Pumps

The differences between dynamic, absolute, and kinematic viscosity - a fluids resistance to flow - with definitions, unit conversions, and practical applications for engineers and scientists.

Turbo machines affinity laws can be used to calculate volume capacity, head or power consumption in centrifugal pumps when changing speed or wheel diameters.

Securing a system and achieve equal wear by alternating pumps in parallel.

BEP is where the pump is most efficient.

Recommended max suction flow velocity when pumping boiling fluids.

Recommended max flow velocity on the delivery (pressure) side when pumping boiling liquids.

Cavitation occurs in fluid flow systems where the local static pressures are below the fluids vapor pressure.

International centrifugal pump design and dimension standards.

An introduction to Centrifugal Pumps.

Modulating pumps to adapt capacities to variable process demands.

Hydrodynamic losses through pumps depends on fluid viscosities.

Minimum continuous flow to prevent flashing in centrifugal pumps.

Centrifugal pumps and maximum shut-off head.

The characteristic speed torque curves for centrifugal pumps.

The characteristics of stable and unstable flow.

High temperatures and danger of impeller cavitation is the major challenge for condensate pumping in steam systems.

The overall pump and fan efficiency is the ratio power gained by the fluid to the shaft power supplied.

Recommended max. flow velocities on the delivery side when pumping light oils.

Recommended max. suction flow velocities when pumping light oils.

Vapor and saturation pressure for some common liquids.

The Mechanical Energy Equation compared to the Extended Bernoulli Equation.

Introduction tutorial to positive displacement pumps basic operating principles.

Calculate the power gained by fluid from an operating pump or fan.

Pressure vs. head units - like lb/in², atm, inches mercury, bars, Pa and more.

Convert between pressure units like Pa,  bar, atmosphere, pound square feet, psi and more.

Calculate temperature rise vs. volume flow in pumps.

Converting head (ft or m) to pressure (psi or bar, kg/cm2) and vice versa.

Calculate pumps hydraulic and shaft power.

Calculate the energy cost of pumping water.

Horsepower required to pump water.

Centrifugal pumps vs. positive displacement pumps.

An introduction to pumps and the Net Positive Suction Head (NPSH).

Adding head and flowrate for pumps arranged in parallel vs. serial.

Characterizing of impeller types in pumps in a unique and coherent manner.

The suction head of a water pump is affected by its operating altitude.

Suction Specific Speed can be used to determine stable and reliable operations for pumps with max efficiency without cavitation.

The energy equation can be used to calculate the head rise in pumps and fans.

The difference between pumps, compressors, blowers and fans.

British Horse Power as used for pumps, fans and turbines - and how to convert to other units.

Static pressure vs. pressure head in fluids.

Utilize the system curve and the pump performance curve to select the proper pump for a particular application.

Calculate specific work done by pumps, fans, compressors or turbines.

Convert between viscosity units like Centiposes, milliPascal, CentiStokes and SSU.

Recommended max. flow velocities on delivery sides of pumps in viscous systems.

Recommended max. pump suction flow velocity for viscous fluids.

Convert between volume flow units like gpm, liter/sec, cfm, m³/h.

Recommended max. water flow velocities on suction sides of pumps.

Recommended maximum flow velocities in water systems on the delivery side of the pump.

Water pump calculations.