Booster Pump Head Calculation Xls < TESTED × SUMMARY >

Calculating the total head for a booster pump ensures your system provides enough pressure to move water to the highest or furthest point in a building while overcoming internal resistance

• An engineer built a simple XLS with Darcy-Weisbach.
• At 6 m³/hr flow, correct TDH was 32 m (3.2 bar).
• Existing pump delivered 55 m (5.5 bar) → throttling valve wasted 2.3 bar.
• Replaced pump with 5.5 kW unit (proper impeller trim). Annual energy saving: $4,800. Payback: 3 months.

Step 3: Friction Loss Calculation (At 10 m³/hr)

Suppose we want to calculate the booster pump head for a water supply system with the following inputs: booster pump head calculation xls

(Kinetic energy of the fluid, often negligible in domestic systems). 1. Determine Static Head ( cap H sub s Calculating the total head for a booster pump

10.44 center dot cap L center dot open paren the fraction with numerator cap Q and denominator cap C end-fraction close paren to the 1.85 power center dot cap D to the negative 4.8655 power is length, is pipe roughness, and is diameter). 4. Solve for Total Dynamic Head (TDH) An engineer built a simple XLS with Darcy-Weisbach

Example Calculation

• Flow rate (design max, min, and average)
• Suction and discharge pipe diameters, lengths, materials
• Number and type of fittings, valves, elbows
• Elevation difference (static head)
• Suction tank minimum water level
• Discharge pressure requirement (e.g., sprinkler, faucet)
• Fluid properties (water is default, chemicals need adjustment)

Suggested pump nominally pick next standard pump with duty point near (Q, TDH_design) — list required pump curve lookup (manual step).