Sentences with phrase «upwind blades»
«Conventional upwind blades are expensive to manufacture, deploy, and maintain beyond 10 - 15 MW.
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Unlike horizontal axis wind turbines (HAWTs), which maintain a steady torque if the wind remains steady, VAWTs have two «pulses» of torque and power for each blade, based on whether the blade is in the upwind or downwind position.
The Economist reports on progress made by the Wind Turbine Company in creating a wind turbine which can have the blades downwind rather than upwind as is usual.
Modern turbines have blades on the upwind side.
The exascale turbines would be sited downwind, unlike conventional turbines that are configured with the rotor blades upwind of the tower.
«Whilst the aerodynamic noise from a rotating turbine blade produces energy in the infrasound range, measurements of infrasound noise emissions from modern upwind turbines indicates that at distances of 200 metres, infrasound is in the order of 25 dB below the recognised perception threshold of 85 dB (G) and other similar recognised perception thresholds (Hayes Mckenzie Partnership Ltd, 2006).