An HVAC system’s energy efficiency is only as good as the engineering firm that monitors and upgrades it. Hemant Mehta’s WM Group must be doing something right because he and his team have been ...

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As the cost of components and pumps becomes more affordable, variable speed pumps are being used to increase the efficiency and reliability of water distribution systems in multi-story buildings.

LONG BEACH, Calif. - Pumps are responsible for a significant part of the world’s electrical energy consumption, but their impact can be by using variable-speed pump control, especially in hydronic ...

Variable speed pumps have been around for years. As I mentioned in last month’s article, I used the technology at my own home at the turn of the century. A control varied the speed of a pump in an ...

To investigate the performance of engine cooling water pump in automobile with variable rotating speed, experimental tests and numerical simulation are carried out on an engine cooling water pump ...