Ventilation

Case In Point

Library earns LEED, foils complaints with UFAD

Patrick Baldwin-McCurdy fields daily indoor air temperature requests from employees and students, but Seattle University’s (SU) lead buildings control technician rarely hears HVAC complaints from the college’s new library addition featuring under floor air distribution (UFAD).
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Single-Zone AHU Trend Analysis – Cooling

How would you know if you were getting the right result via the wrong sequence of events?
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Single-Zone AHU Trend Analysis

On to a new case after solving a museum mystery …
In this column, I will describe the “issue” disclosed through analysis of the trend graph included in my January 2012 column. I will also introduce a new system and show its trend graph, leaving it up to the reader to discover the operational “issue” illustrated in the graph. The answer will be given at the start of next month’s column.
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Air handler supports the mission at a unique aviation-themed waterpark

The middle of Oregon’s wine country is an unlikely setting for the campus of a world-class aviation museum, housing the Howard Hughes “Spruce Goose” and many historic aircraft. Even more unlikely is finding an Innovent custom air handler nestled under the fuselage of a B747 airliner, which sits atop the roof of a lively waterpark.
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Linkage lessens load of damper installation

Andy Cummings of Southland Industries has suffered through his share of cumbersome damper actuator installs. With over 30 years of experience in the sheet metal industry, he knows that the process is not only time-consuming, it can yield disappointing results if the connections are in any way unstable.
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Air-handler system helps symphony recover from flood

During the first two days of May 2010, a nearly 14-in. downpour fell on “Music City USA” and the Cumberland River burst its banks, causing the worst flood in Nashville’s history. Among the many businesses that suffered terrible losses during the flood was Schermerhorn Symphony Center, completed just four years earlier and home of the Nashville Symphony.
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Art StorageVault AHU Trend Analysis

What secret is this dark vault hiding?
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Educating by Example

Through a flexible design incorporating radiant heating and cooling, demand ventilation, energy recovery, and VAV, Manhattan’s Cooper Union leads its class in sustainable performance in classrooms, labs, and beyond.
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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.
Public comment sought on a proposed additional default value for the IAQ standard.
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Case in Point

Campus unclogs coils, frees up funds

“Too warm.” “Too stuffy.” “Not enough airflow.” These were just a few of the countless complaints that facilities managers of the Basic Medical Science Building at the University of New Mexico were receiving on a regular basis.
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Engineered Systems Magazine

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2014 November

Check out the November 2014 issue of Engineered Systems and the cover story: District Chilled Water Systems Design: A Tale Of Two Footprints.

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