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Topic: Cooling 
(remove) Topic: Refrigerative cooling (remove) Market Sector: Government/Institutional (remove) Content type: Research (remove) Service line: Technology Assessment (remove) Results
Water-Cooled Electric Chillers
March 26, 2009 | Updated: May 29, 2012
Although a chiller’s annual energy costs can amount to one-third of its purchase price, choosing one that is most efficient at full or part load might be counterproductive because the ratings don’t measure the efficiency of the overall cooling system.
Content type: Resource Guide | Document ID: CEMC-RG-7 | Author: Peter Criscione, Jarett Zuboy
Finding Chiller Ratings
April 13, 2011
How can I get certified performance data for a specific chiller?
Content type: Ask E Source | Document ID: TAS-AskES-41 | Author: Peter Criscione
New Doors Are Opening for Widespread Economizer Cooling in Data Centers
January 19, 2011
A recent analysis of data center operation by a leading engineer is challenging the widely accepted belief that data centers need tight temperature and humidity control. The study concludes that loosening these controls could translate into as much as a 63 percent savings in cooling energy.
Content type: Research Brief | Document ID: TAS-RB-27 | Author: Peter Criscione
Finding the Efficiency of Old Air-Conditioning Equipment
January 14, 2011
How can I determine the efficiency of old air-conditioning equipment?
Content type: Ask E Source | Document ID: TAS-AskES-36 | Author: Peter Criscione
Beware Dubious Savings Claims for Desiccant Dehumidification Panels
January 12, 2011
Do desiccant dehumidification filters really cut air-conditioning and refrigeration costs? Are the savings claims valid for “drop-in” media that are not continuously regenerated?
Content type: Ask E Source | Document ID: TAS-AskES-27 | Author: Leland Keller
Study Finally Evaluates an Evaporative Precooler Retrofit, with Mixed Results
August 2, 2010
Results are in from the first field testing of retrofits of evaporative precoolers and they are mixed but promising!
Content type: Research Brief | Document ID: TAS-RB-15 | Author: Mary Horsey
Variable Refrigerant Flow Systems
March 26, 2010
Variable refrigerant flow systems promise higher efficiencies and other benefits compared to other heating and cooling solutions. However, the jury is still out as to how well they perform. We discuss both the theoretical and evaluated evidence supporting this up-and-coming technology.
Content type: Resource Guide | Document ID: TAS-RG-19 | Author: Peter Criscione and Joe Shekiro
Air-Source Electric Heat Pumps
December 17, 2009
Air-source electric heat pumps are year-round space-conditioning systems capable of providing heating, cooling, and domestic hot water in a single piece of equipment. They often offer a lower capital cost and lower operating cost than electric resistance heating and, in some cases, gas heating.
Content type: Resource Guide | Document ID: TAS-RG-22 | Author: Peter Criscione
Geothermal Heat Pumps for Commercial Applications
August 24, 2009
Geothermal heat pumps use the relatively constant temperature of the earth to provide efficient heating and cooling. This Resource Guide looks at applications in commercial buildings.
Content type: Resource Guide | Document ID: CEMC-RG-11 | Author: Ira Krepchin
Rooftop Units
March 20, 2008
A single-packaged air-conditioning rooftop unit (RTU) is a type of unitary air conditioner, a category that includes both single-packaged and split systems. RTUs are sometimes referred to as packaged units because they are self-contained.
Content type: Resource Guide | Document ID: TAS-RG-8 | Author: John Sustar and Peter Criscone
