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Energy Newsbriefs Blog

This current awareness service is prepared by the WSU Energy Program Library with funding from the U.S. Department of Energy State Energy Program. This information is provided for energy professionals and interested members of the public to highlight recent energy-related news, articles, and reports that discuss energy efficiency, energy conservation, and renewable sources of energy in engineering and policy circles.

 

Category: HVAC/R

HVAC/R


Gender and Thermal Comfort

Heating, Piping, Air Conditioning, Feb. 2015, by Lawrence Clark.
http://hpac.com/blog/gender-and-thermal-comfort

"The lesson here is for designers to right-size HVAC systems. And because we cannot design different systems based on gender, maybe managers should be more sensitive to and flexible in personnel placement."

ASHRAE, IAQA Approve Consolidation

ASHRAE News, Feb. 5, 2015.
https://www.ashrae.org/news/2015/ashrae-iaqa-approve-consolidation

"A consolidation between ASHRAE and the Indoor Air Quality Association has been finalized by both organizations. The consolidation was approved by the Boards of Directors for ASHRAE and IAQA at ASHRAE’s recent 2015 Winter Conference in Chicago."

Proposed Energy Conservation Standard for Hearth Products

U.S. Dept. of  Energy, Jan. 28, 2015.
http://energy.gov/eere/buildings/downloads/2015-01-28-issuance-energy-conservation-standard-hearth-products-nopr

"This document is a pre-publication Federal Register notice of proposed rulemaking [NOPR] and public meeting regarding energy conservation standards for hearth products, as issued by the Deputy Assistant Secretary for Energy Efficiency on January 28, 2015."

Variables for Retrofitting with VRF

Buildings, Jan. 2015, by Chris Olson.
http://www.buildings.com/article-details/articleid/18387/title/variables-for-retrofitting-with-vrf.aspx

"If you’re considering a major retrofit of an existing HVAC system, take these three steps to do your due diligence for a possible VRF [variable refrigerant flow] solution, says Anne Wagner, energy efficiency engineer at the Pacific Northwest National Laboratory (PNNL)." Also, gives a 15-year lifecycle cost analysis comparison between VAV and VRF retrofit alternatives.

5 Ways to Maximize Your Economizer Efficiency

Buildings, Jan. 2015, by Jennie Morton.
http://www.buildings.com/article-details/articleid/18381/title/5-ways-to-maximize-your-economizer-efficiency.aspx

"Is your air conditioning bill running wild? Get your utility costs under control by adding an air-side economizer. This device draws in outside air as a form of free cooling. While the potential for savings is significant, facility managers can lose all of an economizer’s benefits if they fail to specify the right features and neglect maintenance. Follow these tips to lock in your economizer’s potential."

Question Everything When Replacing Commercial Boilers

Engineered Systems, Jan. 2015, by Ray Wohlfarth.
http://www.esmagazine.com/articles/96929-question-everything-when-replacing-commercial-boilers

"Although the majority of the boilers have been installed properly, there have been many that were not. Those boilers that were not installed correctly would have been very costly to fix had we not seen the issues prior to installing the new ones. Any issues with the heating system become your issues once the new boiler is installed."

Doubling Energy Productivity by 2030

Engineered Systems, Jan. 2015, by John Galyen.
http://www.esmagazine.com/articles/96921-doubling-energy-productivity-by-2030

"While energy efficiency remains at the forefront of trends impacting the HVACR industry, it’s not only efficiency that the industry — and country — needs to be thinking about. We also need to address energy productivity: increasing GDP while reducing energy use."

Demand-Controlled Ventilation

Engineered Systems, Jan. 2015, by Paul Ehrlich.
http://www.esmagazine.com/articles/96931-demand-controlled-ventilation

"The right design strategy can lead to safe, more efficient environments."

Will Liquid Cooling Solutions Save Energy? [Data Centers]

Engineered Systems, Jan. 2015, by Terry Rodgers and Vali Sorell.
http://www.esmagazine.com/articles/96928-will-liquid-cooling-solutions-save-energy

"Many of the liquid cooling solutions hitting today’s market still require air-to-liquid heat exchangers that provide air cooling at the individual rack where the electronic equipment is housed. The IT hardware chassis include integral fans to move the cool air through the inside of the hardware chassis to move the heat from the electronics to the air within the cabinet (or rack). Technically, this is still air cooled hardware. We have reduced the range of cooling technologies available to five distinct scenarios, and then added three additional scenarios that are becoming available (though not widespread) at this time. These scenarios will each be analyzed individually to quantify what energy efficiencies (or inefficiencies) are inherent for each."

Radiant HVAC: The How, Where & Why

Engineered Systems, Dec. 2014, by Steven G. Liescheidt.
http://www.esmagazine.com/articles/96889-radiant-hvac-the-how-where-why

"Does an old-school concept deserve consideration for a wider range of projects these days? After a refresher on the basics, warm up to a variety of current tips and advantages for maintenance, controls, and installation."

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The Energy Newsbriefs Blog is a continuation of the weekly Energy Newsbriefs. Please bookmark this site and return frequently. Although we will not be accepting comments from within the Blog, we would be happy to hear from you by email at library@energy.wsu.edu