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Technical

Fuel Cells Growing in Use in U.S., Especially in CHP Applications

In a little more than a year, 34 major corporate customers have installed, deployed or purchased more than 250 fuel cell power systems and hundreds of backup power units, totaling more than 30 MW of power. “The Business Case for Fuel Cells 2011: Energizing America’s Top Companies,” profiles this select group of companies.


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Designed to Simplify: Grooved Mechanical Piping Benefits

Grooved mechanical piping has been changing the way contractors do business for more than 85 years, but this method of pipe joining is still unknown or misunderstood in some areas of the commercial building industry.


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Data Loggers Help Keep Guests Comfortable at Marriott Hotels

When a plumbing, heating or cooling snafu occurs in one of the 13 Marriott hotels under his supervision, it is John Miller’s job to root out the problem and preserve the comfort of guests.


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Contractor Reduces Setup Time With Electronic Controller

Setting up a refrigeration condensing unit for a walk-in cooler can present a challenge in foodservice applications.


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More Products That Save the HVAC Way

Saving energy saves dollars. Continuing the theme of the feature story “Saving the Day the HVAC Way” in this issue, here are a few more products that offer end users energy efficiency savings.


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Nationwide Utility Rates Now Available on Open EI

Utility rates from cities all across the United States are now available in one place — the U.S. Department of Energy’s (DOE’s) Open Energy Information platform, or OpenEI.org.


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High-Efficiency Chillers Projected to Provide Big Savings

The University of Texas Arlington has commissioned two new high-efficiency chillers that will serve the main campus cooling loop and provide projected annual energy savings of nearly $200,000.


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Shaft Grounding Rings Improve Sustainability of HVAC Motors

Shaft currents induced by VFDs can wreak havoc with bearings, so a reliable method of shaft grounding is essential.


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Fail-Safe Overheating Protection: A Necessity for Electric Heaters

Record power demands during the last two winters caused electrical distribution zones to trip off-line.


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NREL Data Center Is a Model of Energy Efficient Design

The data center for the U.S. Department of Energy’s (DOE’s) National Renewable Energy Laboratory (NREL) recently benefited from an “extreme home makeover” as it moved from leased office space to the lab’s ultra energy efficient Research Support Facility (RSF). The lessons learned are expected to help data centers across the nation green up their ones and zeros.
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2014 SMACNA Annual Convention

Views from the 2014 SMACNA Annual Convention in San Antonio.

Podcasts

NEWSMakers: Chris Mathis

Chris Mathis, president of Mathis Consulting Co. and vice chair of ASHRAE’s residential ad hoc committee, talks about ASHRAE’s exploration into the residential market. Posted on Oct. 17.

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ACHRNEWS

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2014 October 20

Check out the weekly edition of The NEWS today!

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EFFICIENCY STANDARDS

DOE has denied AHRI’s petition for reconsideration of walk-in standards. Is it getting harder to reach consensus on efficiency standards?
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HVACR INDUSTRY STORE

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2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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