The turbine has an impeller diameter of 9 m and makes 60 revolutions in 62.8 s.
| September 6, 2021 | education
The turbine has an impeller diameter of 9 m and makes 60 revolutions in 62.8 s. Determine the linear speed of the turbine blade tips.
To determine the value of the speed of the ends of the blades of the used turbine, we apply the formula: V = 2 * Π * R * ν = Π * d * N / t.
Variables: d – impeller diameter (d = 9 m); N is the number of perfect revolutions (N = 60 revolutions); t is the duration of the turbine operation (t = 62.8 s).
Calculation: V = Π * d * N / t = 3.14 * 9 * 60 / 62.8 = 27 m / s.
Answer: The blade tips of the turbine used have a linear velocity of 27 m / s.
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