Best Efficiency Point - BEP

mobile - visible on handheld devices - alternatively go to www.engineeringtoolbox.com!

Engineering ToolBox > Best Efficiency Point - BEP

Maximum designed pump efficiency

A pump does not completely convert the kinetic to pressure energy. Some of the energy is always lost internal and external in the pump.

Internal losses

hydraulic losses - disk friction in the impeller, loss due to rapid change in direction an velocities through the pump
volumetric losses - internal recirculation at wear rings and bushes

External losses

mechanical losses - friction in seals and bearings

pump efficiency bep

The efficiency of the pump at the designed point is normally maximum and is called the

Best Efficiency Point - BEP

It is possible to operate the pump at other points than BEP, but the efficiency of the pump will always be lower than BEP.

Related Topics

Engineering Toolbox >

Pumps Piping systems and pumps - centrifugal pumps, displacement pumps - cavitation, viscosity, head and pressure, power consumption and more

Related Documents

Centrifugal Pumps An introduction to Centrifugal Pumps
Discharge Regulation of Centrifugal Pumps Adapting pump capacities to process demand
Volume Flow and Temperature Rise in Pumps Calculate temperature rise in pumps
Specific Speed - Pumps Specific speed may be determined independent of the pump size
Specific Suction Speed for Pumps Specific Suction Speed may be used to determine what general pump design to use for maximum efficiency
Centrifugal Pumps and Viscosity When a liquid flow through a pump, hydrodynamic losses depends on fluid viscosity

.