Pump Type Follows:

Monday, December 1, 2008

Pumping Systems

Pumping systems account for nearly 20% of the world’s electrical energy demand and range from 25-50% of the energy usage in certain industrial plant operations (US DOE, 2004).

Pumps have two main purposes:
  • Transfer of liquid from one place to another place (e.g. water from an underground aquifer into a water storage tank)
  • Circulate liquid around a system (e.g. cooling water or lubricants through machines and equipment)

The main components of a pumping system are:

  • Pumps (different types of pumps are explained in previous section)
  • Prime movers: electric motors, diesel engines or air system
  • Piping, used to carry the fluid
  • Valves, used to control the flow in the system
  • Other fittings, controls and instrumentation
  • End-use equipment, which have different requirements (e.g. pressure, flow) and therefore determine the pumping system components and configuration.

Examples include heat exchangers, tanks and hydraulic machines. Electrical Energy Equipment: Pumps and Pumping Systems.

The pump and the prime mover are typically the most energy inefficient components.