Surge Tank Sizing (Advanced) Advanced Design

Design surge tank for varying flow conditions and transient pressures. Input flow rate, time to closure, and maximum surge pressure.

1. Penstock & Flow

2. Surge Pressure & Closure Time

Theory and Formulas

1. Surge Tank Volume:
Formula: Surge Tank Volume = (Flow Rate * Closure Time) / (2 * Wave Speed).

2. Maximum Surge Pressure Increase:
Formula: Surge Pressure = (Flow Rate * Closure Time) / (2 * Penstock Diameter).

Source: Standard surge tank design equations (Joukowsky’s Equation).