Ventilation

Ventilation To Improve IAQ In Schools

The author heads to the blackboard to break down fundamental outside air and sensor strategies (and how they can work together).
By Paul Schlueter
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Providing high-quality education for our nation’s children in grades K-12 has never been more important than it is today. The world is changing quickly, and we need to provide an educational system that prepares them for this fast paced world in which we live.
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Out of this world HVAC design protects space shuttle from earthly elements

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The space shuttle Endeavour is a survivor. 


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Identifying Energy Components in Exhaust Ventilation Systems

By Khalil Kairouz, Ph.D., P.E. and Dale Price
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Several variables can drag down an otherwise efficient ventilation design. Some are quite familiar. However, others such as acceleration and hood entry effect may lurk unrecognized or misunderstood. Compensation via overdesigned systems isn’t the answer, either, so what to do? Get to know these individual elements better for better exhaust results.


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Exhaust ductwork solves tough MEP challenge at research facility

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Finding new solutions to the complex challenges of global climate change is the task that drives the scientists and energy industry leaders who collaborate in the Energy Biosciences Institute at UC Berkeley’s new five-story, 11,300-sq-ft Helios Energy Research Facility in downtown Berkeley. 


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Are We Unknowingly Wrong-Sizing Ducts?

By Ernie MacFerran
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A small team led by an award-winning Florida engineer decided to test conventional wisdom about pressure loss, both in a straight run and in comparing supply and exhaust scenarios. Early returns suggest the data may be flowing in an unexpected fashion.
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The Importance Of Facility Air Balance

By Luke Facemyer
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Brush up on the environmental factors that can throw things out of, well, balance, and note how space pressure problems can create assorted complications.
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Cancer center finds peace and quiet with duct liner

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A lot will happen under the single rooftop of the new Wesley Long Cancer Center in Greensboro, NC. The 33,000-sq-ft addition to the Moses Cone Regional Cancer Center includes a business office, lobby/waiting area, admitting, phlebotomy lab, breast cancer treatment, exam areas, chemotherapy, an auditorium, and education classrooms.
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Up The Commercial Kitchen Ventilation Hood Type I Stack: No Problems Or Complaints

By John Clark, P.E.
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Leakage caused by modern cleaning techniques, evolving codes, increased airflow requirements ... kitchen ventilation design has become more complicated than the old sizing and design challenges. Of course, they’re still around, too. Grease is the word, so review these tips to keep it from popping up in the wrong places.
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Case in Point

Fan terminals elevate raised-floor office project

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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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HVAC Security Emergencies: No Terrorist Required

By Howard McKew, P.E., C.P.E.
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Plenty of potential ventilation crises await many otherwise unassuming buildings, thanks to nothing more sinister than truck accidents, emissions from nearby buildings, or unavoidable natural disasters. However, by pairing a clear basis of design with HVAC response strategies, building owners can apply some forethought and preparation to avoid worst-case consequences. Start by asking the right questions about your facility.
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9/25/14 2:00 pm EDT

Test Anxiety? Learn How and When to Test Your Standby Generator

This webinar will discuss generator reliability, testing, and troubleshooting from a practical perspective and make recommendations for a comprehensive inspection and testing program.

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2014 September

Check out the September 2014 issue of Engineered Systems, with features on radiant panels, refrigerant flow systems, and much more!

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