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 ...

In a previous article A New Age In North American Hydronics I promised that we would venture into the word of light commercial pump sizing using variable speed pumps. How many times have we been ...

In a previous article I promised that we would venture into the word of light commercial pump sizing using variable speed pumps (July, p. 36). How many times have we been called upon to work on a ...

Variable speed drives are transforming modern irrigation by shifting control from valves to pump speed. Instead of running motors at full capacity and throttling flow, the drives adjust motor speed to ...

A failing pool pump isn’t just noisy — it can quietly damage your entire system. In this video, I unbox and install a new Black & Decker variable speed pump and show what’s involved in upgrading ...

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 ...

There’s a debate among commercial and industrial hydronic system designers: how best to refine and enhance pumping and system efficiency to precisely match output to load (need). Decades ago, ...

David Perri, Director Corporate Engineering, Barry Durham,Corporate Environmental Manager, Bohdan Dackow, Corporate I&C Engineer, USPowerGen. The New York State Department of Environmental ...