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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: Data Centers

Data Centers


ASHRAE Standard 90.4: First Look at Energy Standard for Data Centers

ASHRAE Journal, Oct. 2016, by Ron Jarnagin.
http://tinyurl.com/h9om44n

"Standard 90.4 is a code-intended energy standard designed to work in concert with Standard 90.1. In developing Standard 90.4, the basic structure matched that of Standard 90.1, which enables Standard 90.4 to simply refer to Standard 90.1 for requirements such as envelope, lighting and service water heating, which are within the scope of Standard 90.4 but are already well-covered by Standard 90.1. Standard 90.4 also references Standard 90.1 for mechanical equipment efficiencies, some of which are linked to U.S. Department of Energy legislation. So, if you are building or expanding a data center, you need to use both standards."

Designing With Liquid-Immersion Cooling Systems

Consulting-Specifying Engineer, Sept. 21, 2016, by Saahil Tumber.
http://www.csemag.com/single-article/designing-with-liquid-immersion-cooling-systems/50ef4dcd4e7dee72b8d45e1fa4608abb.html

"Liquid cooling refers to a scenario where liquid (or coolant) must be supplied to the ITE. An IT cabinet is considered to be liquid-cooled if liquid, such as water, dielectric fluid, mineral oil, or refrigerant, is circulated to and from the cabinet or cabinet-mounted equipment for cooling. Several configurations are possible, depending on the boundary being considered (i.e., external or internal to the cabinet). For the same heat-transfer rate, the flow rate requirement for a liquid and the energy consumed by the pump are typically much lower than the flow rate requirement for air and the energy consumed by the fan system. This is primarily because the specific volume of a liquid is significantly lower than that of air."

Google Cuts Its Giant Electricity Bill With DeepMind-Powered AI

Bloomberg, Jul 19, 2016, by Jack Clark.
http://www.bloomberg.com/news/articles/2016-07-19/google-cuts-its-giant-electricity-bill-with-deepmind-powered-ai

"The internet giant is using technology from the DeepMind artificial intelligence subsidiary for big savings on the power consumed by its data centers, according to DeepMind Co-Founder Demis Hassabis."

Data Centers and Ab/Adsorption Chillers

Engineered Systems, Apr. 2016, by Marcia Karr.
http://www.esmagazine.com/articles/97665-data-centers-abadsorption-chillers

"A few circumstances in a data center make it ripe for a CHP design to boost efficiency. Let’s get into the options within both relevant chiller types, why payback may be shorter than expected, and the assorted potential benefits from lower costs to higher reliability. Some tips from an array of manufacturers’ reps round out this useful investigation."

Absorption Chillers For Institutional Occupancies

Engineered Systems, Feb. 2016, by Marcia Karr.
http://www.esmagazine.com/articles/97567-absorption-chillers-for-institutional-occpancies

"It's not necessarily a plug-and-play situation, but these chillers can play key roles and deliver meaningful savings in several scenarios. Waste heat, CCHP, standalone, and even renewable solar as part of the refrigeration cycle can all provide the setting for absorption success."

The Internet Shouldn’t Run on Dirty Energy

Harvard Business Review, Dec. 16, 2015, by Nate Springer and Kelly Gallo.
https://hbr.org/2015/12/the-internet-shouldnt-run-on-dirty-energy

"The internet may seem to exist in the ether, but its plumbing includes a vast network of data centers, also known as server farms, which need power to function. In 2010, data centers represented 2% of all electricity use in the United States. Globally, it equates to 2% of all annual emissions linked to climate change. While that amount may not sound like much, it is almost equivalent to the impact of shipping all goods around the world each year. If the world is to become ever more efficient and reach global climate goals, internet power will need to play its part."

12 Ways to Save Energy in Data Centers

Building Operating Management, Nov. 2015, by Steve Ryan and Robert Huang. [Scroll to page 48 of the journal, or page 53 of the PDF.)
http://www.facilitiesnet.com/bom/graphics/15/11/bo1115.pdf

"These proven strategies offer best practices that can be applied in many data centers."

Unpacking Data Center Loads

ASHRAE Journal, Oct. 2015, by Donald L. Beaty and David Quirk.
http://tinyurl.com/pa73xdb

"This column provides both data center novices and experts some sense for the impact hardware and software has on data center design. And, it highlights the importance of software's current and future full load profile in a data center."

Driving Data Center PUE, Efficiency

Pure Power (supplement to Consulting-Specifying Engineer), Summer 2015, by Bill Kosik.
http://www.csemag.com/single-article/driving-data-center-pue-efficiency/4bba5f95667a596a898be854d101e01e.html

"For the last decade, power usage effectiveness (PUE) has been the primary metric in judging how efficiently energy is used in powering a data center. PUE is a simple energy-use ratio where the total energy of the data center facility is the numerator, and the energy use of the information technology (IT) systems is the denominator."

Over 50% Energy Savings Realized for Naval Air Station Facility on Whidbey Island

Northwest Energy Efficiency Council (NEEC) News, May 26, 2015.
http://www.neec.net/news/over-50-energy-savings-realized-naval-air-station-facility-whidbey-island

"The Naval Air Station (NAS) on Whidbey Island believes that national defense and environmental protection must be compatible goals. Their recent effort to develop and execute a targeted plan for upgrading the chilled water system serving their critical Naval Facilities Engineering Command (NAVFAC) facility is another great example of the commitment the NAS has for environmental stewardship and continual improvement."
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