The turbine impeller has a diameter of 745 meters and rotates at a frequency of 93.08 m / s.

The turbine impeller has a diameter of 745 meters and rotates at a frequency of 93.08 m / s. Turbine rotation period? What is the centripetal acceleration of the turbine blade tips?

Data: d (diameter of the impeller of the used turbine) = 7.45 m; ν (rotational speed) = 93.08 rpm = 1.55 rpm.

1) The period of rotation of the used turbine: T = 1 / ν = 1 / 1.55 = 0.645 s.

2) Centripetal acceleration of the ends of the blades: an = 2 * Π ^ 2 * d * ν ^ 2 = 2 * 3.14 ^ 2 * 7.45 * 1.552 ≈ 353 m / s2.

Answer: The rotation period of the used turbine is 0.645 s; the centripetal acceleration of the tips of the blades is 353 m / s2.