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Bridging Schools And Eras with HVAC

With literal and figurative tight spaces handled, now new boilers, hydronics, pumping systems, and DDC all work together to impress and serve.

February 27, 2013

By Paul Johnson P.E., CSI, LEED® AP BD+C

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In today’s world, so-called “high-performance, sustainable” facilities are a dime a dozen. But many of these buildings rely on overly complex mechanical systems to carry out their mission.

Good Practices For Mechanical Repair Of Electric Motors

January 2, 2013

By Tom Bishop, P.E.

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Motor problem documentation, grease compatability, fits for bearings … these are just three aspects covered in ANSI/EASA AR100. Whether you maintain your own motors or simply own them and require proper maintenance, understanding the concerns, resources, and recommendations of AR100 will encourage proper repairs and longer service life.

Critical Care: IAQ For Isolation

January 2, 2013

By John Bilotta, P.E., LEED® AP and Thomas J. Thomas Ford, LEED AP

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There’s nothing simple about the design, construction, and maintenance of a hospital’s protective environment and airborne infection isolation spaces. However, if you pay careful attention to recommended ventilation and filtration strategies for the rooms and adjacent areas, you can handle the pressure (so to speak) and deliver a healing environment.

Motors & Drives Rebate Update

August 27, 2012

By Compiled By ES' Staff

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How often do you get paid to save money through improved system performance? Utilities have their own reasons for seeing you lower your bills, so don’t get started on that next retrofit until you’re sure your organization isn’t leaving money on the table.

Motors For Use With VFDs

January 9, 2012

By Steven G. Liescheidt, P.E., CSI-CCS, CCPR

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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.

Calculating Life-Cycle Cost

Detailed calculations can unearth hidden savings.

September 6, 2011

By Paul Avery

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Whether at work or in our personal lives, we all try to be smart shoppers. We’ll go that extra mile to save a few percent on upfront purchase costs but every so often miss the big picture by not taking total cost of ownership (TCO) into account.

Case In Point

Financial exchange trades up to modular fan system

September 6, 2011

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Located in this city’s famous Loop commercial center, the 600-foot-tall Chicago Board of Trade Building (CBOT) houses the world’s oldest futures and options exchange. Until recently, the building also housed a pair of aging built-up systems that were beginning to worry management.

Building Automation: Part 1: Proper Selection Of VFDS And BAS

August 1, 2011

By Paul Ehrlich, P.E. and Ira Goldschmidt P.E.

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Let drives steer you toward better performance, with these caveats.

Case In Point

Energy savings give bank a higher rate of return

May 1, 2011

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An energy analysis paid for itself at this Illinois bank by identifying energy savings opportunities. When Jason Vogelbaugh, director of Energy Solutions at Alpha Controls & Services, (Schneider Electric’s Rockford,

Welcome to Boston!

March 1, 2011

By Peter Fairbanks

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Smaller in size but big on style and service, this Boston hotel looked to compete with bigger brands by cutting costs behind the scenes. A chiller overhaul led the list of improvements, which included lighting and controls retrofits, and allowing rooms to recirculate air when unoccupied.

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3/20/13 2:00 pm EST

Risk and Reward within Reason – Identifying Data Center Best Practices via Lessons Learned and CFD Analysis

On-Demand The presentation will be a discussion of current and emerging mechanical best practices informed by real world experience and project based analysis.

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