Delivered Power (P_D)

Compute P_D via (A) P_E & η_H, (B) R_T & V_s & η_H, or (C) torque & RPM.

Method

Pick the route you have data for.

A) From Effective Power

P_E (kW)

η_H

P_D = P_E/η_H

Notes (optional)

P_D: — kW (— hp)

Echo: —

Choose the most convenient route. Delivered Power sits between P_E and Brake Power: P_B=P_D/η₀.

Report: Delivered Power (P_D)

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Notes

A) \( P_D = \dfrac{P_E}{\eta_H} \)

B) \( P_D = \dfrac{R_T V_s}{\eta_H} \) (use speed through water)

C) \( P_D = 2\pi n Q \) with \( n=\mathrm{RPM}/60 \) and \( Q \) in kN·m.