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Bahrain World Trade Center

Bahrain World Trade Center, which pioneered a new trend by using wind turbines for the first time in the building, has an important place in this area. This building is located at the focal point of the master project, which includes the renovation project of an existing hotel and shopping center in Manama, Bahrain's main business center overlooking the Arabian Gulf. These two 50-story sail-shaped office towers each reach 240 m in height and house 3 horizontal axis wind turbines, each 29 m in diameter. The base part includes a new shopping mall, restaurant, business center and car park.

Bahrain World Trade Center Design

The two towers in the form of an elliptical plan are placed in the form of a V in the plan and are positioned to absorb the breeze coming from the bay. The elliptical plan and sail form create positive pressure in front of the buildings and negative pressure behind the buildings, pulling the breeze in the bay between the two towers and increasing the speed of the wind.

Bahrain World Trade Center Wind Turbine Values

It is thought that the speed of the wind increases as you rise, but this does not affect the energy gains of the turbines much; 1. turbine; 340-400 MWh / year, 2nd turbine; 360-430 MWh / year, 3rd turbine 400-470 MWh / year. Considering that the turbine in the middle produces 100%, the upper turbine produces 109% and the lower turbine produces 93%. The energy gained from these turbines is 1100 to 1300 MWh per year, which approximately meets 11-15% of the annual energy needs of the towers. According to the carbon emission measurement, this value corresponds to 2900 kg K (oil burning power station) or 2000 kg K (gas burning power station). The pressure exerted by the loads on the propellers to the engine box, from there to the bridge, and from there to the building, was an important factor in the design of the structural systems of the buildings.

Turbines are standard speed controlled types. The rotor blades are placed at a fixed angle to their axles and the cross section of the blades is designed to protect the lift (axle) by creating turbulence in the blades when very high speed winds come. Considering the risks of wind turbines according to the prevailing wind direction, it has been observed that wind turbines should receive winds between 285º and 345º in a narrow range. All winds other than these degrees show ineffective wind characteristics in the turbine. The form of the towers is effective in increasing the airflow passing between them by up to 30%.

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