Overall System Efficiency (\( \xi_s \)):

\[ \xi_s = \left( \frac{Pw}{MHP} \right) \times 100 \]

Where:

• \( \xi_s \) is the overall system efficiency, in percentage (%).
• \( Pw \) is the water horsepower, in horsepower (hp).
• \( MHP \) is the motor horsepower, in horsepower (hp).