What is the general attenuation rate of an energy storage power station

What is attenuation characteristics analysis based on a real pumped storage power station?

Attenuation characteristics analysis based on a real pumped storage power station The attenuation characteristics of the high-frequency pressure vibration in the pumped storage power station are analyzed in this section.

What is the maximum attenuation rate?

Thus, the maximum attenuation rate is less than 0.00092 (corresponding to 1200 m/s) and normally equals around 0.00031 (corresponding to 1100 m/s).

How do you determine the attenuation rate of a vibration?

Thus, the attenuation rate of the vibration could be directly derived from the wave speed. For example, the wave speed of the headrace tunnel in a pumped storage power station is usually set around 1100 m/s and normally will not exceed 1200 m/s in the hydraulic transient simulation [, , ].

Why does the attenuation rate increase with increasing spring constants?

Furthermore, the attenuation rate (negative direction) also increases with the increase of the spring constants because a better bounding condition could deliver more stress and vibration energy from the shell to the surrounding rock.

Why are pumped storage power stations important?

Pumped storage power stations play a crucial role in satisfying the increasing demand for electricity and balancing the intermittency of renewable energy sources [, , ].

Is the attenuation rate determined by the estimated wave speed?

To further illustrate the rationality of the strategy where the attenuation rate is determined by the estimated wave speed, the results of different combinations of axial and radial spring constants are compared and given in Fig. 9. Fig. 9. Vibration characteristics under different combinations of spring constants.