...]. Turbine pair; Power coefficient Depending on the axis of rotation, modern wind turbines are normally classified into two main categories: horizontal axis NOMENCLATURE wind turbines (HAWTs) and vertical axis wind turbines (VAWTs) [2]. VAWTs have certain advantages over HAWTs, such Variables as lower center...

... Wake characteristics and power coefficient of laboratory scaled marine hydrokinetic cross flow turbines were studied both experimentally and numerically. Single and turbine pair configurations were experimentally tested in a 3.5 m long, 0.3 m wide and 0.15 m deep water channel facility. Each turbine...

.... Furthermore, the performance of a wind turbine in steady and natural winds can be investigated. From the results, it is made clear that integral scale has a large effect on the wind turbine performance. The maximum power coefficient in natural wind of the integral scale 5 m and 10m is 124% larger than one...

..., noise level, safety, and durability. The twin-rotor, WindJet turbine of the rated capacity of 5 kW resulted in an annual capacity of 26% or more at average wind speed of 6m/s, and a turbine efficiency of 50% or more. Vertical-Axis Wind Turbine (VAWT) Twin-rotor Power Coefficient Tip Speed Ratio...

... 30 07 2010 A helical Savonius rotor with two blades and 180 degree helical angle is researched to optimize the rotor power coefficient C P via numerical study from different parameters like overlap ratio, diameter of endplates, and number of inner plates within buckets and aspects...

... from 3m/s to 7m/s, the maximum power coefficient reached the limit value of about 0.6 based on the rotor area, which is much higher than those of ever-designed three-bladed horizontal turbines. The maximum power coefficients occurred FICIENT, VERTICAL WIND TURBINE W.-S. Song / Dept. of Mechanical...