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Experimental investigation of power for H-type Darrieus vertical axial wind turbine by mounting Gurney flaps was carried out. The influenced rules of the height of Gurney flaps on the power of H-type Darrieus vertical axial wind turbine under different height of flaps were achieved, and the optimal height of Gurney flap was presented. At last, the mechanism of wind turbine performance controlled by...
The paper establishes a calculation model for aerodynamic parameters and performance for horizontal shaft wind turbine according to strip theory, in the design, the strip theoretical is revised by considering the parameters included the blade tip loss, blade root loss, cascade influence and heavy load operation. Blade aerodynamic shape of 1.5MW horizontal shaft wind turbine is finished, and aerodynamic...
The paper introduces thermal buoyancy effects to experimental investigation of wind tunnel simulation on direct air-cooled condenser for a large power plant. In order to get thermal flow field of air-cooled tower, PIV experiments are carried out and recirculation ratio of each condition is calculated. Results show that the thermal flow field of the cooling tower has great influence on the recirculation...
The paper introduces thermal buoyancy effects to experimental investigation of wind tunnel simulation on direct air-cooled condenser for a large power plant. Recirculation ratio of each measuring point is calculated by measuring temperature at the inlet of fans and outlet of finned tubes under different velocities and wind direction angles. The influence of wind velocity and wind direction on recirculation...
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