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 25, 2017
Geotechnical solutions prevent building distress due to expansive clay soils
The condition is the most common geologic hazard in the U.S.
Codes and Standards | Jul 24, 2017
Non-union labor gaining ground in New York City
President of contractors’ group says competitive pricing is spurring more open shops.
Codes and Standards | Jul 20, 2017
New tallest tower west of the Mississippi built to stringent seismic standards
L.A.’s new 1,100-foot skyscraper dominates city’s skyline.
Codes and Standards | Jul 20, 2017
Chicago rises to the top of U.S. cities in percentage of LEED or Energy Star office buildings
Certified office buildings reach 66% in windy city.
Codes and Standards | Jul 19, 2017
Economic impacts of climate change will jump over next two decades
Average annual cost to buildings and infrastructure from eastern storms to rise by $7.3 billion.
Codes and Standards | Jul 18, 2017
Energy modeling yields accuracy within 4%, says new study
Results of the study support the usefulness of the practice.
Codes and Standards | Jul 13, 2017
Net Zero Energy rebranded as ‘Zero Energy’
ILF aims to make new certification the sole standard for highest performing buildings.
Codes and Standards | Jul 13, 2017
New York City creates $10 million fund to help women- and minority-owned firms win construction contracts
The money is earmarked for up to $500,000 surety bonds per contract.
Codes and Standards | Jul 12, 2017
New International Building Code allows weather-resistive barriers above 40 feet
Danger of propagating flames now deemed negligible.
Codes and Standards | Jul 10, 2017
New mass plywood panel project moves ahead with federal grant
New material is substitute for concrete and steel in multi-story projects.