

Skydive centre is flying high
A new indoor skydive centre in Holland is flying high in the opinion of its enthusiastic users thanks to precise air control provided by twelve huge 200kW fans at the base of the tower. This maximum of 2.4MW of fan power is controlled by twelve freestanding 200kW Unidrive SP cubicle drives with an additional four 110kW Unidrive SP drives providing ventilation to control air temperature in the tower. All of these Control Techniques drives are fitted with plug-in applications modules and communicate with the touch-screen controller via the company's high-speed network, CTNet.

The Roosendaal indoor skydive centre was founded by a group of skydivers who had the dream of building the biggest such centre in Europe. Initial talks with ventilation company Rucon led to talks with motor manufacturer, Kolmer who, in turn, introduced Control Techniques. The team began to develop a design that could accommodate both professional skydivers and the general public and a specification that included a soft-start of the big fans, simple speed control and maximum energy efficiency to keep running costs as economical as possible. In addition, whilst the blown air had to be returned in a loop, there had to be provision for the introduction of fresh air to keep ambient temperatures within acceptable limits.

The resulting design comprises a 23.5m tower of 4.27m diameter with two flight chambers, the lower for experienced skydivers, the upper for the general public, access in both cases being via a bridge and airlock. A ring of twelve 200kW centrifugal fans, situated at the base of the tower and all locked together in speed by the Unidrive SP drives, blow air horizontally into the centre, where it is deflected vertically at a speed of up to 250kph by an aeronautically-shaped cone. At the top of the tower, air collectors return the air to the motor feeds, with the back-pressure reducing power consumption. The tower's tem-perature is monitored and, when the heat generated by the motors pushes the ambient beyond a comfortable level, four 110kW ventilation fans situated at the top of the tower expel a proportion of the hot air to allow the intake of fresh air into the system.
 

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