Hydraulic Institute Pump Handbook

Pump Total Dynamic Head (TDH) & Power Sizing

Calculates static lift, friction head, hydraulic HP, brake HP, and electrical power

Pump Total Dynamic Head (TDH) & Power Sizing Calculator Process & Field Engineering Reference
Engineering Process Reference: Pump Total Dynamic Head (TDH) & Power Sizing Calculator governing plant layout conforming to Hydraulic Institute Pump Handbook.

1. Engineering Principles & Mathematical Formulation

Determines Total Dynamic Head (TDH) including static elevation, friction, minor fitting losses, and required pump motor kilowatt/horsepower.

This calculation engine executes rigorous mass-balance and hydraulic equations. Every parameter is cross-checked to ensure zero rounding drift across bidirectional US Imperial and SI Metric unit systems.

2. Governing Standards & Authoritative Citations

"Design calculations for municipal and industrial water infrastructure must strictly adhere to recognized empirical standards to ensure hydraulic stability, structural integrity, and environmental compliance."
— Hydraulic Institute Pump Handbook, American Water Works Association (AWWA) & U.S. Environmental Protection Agency (EPA Manual 832-B-99-002)

Primary benchmark citations include Crane Technical Paper No. 410, ASME Section VIII, and Metcalf & Eddy Wastewater Engineering.

3. Required Input Parameters & Variables

Symbol: Q

Design Flow Rate (Q)

Default: 500 (GPM)
Symbol: H_s

Static Head / Elevation Lift (Hs)

Default: 60 (ft)
Symbol: H_f

Total Friction Head Loss (Hf)

Default: 25 (ft)
Symbol: P_out

Required Operating Pressure at Outlet

Default: 20 (PSI)
Symbol: η_p

Pump Efficiency (η_p)

Default: 75 (%)
Symbol: η_m

Motor Efficiency (η_m)

Default: 90 (%)
Symbol: SG

Fluid Specific Gravity (SG)

Default: 1 (dimensionless)

4. Professional Engineer (PE) Submittal Workflow

WaterCalcStudio Pro generates timestamped PDF calculation reports complete with formula proofs, intermediate variable breakdowns, and signature review blocks suitable for regulatory submittals.