Mission Critical HVAC

Equipment Protection through Hot Spot Mitigation

CONTRIBUTED BY: Syska Hennessy Group
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Hot spots in the data center can be attributed to two main factors: A lack of cooling capacity and/or a lack of cooling delivery.
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DCIM, DOAS, maybe LEED?

Pull up a pixel and pick an acronym, any acronym …
By Kevin Dickens, P.E.
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How many blogs are there? I would suggest one too many if I am now contributing to one.
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EDITOR’S NOTE

Can’t-Fail Facilities

From microsite to going live on-site at AHR, we’re putting the spotlight on critical environments.
By Robert Beverly
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Critical facilities … it’s not just about data centers, much like this magazine has evolved to be much more than our traditional dead-tree issue.
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The X-Factor: Y Should U Care?

Unprecedented vendor-neutral data has been brought down from the mountain on a digital tablet.
By Kevin Dickens, P.E.
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Unprecedented vendor-neutral data has been brought down from the mountain on a digital tablet. That’s helpful for data center designers, but applying a little thought and site-specific consideration can reveal the path to wisdom in areas like failure rate, noise, power draw versus temperatures, and more.
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Myths, Mix-ups, and Misconceptions

Do you know what you think you know about US/EU cleanroom classifications, HEPA efficiency, and air change rules of thumb? And what does that leak really mean for performance?
By Norman Goldschmidt
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Do you know what you think you know about US/EU cleanroom classifications, HEPA efficiency, and air change rules of thumb? And what does that leak really mean for performance? Read on for further tales from the road to science-based environmental control in biopharmaceutical facilities.
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Critical Facility Mechanical Equipment And System Reliability

Come to terms with the key terms, and learn how to wrestle with the cumulative effect as each component tries to edge the overall system reliability downward.
By Vincent A. Sakraida, P.E.
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In today’s world, so-called “high-performance, sustainable” facilities are a dime a dozen. But many of these buildings rely on overly complex mechanical systems to carry out their mission.
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Case In Point

History Colorado protects museum data with VRF zoning system

A new zoning system enabled History Colorado to maintain the precise temperature to keep its treasures safe.
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Established in 1879, just three years after Colorado became a state, the Colorado Historical Society had long served as the state’s memory keeper, occupying a number of buildings over the course of its 133-yr history.
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The Heat Is On But The CRACs Are Off... Now What?

With Hurricane Sandy fresh in our minds, let’s examine the anatomy of a recent outage’s immediate HVAC consequences as a guide toward protecting equipment in the future.
By Kevin Dickens, P.E.
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October 29 was a Monday. It was also the day that Hurricane Sandy made landfall in New York City. Around 7 p.m., Con Edison shut power off in Lower Manhattan, and it would be sometime Saturday before lights would begin to flicker back on.
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Commercial vs. Industrial Automation In Data Centers

By Sean Graham, P.E.
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Since data centers are atypical in several aspects, unique BMS approaches are required to optimize their control, monitoring, and operation. Learn why it is important to know the detailed pros and cons between commercial and industrial automation system hardware, software, and instrumentation as you consider the facility’s automation design and associated costs.
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Improving Data Centers With Aisle Containment

By Daniel Kennedy
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In which the author lays out the path from earlier data center design to a more recently discovered airflow challenge. Read on for his insights on how to keep positive differential pressure from being a negative for your facility’s energy budget.
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Engineered Systems Magazine

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2014 August

Check out the August 2014 issue of Engineered Systems, with features on UFAD systems, cloud services, and much more!

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