Ventilation

ARTICLES

Case in Point

Fan terminals elevate raised-floor office project

May 02, 2012
Critchfield Mechanical, Inc. an HVAC engineering firm in Menlo Park, CA needed a cost-effective and energy-efficient perimeter zone ventilation solution.
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ASHRAE webcast highlights DOAS

March 27, 2012

Registration for ASHRAE’s upcoming webcast, “Dedicated Outdoor Air Systems – A Path to Balancing Energy and IEQ,” opened March 19. The webcast focuses on the departure from conventional HVAC systems and takes place April 19, 2012, from 1 to 4 p.m. EDT.


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Cleanroom Variable Airflow Design

March 23, 2012
Appropriately enough, a good variable airflow design accommodates and refines a number of design variables. Particle monitoring strategies, minimum supply air calculation, HVAC sequencing, and space pressurization are just a few stops on the way to spotless performance.
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Centrifugal Fans Installation Guide

March 23, 2012
Here’s a good reference for facilities, TAB pros, or even commissioning agents on what should be found on site (and how to achieve it in the first place). For install through setup, properly managing connections, bearings, controllers, and vibration risks will create an air of success.
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Case In Point

Library earns LEED, foils complaints with UFAD

February 29, 2012
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

February 27, 2012
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 …
February 01, 2012
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

January 12, 2012
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

January 12, 2012
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

December 05, 2011
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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Multimedia

Videos

Image Galleries

ES Gallery: Snapshots & Systems

Check out highlights from projects featured in our magazine this year!
10/18/11 2:00 PM EDT

Econet - Where Renewable and Recoverable Energy Unite

Engineered SystemsON-DEMAND: We will be discussing a new, innovative system, which is more reliable and efficient than current AHU systems. Heating, cooling and heat recovery are integrated into a common circuit. The result is a shorter and more compact ventilation unit, with less pressure loss.

THE MAGAZINE

Engineered Systems Magazine

Engineered Systems May 2012 Cover

2012 May

Check out the May 2012 edition of Engineered Systems
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