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It shouldn’t come as a surprise that pumps can consume a lot of energy. As the cost of energy rises, many manufacturers are looking for better ways to use and conserve energy, specifically when it comes to pumps. Fortunately, pumps hold high potential for energy savings, and one way to save is by implementing variable frequency drives.
A basic variable frequency drive, or VFD, is an adjustable speed drive used to control motor speed and torque. They automatically right-size pumps, controlling pump speed to match process flow and demand at all times. A VFD’s ability to control speed and behavior of a pump not only makes them ideal for energy savings, but also helps to protect pumps from damaging themselves. More intelligent VFDs have additional benefits that allow for even more control over a pump, or even multiple pumps.
Here are some signs that it may be time to look into a basic, or more intelligent, variable frequency drive:
More advanced VFDs, sometimes called Intelligent Flow Control Technology, take the VFD concept to the next level, reducing energy and maintenance costs in even more ways. If your system has these conditions, you may want to consider a more advanced VFD.
If reducing energy and maintenance cost has become a priority in your facility, implementing basic or advanced VFDs may be a great place to start. Local paper mill, Appleton Coated in Combined Locks, Wisconsin, along with the help of Crane Engineering and ITT ProServices, took a very close look at their pump energy usage and managed to save $102,000/year by implementing variable frequency drives in five applications. To read more about their savings, check out the case study on the ITT ProServices website.
Got an oversized, or troublesome pump? Ask us about it! We gladly provide technical assistance to companies in Wisconsin and Upper Michigan.