Mark Twain once said, “In the Spring, I have counted 136 different kinds of weather inside of 24 hours.” That was certainly true in the last week. In just a few days in the upper Midwest, great frozen piles of snow and ice melted to reveal slowing awakening grasses and a green and brown world. Though we can certainly still get a late winter snowstorm, the worst of it is definitely over, and I — for one — am thrilled.

I realize, of course, that while the rising temperatures mean melting snow in Wisconsin, such is not the case everywhere. In more temperate parts of the country, for instance, the first summer-like days portend a long, hot summer — and increased demand on your industrial cooling system. Are you ready? The hot weather is coming whether you are or not. Feature articles in this issue of Process Cooling should help.

First up to help you handle the challenges to process (and comfort) cooling equipment is “6 Ways HVLS Fans Improve Productivity” by Katheran Wasson of Big Ass Fans. A ceiling-mounted, high volume, low speed fan can perform several functions in your plant that help drive off environmental effects on your process equipment while improving worker comfort. Learn how HVLS fans provide cooling breezes, help prevent heat stratification, reduce energy costs, minimize the risk of condensation, help improve air quality and can boost employee morale. (Also while you’re thinking fans, check out our brief product roundup on page 36.)

Elsewhere in this issue, controlling process cooling equipment is the focus. In our cover story, Nikki Bishop and Jason Sprayberry of Emerson Process Management explain how “WirelessHART Automates Cooling Tower Operations.” Automated control offers several benefits, they say, including tight control of cooling tower operation, the ability to maintain the asset yet prevent overmaintenance, avoid equipment failures and thus limiting downtime in each cooling tower section.

“The Future of Temperature Controls” looks at how temperature controls change with the times. Already, innovations such as PID and PLC control and remote monitoring via the Internet are givens for many controls applications. What’s next for process temperature control? Will they become easier to set up and use? Perform more tasks than just temperature control? Carry out background tasks that assist in maintenance? Jim Schroeder, Sr. of Seagate Control Systems offers his insights.


Linda Becker, Associate Publisher and Editor,