VFDs, harmonics drive power quality debate

This month's panel of experts discusses how to mitigate harmonic effects, passive and active filters, and technological advances with these systems and VFDs.

A trip to a greener Windy City leads through the city’s alleyways

The city of Chicago and the Chicago Dept. of Transportation (CDOT) will attempt to green an area of the city longer than the distance from Chicago to Las Vegas.

Fresh air for asthma sufferers

In August, the National Asthma Education and Prevention Program (NAEPP) issued the first comprehensive update in a decade to the “Guidelines for the Diagnosis and Management of Asthma.” This month’s panel discusses the role of building system engineers in reducing and controlling asthma.