December 1, 2011
Features
This article will explore the learning curve in innovation and the challenges of green HVAC systems in both new construction and renovation. ...
There are two basic types of desiccant dehumidifiers: liquid and solid. This article will focus on solid-desiccant equipment....
Improvements have led to greater efficiency, lower static tension, less belt pull, reduced maintenance, and more...
A condition that exists in a tall building when outside temperature is significantly lower than the temperature of the spaces in the building is called stack effect. Stack effect is the phenomenon in which a tall building acts as a chimney in cold weather, with the natural convection of air entering at the lower floors of the building, flowing through the building, and exiting from the upper floors. ...
Columns
As I write this, the month of December is just getting under way and the year of 2011 is just about wrapped up. It’s a year that saw a lot of change, a year that, in some cases, didn’t rise to the level of our expectations and in other cases, simply surprised us. ...
When you have decided to select an energy analyst to compliment your project team, understanding what energy analysis is will help ensure that you select a qualified professional....
Would the author of the article “Evaporative Pool Dehumidification” (October 2011, http://bit.ly/Lentz_1011) comment on a few issues? The IDECVAV system doesn’t appear to address the air-distribution recommendations provided in Section 4.6 of ASHRAE Handbook—HVAC Applications ...
Departments
At the suggestion of Indianapolis-based supplier AC Equipment Representatives Inc., ISU looked at plastic cooling towers from Delta Cooling Towers Inc....
The entire heat-recovery system and four AHUs, which previously were under proprietary control, are controlled with the BAC-A1616BC BACnet Building Controller (B-BC) from KMC Controls....
Started in 1964 by the Sisters of St. Joseph Benedict Cottolengo, Marian Center School and Services in Miami Gardens, Fla., includes a school for students with developmental disabilities, an adult day training and work program, and a full-time residential cottage for women. In the 10,000-sq-ft school building, the 40-plus-year-old central air-conditioning system "was on its last leg," Executive Director Thomas Horan said. ...
The contractor was about to start installing new coils to replace coils that froze when the director of engineering called to go over my design....
News & Notes
International Exposition Co. (IEC), producer and manager of the International Air-Conditioning, Heating, Refrigerating Exposition (AHR Expo), recently announced the winners of 2012 AHR Expo Innovation Awards....
A survey initiated by a nonprofit and nonpartisan think tank highlights a significant gulf between the views of Americans and those of Congress and the White House regarding energy policy....
Danfoss, manufacturer of high-efficiency electronic and mechanical components and controls for air-conditioning, heating, refrigeration, and motion systems, is accepting entries for its third annual EnVisioneer of the Year competition....
The International Facility Management Association (IFMA) recently launched Benchmarks Exchange (BEX), a Website housing comparative building data....
The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) recently announced the relaunch of a Website intended to keep industry professionals and equipment owners informed on the phaseout of ozone-depleting refrigerants....
Danfoss, manufacturer of high-efficiency electronic and mechanical components and controls for air-conditioning, heating, refrigeration, and motion systems, recently introduced a free application allowing users to convert refrigerant pressure to temperature instantly on their mobile devices. ...
A white paper the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) is calling the first vendor-neutral thermal guideline for liquid-cooled data-processing environments is available for free download....
The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) announced new leadership during its 2011 Annual Meeting, held Nov. 12-15 in Bonita Springs, Fla....
After determining buildings built to the 2010 version of ANSI/ASHRAE/IESNA Standard 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings, consume significantly less energy—18.2 percent source and 18.5 percent site—than buildings built to the 2007 version, the U.S. Department of Energy (DOE) issued a ruling making the 2010 version the commercial-building reference standard for state building energy codes....
The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has released updated guidance on building energy audits....
Lennox Industries Inc., the Richardson, Texas-based provider of residential and commercial heating and air-conditioning systems, recently released a list of four tips for improving indoor-air quality (IAQ) in schools:...
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