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Ventilation

From commissioning fans to meeting ASHRAE standards, a repository of insights and projects.

ARTICLES

CASE IN POINT

Baseball field concessions go "fly-free" with air curtains

Thanks to foodservice air curtains as part of a $10 million renovation at McKechnie Field, the only flies near concessions are those of the foul ball nature.
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CASE IN POINT

UV eases hospital's IAQ concerns

Treasure Coast Hospice has successfully reduced its HVAC maintenance costs, increased unit efficiencies, and extended equipment lifecycles while simultaneously increasing patient IAQ.
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BUILDING AUTOMATION

Demand-Controlled Ventilation

The right design strategy can lead to safe, more efficient environments.
One of the challenges we have with commercial buildings is the fine line between providing a safe and healthy indoor environment and maximizing energy efficiency.
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IAQ: A PHYSICIAN'S VIEW

An Inside Job

Let’s start by understanding the modern contamination loads working against us.
Most people are well aware that outdoor air pollution can damage their health, but many are not aware of the serious harm that indoor air pollution, or contamination, can also cause.
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Issues and Improvements In Commercial Kitchen Exhaust Ducts

For many years, duct products have often involved significant on-site measurement and construction, bringing certain advantages and risks. Here, that practice is com-pared to the use of listed ductwork, with an eye on duct integrity, hood connections, clearance to combustibles, fire ratings, and more.
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The Pitfalls Of Pressurization Smoke Control Systems

One of the primary objectives of the model building codes is to minimize the impact of fire, including reducing to the greatest extent possible the spread of fire and smoke floor-to-floor.
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Protecting Those Who Served: Ventilation At Walter Reed

At Walter Reed National Military Medical Center, the mission was an air handling overhaul without interrupting the usual delivery of care. The project team delivered a safer, upgraded environment via a new desiccant system, air handlers, increased flexibility in the surgical suites, and more.
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Infectious Microorganisms Do Not Care About Your Existing Policies

Personnel, common practices, and pathogen behavior all complicate the battle against hospital-acquired infections (HAIs). An overly narrow definition of “airborne” and a habit of confusing comfort with safety may be making things worse, too. Understand the enemy — why less may be more when it comes to room changes, and more may be more regarding relative humidity — to get beyond “business as usual” and knock down the risk to patients.
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ASHRAE 170 Update: Standard Operating Procedure

Air changes in some but not all spaces, duct liner here but not necessarily there, rooftop unit requirements … do the rounds and get a feel for the current condition of ASHRAE Standard 170, Ventilation of Health Care Facilities.
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BUILDING AUTOMATION

Control Of Critical Environments

In these applications, reliability and accuracy are of primary importance.
On all projects, the need to provide reliability, accuracy, and safety need to be carefully considered as part of the overall design, but when we start looking at critical environments, these requirements become paramount in the design process.
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Engineered Systems Magazine

Cover

2015 January

Check out the January issue of ES with features on commercial kitchen exhaust ducts, doubling energy productivity, pressurization smoke control systems, and more!
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