HVAC Retrofits

Case In Point

Florida prison escapes higher costs with desuperheaters

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Florida, like most southern states, has an abundance of sunshine throughout the year.
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Trust But Verify

After 40 years and other engineering studies, a large university building still suffered from humidity problems. Our intrepid author dug into the data and the dark corners of the building in pursuit of the culprit — or culprits?
By Douglas Lucht, P.E.
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Sebesta Blomberg was commissioned to study a humidity problem for a 400,000–sq-ft library at a university in the Midwest a few years ago.
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Connecting New Boilers To Old Pipes

Combustion air, ventilation, piping, expansion tanks … with these and other factors affecting performance and safety, the boiler swap is not exactly a plug-and-play situation.
By Ray Wohlfarth
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Designing a commercial boiler replacement where you were not the original designer or installer might have some hidden dangers that could haunt you for years.
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Case In Point

Kansas hospital achieves big city IAQ, efficiency

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When Geary Community Hospital (Junction City, KS) underwent a $34 million expansion, it was promised a cutting-edge HVAC design that would reduce maintenance costs, increase energy efficiency, and provide unprecedented IAQ.
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Building Automation

DDC Or Pneumatic?

Energy savings isn’t the only factor when considering a controls retrofit.
By Paul Ehrlich, P.E.
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Much of our work involves energy studies and retrofits to commercial buildings.
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Are There Hidden Problems In Your Hydronic Boiler Project?

Putting a new boiler in is a lot more complicated than just putting a new boiler in. You’re often taking ownership for any problem, real or potential, anywhere in the hydronics system.
By Ray Wohlfarth
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Designing a commercial boiler replacement where you were not the original designer or installer might have some hidden dangers that could haunt you for years.
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Chiller Retrofit: The Attraction Of Magnetic Bearings

With multiple expansions and projects, a DC-area hospital also had to plan for cooling that could keep up with developing demands and spaces.
By Richard M. Heim, P.E., LEED AP and Paul J. Orzewicz, P.E.
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When the facilities management staff of Mount Vernon Hospital completed an assessment of its central chilled water plant, it became evident that while the original chillers had served the hospital well since its opening in 1975, they were ready for replacement.


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Open for public comment: proposed revisions for existing buildings standard

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Public input is being sought into revision of an ASHRAE/IES standard that addresses retrofit of existing residential and commercial buildings to achieve greater energy efficiency.


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Case In Point

Hamburger University serves up super-sized pool dehumidification project

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McDonald’s is one of the most visible fast-food entities, with over 32,000 restaurants worldwide. However, patrons may not be aware that McDonald’s trains many of its employees at its Hamburger University, also known as “HU.”
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Building Automation

Upgrading Aging Building Automation

Is it time for an update or a full replacement? Here are some factors to think about when evaluating mechanical systems.
By Paul Ehrlich, P.E.
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Often when we are evaluating or assessing an existing building, we are on the lookout for equipment and systems that are in poor condition or approaching the end of life.
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Multimedia

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ES Gallery: Snapshots & Systems

Check out highlights from projects featured in our magazine this year!
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.

Engineered Systems Magazine

Es August 2014 cover

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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Tomorrow's Environment Podcast

This series from longtime columnist and chronic forward-thinker Howard McKew covers a lot of ground -- from retrocommissioning to systems training, on toward checklists for drawings and tips for meeting minutes. Click HERE to be taken to the podcast page!

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