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 | Jul 19, 2021
Lack of information on carbon emissions challenges construction industry
Reports recommends whole-life carbon assessments on building projects.
Codes and Standards | Jul 19, 2021
Florida condo collapse spurs increased scrutiny on inspections, regulations
Insurers demand proof of current inspections.
Codes and Standards | Jul 15, 2021
Three drywall code-referenced publications have been updated
Include guidance on fire resistance, sound control, application, and finishing.
Codes and Standards | Jul 14, 2021
Biden’s infrastructure proposal includes massive investment in school buildings
‘Once in a lifetime opportunity’ to upgrade HVAC and other key systems.
Codes and Standards | Jul 13, 2021
Reluctance to fund maintenance on older condos is a serious problem
Owner associations defer needed work, putting properties at risk.
Codes and Standards | Jul 12, 2021
Regulations on hydrofluorocarbons reduce roof insulation options
Canada, some U.S. states ban HFC blowing agents used in closed-cell foam.
Codes and Standards | Jul 8, 2021
New York City shuts down 322 construction sites for unsafe conditions
Action comes as inspectors visit more than 2,100 sites.
Codes and Standards | Jul 7, 2021
Bechtel, Nautilus partner on sustainable, high-performance data centers
Facilities would use 70% less power for cooling, eliminate consumption of drinking water.
Codes and Standards | Jul 7, 2021
Surfside condo collapse could spur new legislation
Natl. Institute of Standards and Technology is investigating.
Codes and Standards | Jul 7, 2021
Intl. Code Council appoints committees to lead energy code development
One-third of appointees are government regulators.