Featured Stories

Sustainable Schools: Teaching By Example

See how Charlotte-Mecklenburg Schools weathered an economic downturn through efficiency, managing to use less energy while adding facilities.
By Bryan Steiner
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Providing high-quality education for our nation’s children in grades K-12 has never been more important than it is today. The world is changing fast, and we need to provide an educational system that prepares them for this fast paced world in which we live.
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Ventilation To Improve IAQ In Schools

The author heads to the blackboard to break down fundamental outside air and sensor strategies (and how they can work together).
By Paul Schlueter
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Providing high-quality education for our nation’s children in grades K-12 has never been more important than it is today. The world is changing quickly, and we need to provide an educational system that prepares them for this fast paced world in which we live.
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Corps Community Revival: New Chicago Community Center Features Diverse MEP Design

Practical MEP design — comprising modular boilers, waste heat recovery, remote monitoring, designing around local restrictions, and much more — delivers flexibility and sustainability to Chicago’s largest community center.
By Tyler Jensen, p.e., LEED® AP and Andrew Silverstein, P.E., CEM, HBDP, LEED AP
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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.
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HVAC on the Aisles

By ES Staff
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Once again, we bring you an advance peek of what will be on the floor when AHR Expo attendees arrive in Dallas late this month. Attendees and non-attendees alike can also browse a treasure trove of info at www.ahrexpo.com. But for now, enjoy a snapshot drawn straight from the exhibitors themselves.


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Radiant Success: Designing For Energy-Efficient Comfort In California

By Peter Simmonds, Ph.D.
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Managing solar loads and incorporating radiant ceilings were just part of the plan for this five-level mixed-use building. Chilled beams and chiller plant decisions joined ventilation strategy to serve both occupants and LEED ambitions.
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Retrofitting Primary Chilled Water Pumps With VFDs

By Eric O'Neill
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Take a large hospital, subtract unexamined rules of thumb, add meaningful incremental improvements like VFD’s and a controls upgrade, and what do you get? Smarter engineering via improved performance for both the pumps and the chillers. But it all starts with one little question.
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Humidification: Options, Amines, and the Impacts of ASHRAE Standards 62.1 And 170

By Jeffrey Boldt, P.E., LEED® AP, HBDP and Paul Hansen, P.E.
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Whether your system uses boiler steam or another method, the authors walk you through the pros and cons of various sytems, the evolving standard landscape regarding those corrosion-fighting amines, and some energy reduction ideas.
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How The Culture Of Inefficiency Is Outfoxing LEED®, ASHRAE, And Efficiency Programs

By Peter Kleinhenz, MS, P.E., Greg Raffio, MS, P.E., Charlie Schreier, MS, P.E., John Seryak, and Franc Sever, MS
3 Comments
How many energy-efficient or certified buildings are not living up to the label? Very, very many, if this Ohio commissioning/auditing firm’s experience is close to typical. They report on common weaknesses in efficiency strategies and on real-life patterns of upgrades gone wrong across an array of equipment types. While flaws in well-intentioned processes remain, a more careful investment of human energy can still yield the desired reduction in building energy.
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Modular Central Utility Plants: A Different Approach

By Garold Hamilton P.E. LEED®
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Done right, going modular can be a good fit for hospitals in search of efficiency. From design to specification to pre-shipment, the process demands engineering attention to the right details at the right times. Get a designer’s notes from experience and learn how to take advantage of what a modular central plant can offer.
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Pumping and Flow Controls in Geothermal Heat Pump Systems

By Stephen Hamstra P.E., ASHRAE HBDP LEED AP,
One Comment
What are the key technical challenges and design options for optimizing a geothermal heat pump design? Review the pros and cons involved with centralized or distributed pumping, with hybrid or decoupled systems, and with the controls that can guide them.
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Check out highlights from projects featured in our magazine this year!
9/25/14 2:00 pm EDT

Test Anxiety? Learn How and When to Test Your Standby Generator

This webinar will discuss generator reliability, testing, and troubleshooting from a practical perspective and make recommendations for a comprehensive inspection and testing program.

Engineered Systems Magazine

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2014 September

Check out the September 2014 issue of Engineered Systems, with features on radiant panels, refrigerant flow systems, and much more!

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