Energy Efficiency tip of the day (Over-sized pump Problem)

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Problem

If pumps are sized to handle peak flow or worst-case conditions, they could operate at substantially less efficient levels for long periods. Oversized pumps in applications like these tend to waste energy, and they require frequent maintenance because they operate far from their best efficiency points.

 

Proposed Solutions

 

  1. Pump downsizing
  2. Use variable speed drive: If the system has low static head requirements check the possibility/feasibility of installing variable speed control.
  3. Use parallel arrangements
    1. Pony pump arrangement (small pump and large pump) :When you have intermittent pump operation, or excessive flow noise, cavitation, and piping vibrations that disappear during heavy demand periods.
    2. Use several smaller parallel pumps

pumping_system_tip-1

Tip Map PDF file link https://www.dropbox.com/s/xk0zeb49kqxo774/Pumping_system_Tips_%28over-sizing_problem%29.pdf?dl=0

Magdy Aly

Energy manager, Energy efficiency consultant Passionate to help others to save Energy and Environment.

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