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Industrial Help:
Reduce Pumping Engery Costs

By Using the Optimum Pipe Size

Save Energy -- Evalute several pipe sizes on a lowest life-cycle cost basis:

According to a U.S. Department of Energy study, about 16% of a facility's electricity costs result from its pumping systems. The power consumed to overcome static head can not be reduced, but savings can be achieved by reducing the power required to overcome piping system friction.

One way to reduce friction in piping systems is to use plastic or epoxy-coated steel pipes. This can achieve a greater than 40% reduction in friction loses. Another way to reduce pumping costs is to increase the pipe size.

The power required to overcome friction is related to the rate of flow, the pipe diameter and the overall length of the pipe. The following will calculate the energy costs based on these three criteria.

The Friction Factor is based on the pipe roughness, pipe diameter and the Reynolds number (which is based on characteristics such as fluid density, fluid viscosity and fluid velocity). The Friction Factor can be obtained from engineering handbooks and is typically in the range of 0.015 to 0.0225.

Use the following calculator to compare the energy cost of various pipe diameters.

Estimate Pumping Costs Due To Friction
(Please fill out the complete form. The values you enter will be shown in parenthesis.)

Friction Factor: (0)

Flow (gpm): (0)

Pipe Length (feet): (0)

Pipe Inner Diameter (inches): (0)

Combined Pump/Motor Effeciency (%): (0)

Number of operating hours per year: (0)

Average cost per kilowatt-hour for electricity: (0)

Annual Pumping Costs Due to Friction: No value calculated - valid information must be entered above.


FREE Pipe Marking Guide - Your choice of two pipe labeling guides. The ASME A13.1 standard for labeling pipes or IIAR standards for labeling ammonia refrigeration pipes.

Other Calculators:
Reduce energy costs by using energy efficient motors.
Determine your costs for compressed air energy



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