Featured Stories

Are We Unknowingly Wrong-Sizing Ducts?

A small team led by an award-winning Florida engineer decided to test conventional wisdom about pressure loss, both in a straight run and in comparing supply and exhaust scenarios. Early returns suggest the data may be flowing in an unexpected fashion.
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Wireless Pneumatic Thermostats Deliver Smoother Upgrade

Follow the engineer at a large hospital complex in Phoenix as he pursues less disruptive and less expensive ways to boost BAS performance and budget wellness, all in the name of patient comfort.
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Energy-Efficient Dehumidification In Health Care Facilities

With a wide spectrum of specialized spaces and particular outside air requirements, a hospital’s en-ergy-efficiency efforts start when arranging which areas go where. From there, the author leaves no technology unturned — chilled beams, geothermal, DOAS, VRF, etc. — in evaluating which ap-proaches might best contribute proper ventilation and humidity in which environments, with an eye on minimizing facility energy consumption.
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The Importance Of Facility Air Balance

Brush up on the environmental factors that can throw things out of, well, balance, and note how space pressure problems can create assorted complications.
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Commercial vs. Industrial Automation In Data Centers

Since data centers are atypical in several aspects, unique BMS approaches are required to optimize their control, monitoring, and operation. Learn why it is important to know the detailed pros and cons between commercial and industrial automation system hardware, software, and instrumentation as you consider the facility’s automation design and associated costs.
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Right Steps For Retrofits

Achieving deep energy savings is especially challenging when you’re faced with an existing structure with poor orientation, historic preservation requirements, and little space for renewables. The Byron Rogers Federal Office Building’s retrofit is scheduled to be completed in 2013; the post-renovation building is projected to consume less than half the energy it did before.
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A New Generation Of Smoke Detectors

Here, we depart from our occasional focus on controlling smoke, yielding the floor to a life safety veteran weighing in about a new development for detecting it. Some historical context around detector types and testing methods paves the way for an explanation of why the new approach may become a welcome option for many applications … if it catches on.
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Geothermal Heating And Cooling Options

After reviewing basic design options, the next steps for potential geothermal designers are to challenge the common concerns and myths, study how different choices have different cost impacts, and be aware of the ways a good design can yield bad performance if the installation isn’t done well. Add the habit of turning a retrofit’s circumstances to your advantage, and this underground approach can rise above client expectations in short order.


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Up The Commercial Kitchen Ventilation Hood Type I Stack: No Problems Or Complaints

Leakage caused by modern cleaning techniques, evolving codes, increased airflow requirements ... kitchen ventilation design has become more complicated than the old sizing and design challenges. Of course, they’re still around, too. Grease is the word, so review these tips to keep it from popping up in the wrong places.
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Motors & Drives Rebate Update

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.
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ES Gallery: Snapshots & Systems

Check out highlights from projects featured in our magazine this year!
11/20/14 2:00 pm CDT

Key Issues in Selecting Emergency Back-up Generators

Join us for this webinar on key issues for selecting back-up generators, as well as the related critical components in the power chain of emergency power systems.

Engineered Systems Magazine

ES October 2014 cover

2014 October

Check out the October 2014 issue of Engineered Systems, with features on economizers, pump operations, and much more!

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Tomorrow's Environment Podcast

This series from longtime columnist and chronic forward-thinker Howard McKew covers a lot of ground -- from retrocommissioning to systems training, on toward checklists for drawings and tips for meeting minutes. Click HERE to be taken to the podcast page!

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