Pump & Hydraulic Performance Calculation Excel Template
The Pump & Hydraulic Performance Calculation Excel Template is a standardized spreadsheet tool designed to compute and analyze key hydraulic performance parameters of centrifugal and positive displacement pumps, including head, flow rate, efficiency, power consumption, and Net Positive Suction Head (NPSH). It integrates engineering equations, unit conversion logic, and data validation to support pump selection, system design verification, and energy optimization. The template typically supports both SI and Imperial units and enables parametric 'what-if' analysis for operational scenarios.
📖 Overview
📑 Key Components
🎯 Applications
- ✓ Pump selection and sizing for HVAC and water supply systems
- ✓ Hydraulic system commissioning and performance verification
- ✓ Energy audit and retrofit analysis for pumping stations
📐 Key Formulas
Total Dynamic Head (TDH)
TDH = (P_discharge - P_suction)/ρg + (v_discharge² - v_suction²)/(2g) + (z_discharge - z_suction) + h_f
Calculates the total energy imparted by the pump per unit weight of fluid, accounting for pressure, velocity, elevation, and friction losses.
Brake Horsepower (BHP)
BHP = (Q × H × ρ × g) / (η × 746)
Determines the mechanical power input required at the pump shaft (in horsepower) for given flow Q (m³/s), head H (m), fluid density ρ (kg/m³), gravitational acceleration g, and pump efficiency η.
Net Positive Suction Head Available (NPSHa)
NPSHa = (P_atm - P_vap)/ρg + z_suction - h_f_suction
Computes the absolute pressure margin above vapor pressure at the pump suction flange, critical for avoiding cavitation.
🔗 Related Concepts
📚 References
📐 Prerequisites
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➡️ Next Step
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🔗 Engineering Applications
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