The effect of solidity on the performance of H-rotor Darrieus turbine

摘要: Utilization of wind energy has been investigated for a long period time by different researchers in ways. Out which, the Horizontal Axis Wind Turbine and Vertical have now advanced design, but still there is scope to improve their efficiency. The (VAWT) advantage over (HAWT) working on omnidirectional air flow without any extra control system. A modified H-rotor Darrieus type VAWT analysed this paper, which lift based turbine. effect solidity (i.e. chord length, no. blades) power coefficient (CP) tip speed ratios numerically investigated. study conducted using dependent RANS equations SST k-ω model. SIMPLE scheme used as pressure-velocity coupling all cases, second order upwind discretization chosen getting more accurate solution. In results, parameters are compared, depict performance VAWT. Double layered having inner layer blades with longer gives higher than those smaller chord.