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Ventilation

Case In Point

Out of this world HVAC design protects space shuttle from earthly elements

January 31, 2013

The space shuttle Endeavour is a survivor. 


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Identifying Energy Components in Exhaust Ventilation Systems

January 30, 2013

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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Case In Point

Exhaust ductwork solves tough MEP challenge at research facility

January 2, 2013

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?

October 31, 2012
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

October 31, 2012
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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Case In Point

Cancer center finds peace and quiet with duct liner

October 19, 2012
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

August 27, 2012
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

August 22, 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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HVAC Security Emergencies: No Terrorist Required

July 2, 2012
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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HVLS Warehouse Fan: Safety Is A Hot Topic

July 2, 2012
These fans (and their controls) take the NFPA exam for impact in a fire setting.
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3/25/14 2:00 pm EST

Improving Cooling and PUE in Existing Data Centers

On-Demand This webinar will provide cost-effective practical tips and feasible retrofit solutions that can be implemented in operational data centers to address some cooling issues and improve energy efficiency.

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Design Flaws

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