Environmentally friendly variable frequency

Should variable frequency drive be a universal practice?

Variable frequency drive (VFD) modifications to industrial motors are described analytically. Individual micro-scale carbon and cost savings are combined for input-output analysis. Leveraging VFD control as a universal practice would result in nearly 5 million avoided tonnes of CO 2.

What is variable frequency drive (VFD) control?

Motor systems are ubiquitous throughout the industrial sector, particularly in fluids applications. It is well known that the efficiency of these operations can be greatly enhanced using variable frequency drive (VFD) controls, but adoption of the technology is far from universal.

Should small and mid-size manufacturers adopt variable frequency drive?

Adoption of variable frequency drive (VFD) by small and mid-size manufacturers has been increased alongside the development of the Department of Energy's policy on industrial energy efficiency and smart manufacturing strategy. VFDs provide energy cost savings, and the implementation leads to benefits outside of the primary facility.

Do VFDs create economic opportunities in an industrial environment?

Case studies are presented that exemplify the type of opportunities that VFDs produce in an industrial environment along with energy, cost, and emissions savings to make an economic case at the micro- (or facility) level. This procedure is well-known to energy auditors, who work to create value for individual client facilities.

How much rpm can a VFD reduce?

Since the rotational speed of the pump determines the volume flow rate; the motor speed (rpm) could be reduced by 10–30% depending on the month after installing a VFD. From pump affinity laws (Eq. (2)) it is determined that a 30% reduction in speed corresponds to a 59% reduction in power.