Featured Stories

Innovation in Renovation: A Hunt for Gold

By Zuhair Hasan P.E., LEED
2 Comments
What does a full-scale modernization on a 90-yr-old federal building and courthouse look like when it aims for federal energy goals and LEED status? Chiller plant and hot water/boiler overhauls are just the start. Aggressive lighting and water treatment/conservation strategies also contribute to the GSA’s effort to throw the book at this Alabama retrofit.
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Modular Mechanical Seals Protect HVAC Piping & Duct Systems

By James E. Delahoyde
No Comments
How can you really, really seal any gap between your pipe and the rest of the wall that just had a hole put in it to accommodate the pipe’s path? That’s a question we haven’t asked in these pages before. Learn about the available technology, bolt/nut combinations, and more to maintain a safe long-term relationship between these elements of your building systems and your building.
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Gateway City Apartment Builiding Goes Single-Pipe

By Dan Vastyan
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This large complex is welcoming a host of new arrivals, from new boilers and chillers to an overhaul of its hydronic strategy. Avoiding a whole lot of drilling was one benefit of their new design choice. Balancing first cost, maintenance costs, and the system itself were additional positives for keeping all 225 units comfortable and affordable.
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Iowa State Laboratory Humidification Yields Results

By Joe Zwers
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Effective building envelope and air handling designs took comfort most of the way from theory to reality in ISU’s Hach Hall. An existing in-house deionized water supply and a new fogging system finished the task and saved an estimated 22% in humidification costs.
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Floored!

By Compiled by ES Staff
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The activities around the Expo continue to increase, but the miles and miles of exhibit space still sits in the center of the action. Here’s our annual glimpse at what’s new from the companies who hope to draw you to their booths this month.
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JBA Consulting Engineers Embraces Technology To Power Growth

By Dwayne Miller
No Comments
Follow one firm’s path from committing to BIM to climbing a learning curve in using it to serve clients, and even on to taking an unusual step to fill what it sees as a need in the market.
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Cutting Costs vs. Creeping Copper: The Data Center Airside Economizer Conundrum

By Kevin Dickens, P.E.
No Comments
So Charles Dickens, Ferris Bueller, a chicken, and a pig walk into an HVAC article … and try to sort out proper use of outdoor air in data centers. As you might imagine, it’s not simple. But if you remember these three design absolutes and consider your client’s specific perspective, the resulting efficiencies might have you singing Wayne Newton at the prospect of repeat business.
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Third-Party TAB Consulting In Sync With Third-Party Commissioning – Its Time Has Come.

By Howard McKew, P.E., C.P.E.
No Comments
The people in the industry don’t necessarily make a loud argument for it, but the results often do. How to get this ball rolling, sell it, and see it through from design to occupancy? Look ahead by looking below.
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Commissioning Fire Alarm Systems

By Timothy Thatcher, P.E.
No Comments
This month, our life safety coverage arrives from the commissioning side. From design phase to tips on navigating a seemingly untenable number of observations, and on to post-testing tasks, here’s one consultant’s solid reference to keep you and your client from getting unnecessarily alarmed.
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Motors For Use With VFDs

By Steven G. Liescheidt, P.E., CSI-CCS, CCPR
No Comments
The questions can pile up quickly when it’s time to specify a motor to pair with a variable drive. The information available sometimes leaves one wondering just as much about the information that is unavailable. Will a decision hold up not only in the actual application but also possibly in court? Wade into compatibility, spec terms, partial loads, and more as we try to get this motor running.
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