A Cross-Flow Turbine Turned With Non-Uniform Flow Velocity On The Cooling Tower

The exhaust air from the cooling tower has a maximum velocity of 9 m/s and is more constant than the natural wind. This exhaust air stream has a non-uniform velocity profile. The cross-flow wind turbine with 400 mm diameter and 380 mm long are placed above the cooling tower to produce work. Variations in the blade angle and the blade radius of the turbine are tested to determine the effect on the resulting power and turbine performance on the graph of coefficient power (CP) versus tip speed ratio (TSR). The result shows that cross-flow wind turbine with blade angle 45 degrees has higher power than the other blade angle on all radius variation. The cross-flow wind turbine with a 60 mm radius of the blade on 45 degrees blade angle has the highest performance with 2.47 Watt maximum power on 4.31 m/s wind velocity, and Cp is 0.41 on 0.76 TSR.