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
Codes and Standards | May 27, 2015
Construction industry concerns with ‘Waters of the U.S.’ rule remain
EPA and Corps of Engineers rule may lead to a longer, more expensive permitting process
Codes and Standards | May 22, 2015
Rapid growth for environmental insurance in construction industry
The U.S. Environmental Protection Agency is paying closer attention to intrusion of potentially harmful vapors into commercial and residential buildings.
Codes and Standards | May 22, 2015
Roof collapse at Minnesota water park highlights failure to enforce codes
Rural areas say they can’t afford to enforce state-adopted building code.
Codes and Standards | May 22, 2015
U.S. House scuttles EPA plan to expand definition of waters in Clean Water Act
Construction industry officials said the rule would hamper developers, cost jobs.
Codes and Standards | May 22, 2015
First EPD covering PVC water and wastewater piping published
Benchmarks impacts of seven PVC pipe products across their life cycles.
Office Buildings | May 18, 2015
New ASHRAE standard offers test method to determine heat gain of office equipment
The standard will aid engineers in configuring cooling systems in office buildings.
Codes and Standards | May 7, 2015
Widespread damage from Nepal earthquake due to poor implementation of building code
Nepal’s code author says destruction was ‘inevitable.’
Codes and Standards | May 7, 2015
Lavish residential skyscrapers prompt concern over shadows
New York, San Francisco, Washington, D.C., and Boston among cities grappling with height regulations.
Codes and Standards | May 7, 2015
Several states moving to repeal prevailing wage laws
Anti-prevailing wage bills that apply to state-funded construction projects have been passed in West Virginia and Nevada. Similar laws could be passed in Indiana and Illinois.
Codes and Standards | May 7, 2015
New OSHA rule aimed at protecting construction workers in confined spaces
The agency says the rule will protect about 800 workers a year from serious injury.