Pumps as Turbines by Armando Carravetta Shahram Derakhshan Houreh & Helena M. Ramos

Author:Armando Carravetta, Shahram Derakhshan Houreh & Helena M. Ramos
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

5.3.1 System Capability

This indicator shows how well the system performs according to expectations. Considering the operating and working conditions of Fig. 5.7, the capability is defined as:

(5.4)

∆ti being the time interval with constant working conditions (Qi; ∆Hi).

It is interesting to stress that only in the ER mode does the system capability correspond to the average machine efficiency. In the other modes the system capability gives the fraction of the available power that is transformed by the hydropower plant into energy. In any case in which the target of the hydropower plant design is to maximize energy production, the system capability will be the only relevant performance indicator in the effectiveness equation.

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