Pump Head Calculation Excel ~repack~ Today

This article will guide you through the theory of pump head, the essential formulas, and—most importantly—how to build a from scratch.

But building your own ensures you understand every assumption.

= same × discharge length + fitting losses pump head calculation excel

Why use "head" instead of pressure? Because head is independent of fluid density. A pump that generates 20 meters of head will lift water to 20m, but also lift oil (lighter) or brine (heavier) to the same 20m, though the pressure at the bottom will differ.

Start by creating a dedicated "Input" section with distinct cell formatting (e.g., Blue fonts for inputs) so users know where to type. This article will guide you through the theory

– use the Swamee-Jain explicit formula (valid for 10^-6 < ε/D < 10^-2):

Pump water from Tank A (atmospheric) to Tank B (open), 25m higher. Flow = 150 m³/hr. Pipe = 200mm ID steel, total length = 300m. Fittings: 4 elbows, 2 gate valves, 1 check valve. Because head is independent of fluid density

| Mistake | Consequence | Solution | |---------|-------------|----------| | Using wrong unit conversion (mm to m) | 1000x error | Use CONVERT function or check cell formulas with F2 | | Ignoring minor losses | 5-15% under-sizing | Include fitting K-values from Crane TP-410 | | Forgetting viscosity effect | Overestimate head for oils | Use Moody chart or viscosity correction | | Using Hazen-Williams for all fluids | Inaccurate for large diameters | Darcy-Weisbach is universal | | Not locking cell references ( $B$4 ) | Drag formulas break | Use F4 to toggle absolute/relative |

For an actionable spreadsheet, organize your columns as follows: Required Inputs Output Formulas System Info Flow Rate ( ), Pipe Diameter ( ), Fluid Density ( ), Velocity ( Static Head Suction elevation, Discharge elevation Pipe Friction Pipe length, Material (Roughness), Viscosity Friction Factor ( ), Head Loss ( Quantity of elbows, valves, tees Final Result Safety Factor (typically 10-20%) Required TDH Professional Tools & Resources Calculation of Pump Sizing - ExcelCalcs