IAQ

Cutting Costs vs. Creeping Copper: The Data Center Airside Economizer Conundrum

By Kevin Dickens, P.E.
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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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Liquid Desiccant Dehumidification For Challenging Environments

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In our second look at liquid desiccants this year, a veteran industry author and consultant reviews the technology and its application to difficult loads and environments. Review his cost-benefit analysis, supplemented by brief case studies ranging from a nursing home and a clean room to food and candy processing and a warehouse.
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62.1 Too Complicated?

Alternative to ASHRAE Standard 62.1 ventilation rate procedure proposed

Public comment sought on a proposed additional default value for the IAQ standard.
By Robert Beverly
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Public comment sought on a proposed additional default value for the IAQ standard.
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Solving Indoor Airborne Disease Transmission Problems

By Steven Welty LEED® ap,
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The author describes how toilet flushes aerosolize germs sending them airborne to soar around and infect their next victim(s) because bathrooms are designed backwards. Learn novel ways to control and clean bathroom air to help control airborne disease transmission problems. So feel free to hold your nose as you learn about how you can help protect people’s health within your client’s buildings.
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Guest Column: Perforated Materials In High-Purity IAQ Applications

By Shawn Windley
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Nowhere is the quality of indoor IAQ more important than in the operating room (OR) of a hospital.
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Case In Point

Low-speed fans team with UV light to improve IAQ at Rwandan hospital

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Low-speed fans provide needed ach at this remote mountain hospital. All buildings, regardless of age, are susceptible to IAQ deficiencies. Chemical exposure from new construction, tight building envelopes, and humidity
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Taking Notes: Desiccant Dehumidification

By Charlie Waddell and Steven Welty LEED® ap,
One Comment
Whether your client has a school or office building, desiccant dehumidification can successfully control the project’s humidity, save energy, and remove pollutants. This primer empowers you to teach your clients how desiccants work, while other tips and applications can help your future projects more than make the grade.
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Case In Point

Air Force hangars in Alaska salute new heating system's tempering effect

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A heating system evened out the temperature and improved working conditions at this Alaska Air Force hangar.Extreme sub-arctic temperatures at Eielson Air Force Base near Fairbanks, AK, where winter temperatures
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MAXON - Don't Operate Unaware

By Michael Dawson and Richard M. Reyes BSE
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Gain Insight into Valve Performance
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VAV For Laboratory Spaces

By Steven G. Liescheidt, P.E., CSI-CCS, CCPR
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Terminal devices, pressurization, supply air, proper exhaust … those factors and more go into a well designed VAV system for sensitive lab applications. From general tips to changing details such as fabric duct elements, booster fans, and a new AMCA standard, the author equips you to succeed in one space that is no place for experimentation.
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ES Gallery: Snapshots & Systems

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

Es August 2014 cover

2014 August

Check out the August 2014 issue of Engineered Systems, with features on UFAD systems, cloud services, and much more!

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