A Few Ways to Refine the Energy Efficiency of your Pump!

Waste Water Pumps

We all know about the concerns governing the growth of the environment in the wrong direction, as well as, the substantial increase in the need to reduce costs. 

With all of this, energy efficiency has become an imperative topic for the pump industry to discuss. 

In recent times, there have been reports about pumping systems all over accounting for nearly 20% of the entire world’s electrical energy demand. All of this just proves that it is becoming severely important to improve the energy efficiency of the pumping systems that are being used by us.

This blog is going to cover a few ways in which one can make energy savings on their pumping systems. 

Check out the following: 

  1. Avoiding oversizing 

When specifying a pump, it is pretty common for engineers to be conservative. They often include a margin of safety, in terms of the duty of the supplied pump, as compared to what the application needs. It is a well-proven fact that rotodynamic pumps like centrifugal pumps are typically oversized by at least 20-30%. In this way, it requires more power from the motor. An oversized pump can easily result in a lot of absolutely unnecessary energy consumption.

Simply by making the selection of a pump that will be operating very close to its Best Efficiency Point, there can be a major reduction in the use of energy.

  1. Trimming of the impeller

In case of a pump being oversized, one of the most cost-effective ways of reducing the pressure as well as flow produced is trimming the impeller. While it is much more energy efficient to trim the impeller as compared to using a throttling valve for achieving the needed duty, when an impeller is shaved, the clearances between the impeller and the casing get huger. This in turn makes it less efficient than a full-sized impeller. This is why often the preferred choice becomes variable speed drives when it comes to energy efficiency.

  1. Parallel pumping systems

For a system with different duty requirements, an alternative energy-efficient solution as compared to VFDs is to use multiple pumps. At a time when the needs of the “worst-case” conditions are clearly at a higher level than normal operating conditions, a single pump could spend a lot of time operating far away from its BEP. Another idea is the installation of a smaller second pump which is specified to meet the average system demand. This would relieve the larger pump from operating far below its optimum capacity.

There are many more tips on how you can increase the energy efficiency of your submersible wastewater pump! For the same, you can reach out to us at  https://www.darlingpumps.in/ or contact us at 91 99819 92833.