Article

A transient surge study is needed for a 13-km buried pipeline carrying treated wastewater from an STP. The study will model the pipeline's existing geometry, elevations, and flow data. Simulations will cover pump start/stop sequences, planned valve maneuvers, and full power-failure scenarios.

The analysis will identify pressure extremes, vapor pocket risks, and column separation zones. Deliverables include a calculation report with model details, a marked-up General Arrangement Drawing (GAD) showing the recommended locations for valves and other devices, and a summary sheet with component specifications. Tools such as Bentley HAMMER, AFT Impulse, or Flowmaster may be used for the analysis.