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Articles Tagged with ''standards''

Impeller: Ziehl-Abegg

Ziehl-Abegg has introduced its new ZAvblue impeller, which the company claims is up to 20% more efficient than other standard products. The company also says the bionic design of the new impeller requires significantly less space in the customer device. Equipment designers can now generate the current airflow with impellers that are one size smaller.


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Chillers: Johnson Controls

Johnson Controls has introduced the Quantech Air-Cooled Chillers. The company says the chillers offer up to 50% annual energy cost savings compared with the replaced chillers, have a low lifecycle cost, meet or exceed ASHRAE standards, and help earn LEED credit with a low refrigerant charge. Three models make up the Quantech chiller line. The QTC2 (15-50 tons) provides chilled water for all air conditioning applications using central station air handling or terminal units. The state-of-the-art installation uses tube and fin condensers, brazed plate evaporators, and scroll compressors.


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Editor's Note

From Awards To Pink Slips

Some late notes of interest from the inbox run the gamut of outcomes.
As we were putting this issue together, I got a follow-up email from Joseph Dussault, who co-wrote the feature about the big ventilation/ductwork retrofit at Yawkey Boston Medical Center.
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Packaged Unit: Johnson Controls

Johnson Controls introduced the Luxaire® Ovation™ Ultra High Efficiency Packaged Unit. The combination of the unit’s two-stage compressor, VFD, high-efficiency indoor/outdoor coil, and premium-efficiency indoor/outdoor motor, delivers up to 18.1 SEER and 14.35 EER.


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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.
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.
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4/15/15 11:00 am EST

On-Site Critical Power Generation for the Data Center & Other Critical Facilities

Can your data center survive a 48 hour outage? Can you continue to pay escalating utility power bills in the years to come? On site "critical" power generation is the inevitable answer for these challenges. 

Engineered Systems Magazine

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2015 March

Check out the March issue of ES with the cover story: High-Rise Overhaul, and features: Selecting & Installing Fire And Smoke Dampers To Ensure Code Compliance; Energy Optimization In Existing Buildings; and The Skinny On Reactors For VFDs.
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