IAQ

Staying Dry & Comfortable With Liquid Desiccants

Let a scientist with experience both at the National Renewable Energy Laboratory and on the manufacturer side discuss the possibilities of a newer dehumidification technology within the framework of the same old moisture challenges.
By Dr. Phil Farese
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In the summer, conventional air-conditioning systems in buildings are challenged to meet peak humidity loads. Over time, buildings have reduced their heat (sensible) load, but have done less to reduce their moisture (latent) load. As a result, this moisture load can become too large for conventional air-conditioning systems to handle.
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Calculated Conditioning: The IAQ Of UFAD

UFAD and displacement ventilation systems require accurate estimates to meet relative humidity requirements and ensure efficient operations. Take a look at a few design options, and contemplate the reader challenge at the end.
By Robert Bolin, P.E., HBDP, LEED Fellow and Andrew Reilman, P.E., HBDP, LEED AP BD+C
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Since their introduction in Europe in the 1950s, and their domestic rise in specification during the 1990s, UFAD and displacement ventilation systems promise significant energy savings as a direct result of a higher supply air temperature that yields an increase in the use of economizer or free cooling hours.
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Case In Point

AHUs with energy recovery improve hospital’s ventilation rates while preserving IAQ

Following the installation of an ERV, odor and cooling complaints disappear at CoxHealth's Turner Center.
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A multi-function health services facility in Springfield, MO is a showcase for sophisticated air quality management. The Turner Center is a unit of the CoxHealth system and is part of the Cox South health care campus in south Springfield.
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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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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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Humidification: Options, Amines, and the Impacts of ASHRAE Standards 62.1 And 170

By Jeffrey Boldt, P.E., LEED® AP, HBDP and Paul Hansen, P.E.
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Whether your system uses boiler steam or another method, the authors walk you through the pros and cons of various sytems, the evolving standard landscape regarding those corrosion-fighting amines, and some energy reduction ideas.
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Energy-Efficient Dehumidification In Health Care Facilities

By Jared Edwards, P.E., LEED® AP BD+C
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With a wide spectrum of specialized spaces and particular outside air requirements, a hospital’s en-ergy-efficiency efforts start when arranging which areas go where. From there, the author leaves no technology unturned — chilled beams, geothermal, DOAS, VRF, etc. — in evaluating which ap-proaches might best contribute proper ventilation and humidity in which environments, with an eye on minimizing facility energy consumption.
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Air Filtration in Health Care Facilities

By Garold Hamilton P.E. LEED®
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Just what the doctor ordered: specifics on pre-filters, after-filters, AHU tips, and more to meet critical IAQ goals and prevent that ventilation system from operating in a “fog.”
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Dehumidification With Extra Bite

By Russ Fletcher,P.E.
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Pharmaceutical giant GlaxoSmithKline faced some extreme dehumidification requirements for its facility manufacturing denture-cleaning tablets. The strategy it selected not only reached target humidity levels but also allowed a 3º increase in chilled water temperature. Get the details on the system and savings that put smiles on the faces of this project team.
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Vaisala announces Humidity 201 seminar series for U.S. and Canada

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Vaisala has added a new seminar to its Humidity seminar series. "Monitoring & Mapping cGMP environments" was created to help GxP-compliant facilities reduce the risk of deviations being observed during audits and inspections. The new seminar reviews the relevant GMP regulations and guidances around temperature and humidity mapping and monitoring and includes a workshop where participants will get hands-on experience of temperature and humidity validation by Vaisala's experienced validation expert, Paul Daniel.


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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

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