Potência bomba

The pump power calculator determines the required power to operate a hydraulic pump based on parameters like flow rate, manometric height, and efficiency. The formula used is P = γ·Q·H/η, where γ is the fluid's specific weight (usually water), Q is the flow rate in m³/h, H is the manometric height in meters, and η is the pump efficiency (in decimal). This calculation is crucial for sizing pumping systems in constructions, industries, and irrigation.

Manometric height (H) represents the sum of geometric heights (vertical) and friction losses in pipes. Efficiency (η) indicates the percentage of electrical energy converted into mechanical work by the pump. Typical η values range from 0.5 to 0.85, depending on the model and condition. For correct use, units must be standardized: Q in m³/s, H in meters, and γ in kg/m³.

Common applications include artesian well pumps, building re-pumping systems, and agricultural irrigation. It is important to consider a safety factor, usually between 1.25 and 1.5, to ensure the pump operates below maximum capacity. Measures like regular maintenance and using pumps with appropriate efficiency help reduce energy consumption and operational costs.

Common errors include choosing inadequate Q or H, using theoretical efficiency without considering real-world pump wear, or confusing manometric height with geometric height. Always validate data with real hydraulic system measurements, especially in existing installations. The calculated power should be compared with the pump's motor technical specifications to avoid overloading.