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Home » Topics » Engineered Systems NEWS » HVAC Engineering Sectors

HVAC Engineering Sectors
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oversized pumps

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.
Ray Wohlfarth
Ray Wohlfarth
December 1, 2013
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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Editor's Note
EDITOR’S NOTE

Can’t-Fail Facilities

From microsite to going live on-site at AHR, we’re putting the spotlight on critical environments.
Robert Beverly
December 1, 2013
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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Tomorrow's Environment
Tomorrow’s Environment

When To Rebalance Chilled Water And Hot Water Systems

Health care facilities are just one example where rebalancing not only ensures environmental quality but also enhances energy usage.
Howard McKew, P.E., C.P.E.
November 1, 2013
There are no industry standards for rebalancing HVAC water systems, so it got me thinking about the topic and I came up with several questions pertaining to rebalancing chilled water, condenser water, and hot water heating systems.
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Commissioning
Commissioning

Construction Phase HVAC Controls Coordination

Don’t be the team that finishes the building and then wonders why nobody brought the airflow measuring station.
Rebecca T. Ellis, P.E.
November 1, 2013
HVAC systems continue to be the most challenging part of a new construction project to get right the first time, and the most challenging parts of the HVAC systems are their controls. I believe there are two root causes.
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molecules graphic

Patient Rooms: CFD For Better IAQ

Can a location of air return affect the flow path of airborne pathogens in a patient room? Use simulations to manage the variables and improve the design in a space that is no room for error.
Kishor Khankari, Ph.D.
November 1, 2013
Air is the primary carrier of heat, moisture, contaminants, and airborne pathogens in patient rooms, isolation rooms, and operating rooms.
Read More
magnetic bearings, silver globes

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.
Richard M. Heim, P.E., LEED AP Paul J. Orzewicz, P.E.
November 1, 2013

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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BayView Corporate Tower
Case In Point

UVC lights the way to cleaner air, energy savings at FL office tower

November 1, 2013
In real estate it’s all about location. But in south Florida, where beautiful views and gorgeous weather are the norm, building owners need to find ways to differentiate themselves and bring in tenants.
Read More
energy recovery wheels
Case In Point

Energy recovery earns high marks at RI career academy

November 1, 2013
Designing a new high school to be 40% more efficient than ASHRAE 90.1 – 2001 energy requirements is a lofty goal.
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Ventilation grate

Calculated With Care: Ventilation in Health Care Systems

A Mississippi clinic needed above-average design on a budget. The equipment was nothing unusual. However, creativity and attention to detail uncovered opportunities to fine-tune the design and exceed ventilation benchmarks for less.
Hamilton
Gary Hamilton P.E., PMP, FASHE, LEED AP
Ionel Petrus
Ionel Petrus, P.E.
November 1, 2013
Engineers’ daily challenges include calculations for outside air, supply air, and return or exhaust air flows — all while balancing mandated code requirements with owners’ expectations for performance, equipment first-cost, and future energy costs.
Read More
historic building

Life Safety Upgrades In Historic Buildings

Christina Collester, P.E. Matthew Chalifoux, AIA
September 23, 2013
Retrofitting more than a half-million square feet of heavily used space for better life safety coverage is never simple. Peculiarities of building design and existing materials only made the task tougher for this project team as they sought to integrate NFPA and GSA requirements into a successful and safe solution.
Read More
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