ASHRAE recently released “Liquid Cooling Guidelines for Datacom Equipment Centers,” second edition, a guide for implementing liquid cooling systems in data centers. The guide provides guidelines on interface requirements between chilled-water systems and technology cooling systems and on the requirements of liquid-cooled systems that attach to a datacom electronics rack.
Data center rack heat loads are steadily climbing, creating a need for liquid cooling solutions to reduce the volume of airflow needed, ASHRAE says. “There is an increasing interest in liquid-cooled IT equipment at the rack, equipment and component levels,” says Don Beaty, publication chair of Technical Committee 9.9., Mission Critical Facilities, Data Centers, Technology Spaces and Electronic Equipment. “There is also increased interest in reuse of the heat rejected from IT equipment. One of the more important changes to the second edition is the addition of supply water temperature classification.”
The addition of liquid classes can have a similar effect on the industry as the creation of supply air temperature classes did—which was the critical enabler to the use of economizers in data centers, Beaty says. “There are five water temperature classes with the highest temperature class being >45 C (113 F), which opens up possibilities for using the rejected heat for building heating systems,” he said.
Related Stories
| Sep 29, 2014
Navy to begin BIM phased implementation in October
The U.S. Naval Facilities Engineering Command will begin its Building Information Management and Modeling (BIM) Phased Implementation Plan in October.
| Sep 18, 2014
GBCI to administer PEER certification for power grids and building projects
The Green Building Certification Institute (GBCI) will administer certification for the Performance Excellence in Electricity Renewal (PEER) program.
| Sep 18, 2014
Master Painter Institute approves 55 new paint products
The Master Painter Institute has issued approvals for 55 new paint products.
| Sep 18, 2014
OSHA announces new requirements for reporting deaths and severe injuries
The U.S. Department of Labor's Occupational Safety and Health Administration announced a final rule requiring employers to notify OSHA when an employee is killed on the job or suffers a work-related hospitalization, amputation, or loss of an eye.
| Sep 18, 2014
Eugene, Ore., passes ordinance to achieve steep energy consumption reductions
The Eugene, Ore., City Council recently passed an ordinance aimed at steeply reducing energy consumption and greenhouse gas emissions.
| Sep 10, 2014
Nine out of 10 New York City building plans fail energy code test
Earlier this year, New York City's Department of Buildings began auditing thousands of architectural plans for new and renovated office and residential buildings.
| Sep 10, 2014
AIA, CSI, and NIBS publish updated national CAD standard, includes new BIM module
The NCS helps architects, constructors and operators coordinate efforts by classifying electronic design data consistently and making information retrieval easier, the industry groups say.
| Sep 10, 2014
Perry named new director of OSHA’s Standards and Guidance Directorate
Bill Perry has been named new director of the OSHA’s Directorate of Standards and Guidance, effective Aug. 24, 2014.
| Sep 10, 2014
ASHRAE proposes verification for energy standard
The ASHRAE/IES energy standard would have multiple compliance options to ensure verification of delivered building envelope performance under a new proposal.
| Sep 2, 2014
Micro-apartment concept can’t get traction in Boston suburb
Micro-apartments are gaining acceptance in nearby Boston and in places such as San Francisco and New York, but Weymouth, Mass., officials and neighbors were not receptive to a proposal for tiny dwellings this summer.
