Featured Stories

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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Improving Data Centers With Aisle Containment

In which the author lays out the path from earlier data center design to a more recently discovered airflow challenge. Read on for his insights on how to keep positive differential pressure from being a negative for your facility’s energy budget.
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Adiabatic Cooling Of Data Centers

Data center HVAC has come a long way since ’80s-era strategies and even since turn-of-the-century room parameters. Consider that evolution, and how options like economizers and evaporative cooling may be more appealing in light of wider environmental envelopes.
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Designing the Learning Space of the Future — An Engineer's Perspective

The students have changed, and the way spaces get used is changing as well. How do we need think about educational environments to foster better thinking inside them?
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Sustainable Combined On-Site Trigeneration And TES Systems

The author's firm recently explored three options for use in buildings that are “user-friendly” when dealing with the highly variable load demands of multi-tenant occupancies, often requiring simultaneous space heating and cooling requirements. Read on to see what they found out about performance and life-cycle cost for their client.
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Air Filtration in Health Care Facilities

Just what the doctor ordered: specifics on pre-filters, after-filters, AHU tips, and more to meet critical IAQ goals and prevent that ventilation system from operating in a “fog.”
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HVAC Security Emergencies: No Terrorist Required

Plenty of potential ventilation crises await many otherwise unassuming buildings, thanks to nothing more sinister than truck accidents, emissions from nearby buildings, or unavoidable natural disasters. However, by pairing a clear basis of design with HVAC response strategies, building owners can apply some forethought and preparation to avoid worst-case consequences. Start by asking the right questions about your facility.
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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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