A generic definition of a pump is
"A machine or device for raising, compressing, or transferring fluids."
In practice - it is common to differentiate between
as summarized below:
- A pump is a machine for raising a liquid - a relatively incompressible fluid - to a higher level of pressure or head
- A compressor is a machine for raising a gas - a compressible fluid - to a higher level of pressure
- A blower is a machine for moving volumes of a gas with moderate increase of pressure
- A fan moves large amounts of gas with low increase in pressure
The study of fluids - liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time.
Air, LNG, LPG and other common gas properties, pipeline capacities, sizing of relief valves.
Piping systems and pumps - centrifugal pumps, displacement pumps - cavitation, viscosity, head and pressure, power consumption and more.
Systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more.
Fan classification established by AMCA.
Centrifugal pumps vs. positive displacement pumps.
Calculate specific work done by pumps, fans, compressors or turbines.
Reciprocating, rotary screw and rotary centrifugal air compressors.
Axial and propeller fans, centrifugal (radial) fans, mixed flow fans and cross flow fans.
Centrifugal, axial and propeller fans and their capacity ranges.