Data Centre Magazine October, Issue 55 | Page 26

THE DATA CENTRE INTERVIEW
Cooling density, noise and heat recovery The same changes apply to the physical footprint of a facility and the noise it produces, with Katie pointing to Johnson Controls’ s YORK chiller range.
“ It’ s not just about energy and water,” she explains.“ Communities also care about space and noise, and here, too, the story is changing.
“ As compute density increases, cooling density is increasing alongside it, allowing us to support more computing power with substantially less equipment and allowing some thermal architectures to operate with up to
60 % fewer dry coolers, reducing equipment and supporting infrastructure requirements. The same design flexibility in this economised centrifugal chiller technology, the YORK YKHT, can be used to lower fan speeds and reduce on-site noise by as much as 20 dBA, often perceived as roughly 75 % quieter and taking noise to the level of household appliances like a dishwasher.
“ The Johnson Controls YORK YVAM air-cooled magnetic bearing centrifugal chiller further supports quiet operation, producing noise levels comparable to a normal conversation at a distance of 10 metres, helping enable deployment