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EXPERIMENTAL AND ANALYTICAL STUDIES OF VERTICAL AXIS WIND TURBINES
https://doi.org/10.15518/isjaee.2018.22-24.051-058
Abstract
The article carries out the experimental and analytical studies of three-blade wind power installation and gives the technique for measurements of angular rate of wind turbine rotation depending on the wind speeds, the rotating moment and its power. We have made the comparison of the calculation results according to the formulas offered with the indicators of the wind turbine tests executed in natural conditions. The tests were carried out at wind speeds from 0.709 m/s to 6.427 m/s. The wind power efficiency (WPE) for ideal traditional installation is known to be 0.45. According to the analytical calculations, wind power efficiency of the wind turbine with 3-bladed and 6 wind guide screens at wind speeds from 0.709 to 6.427 is equal to 0.317, and in the range of speed from 0.709 to 4.5 m/s – 0.351, but the experimental coefficient is much higher. The analysis of WPE variations shows that the work with the wind guide screens at insignificant average air flow velocity during the set period of time appears to be more effective, than the work without them. If the air flow velocity increases, the wind power efficiency gradually decreases. Such a good fit between experimental data and analytical calculations is confirmed by comparison of F-test design criterion with its tabular values. In the design of wind turbines, it allows determining the wind turbine power, setting the geometrical parameters and mass of all details for their efficient performance.
About the Author
B. P. Khozyainov
T.F. Gorbachev Kuzbass State Technical University
Russian Federation
Russian Federation
Boris Khozyainov - Ph.D. in Engineering, Associate Professor, T.F. Gorbachev Kuzbass State Technical University
28 Vesennyaya St., Kemerovo, 650000
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Review
For citations:
Khozyainov B.P. EXPERIMENTAL AND ANALYTICAL STUDIES OF VERTICAL AXIS WIND TURBINES. Alternative Energy and Ecology (ISJAEE). 2018;(22-24):51-58. (In Russ.) https://doi.org/10.15518/isjaee.2018.22-24.051-058
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