Ventilation and IAQ

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This project team left nothing to chance when it came to designing a five-story mixed-space facility for a Chicago gaming company. They also dealt a full hand of space-specific tactics: upgraded DX units, a dedicated variable-speed kitchen exhaust system, underfloor air, and better motors and drives improved the odds for efficiency. Pull the handle on this project story to get to the payoff.

When it comes to yoga studios, Chad Clark has seen some of the worst IAQ problems

Do you know what you think you know about US/EU cleanroom classifications, HEPA efficiency, and air change rules of thumb? And what does that leak really mean for performance? Read on for further tales from the road to science-based environmental control in biopharmaceutical facilities.

Turner Construction Co. has been responsible for working on many notable buildings in Ohio and across the United States, including the Ohio State University Stadium renovation, the new patient tower of Nationwide Children's Hospital, and the Hilton Columbus Downtown.

Energy-saving mechanical systems are popping up everywhere — even cows are feeling the benefits

Day-to-day operations and the occasional renovation create two sets of distinct threats to IAQ and patient health. From monitoring stations and magnehelic pressure gauges to multiple resources for design and O&M guidance, the author points to recent projects and current wisdom to create a valuable resource.

The old saying goes, “Killing two birds with one stone.” But what if you could kill six with one stone? That’s what Abdul Momen, associate director of maintenance and operation for the facilities department at Georgia State University, aimed to accomplish at the school’s 216,000-sq-ft Natural Science Building.

The city of Côte Saint Luc in Quebec recently opened its new Aquatic and Community Centre with a cost of $18 million. While this may seem like a hefty price tag, the city will be saving millions of dollars on energy costs, thanks in part to the center’s HVAC system.

In the summer, conventional air-conditioning systems in buildings are challenged to meet peak humidity loads. Over time, buildings have reduced their heat (sensible) load, but have done less to reduce their moisture (latent) load. As a result, this moisture load can become too large for conventional air-conditioning systems to handle.

Since their introduction in Europe in the 1950s, and their domestic rise in specification during the 1990s, UFAD and displacement ventilation systems promise significant energy savings as a direct result of a higher supply air temperature that yields an increase in the use of economizer or free cooling hours.