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Home » Topics » Engineered Systems NEWS » Ventilation and IAQ

Ventilation and IAQ
Ventilation and IAQ RSS Feed RSS

temporary cooled chiller
CASE IN POINT

Contingency plan keeps school in session during HVAC outage

May 1, 2014
Afternoon temperatures in Virginia can reach uncomfortable highs on late summer days.
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air-cooled chiller, school, IAQ
CASE IN POINT

Hybrid HVAC design earns high marks at KY school

May 1, 2014
The new $60-million George Rogers Clark High School in Winchester, KY, is saving 35% each month in utility costs, thanks to its green design.
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fabric fittings, data center
Case In Point

Fabric duct solution unburdens data center build-outs

April 1, 2014
Cooling build-outs can be one of the highest operational costs facing data storage facilities.
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air handling diagram

Lab Results: Big (And Sometimes Fewer) Changes

When you have to individually go verify whether 128 air curtains meant to ensure air balance in the original design’s branch ductwork are still there or not, you’re not having an easy time of it.
Douglas Lucht, P.E.
April 1, 2014
One of the worst-performing buildings I’ve had the pleasure to study was a 375,000-sq-ft laboratory building at a Midwest university.
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tablet

Tablet As Building Engineering Tool, Part 4: Operations & Maintenance

Analytics to workorder management, energy audits to light meters — the spectrum of apps for facility engineering tasks continues to get wider and more versatile.
Jeffrey Seewald
Jeffrey Seewald, P.E,
March 1, 2014
“Collaboration is unavoidable.”
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Commissioning
Commissioning

Unsampled Systems

Choosing not to sample every system can be a gamble, but here are some ways to lower your risk.
Rebecca T. Ellis, P.E.
March 1, 2014
Over the past two months, this column has addressed the issue of sampling systems for field functional performance testing
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Case In Point
Case In Point

Filtration helps efficiency to soar at Denver Airport

March 1, 2014
At 35,000 acres, Denver International Airport (DIA) is the largest airport site in North America, and the second largest in the world. More than 53 million passengers travel through the airport annually.
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blue bubbles, blue graphic

Restoring The Low Limit For Indoor Relative Humidity

The research is consistent over the years, and the cost of low humidity continues to rise. Even our increasingly computer-oriented lifestyle exacerbates the problem.
Gary L. Berlin
February 1, 2014
Industry leaders realized hundreds of years ago that their processes and machines operate best when the indoor relative humidity is maintained at an optimum level for their process
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colored buildings, 3D buildings

Problems Found In The Field: How Retrocommissioning Can Solve Them

The symptoms are familiar: hot and cold complaints, higher-than-expected costs, etc. Here’s a look at how the retrocommissioning process should work to tackle these and other developments for your facility.
Michael Falkenstern Scott Blackman, LEED AP
February 1, 2014
In the last few years, major cities throughout the country have passed new energy code requirements mandating that commercial buildings perform regular retrocommissioning audits.
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Commissioning
Commissioning

Functional Performance Test Sampling

So you’ve decided on your sample size. What next? What happens when a system failure is found?
Rebecca T. Ellis, P.E.
February 1, 2014
Last month, this column addressed the need for (and philosophy behind) sample testing certain systems when 100% functional performance testing (FPT) is impractical from a time and/or budget perspective.
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