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A Heat Re-Use System for the Cray XE6 and Future Systems at PDC, KTH
KTH, School of Computer Science and Communication (CSC), Centres, Centre for High Performance Computing, PDC.
2012 (English)In: Cray User Group Final Proceedings: Greengineering the Future, Cray User Group , 2012Conference paper, Published paper (Refereed)
Abstract [en]

The installation of a 16 cabinet Cray XE6 in 2010 at PDC was expected to increase the total power consumption from around 800 kW to 1300 kW, an increase of 500 kW. The intention was to refund some of the power cost and become more environmentally friendly by re-using the energy from the Cray to heat nearby buildings. The custom made system, which makes it possible to heat nearby buildings at the campus without using heat-pumps, is described in detail. The principle of the system is that hot air from the Cray is sent through industrial heat exchangers placed above the Cray racks. This makes it possible to heat the water to more than 30 °C. The problems encountered and the experiences gained are described as well as projection for the savings. A method of describing a mix of different cooling requirements shows the way for future improvements and addition of future systems.

Place, publisher, year, edition, pages
Cray User Group , 2012.
Keyword [en]
heat re-use; Cray; cooling; heat exchanger; district cooling; district heating
National Category
Computer Systems
URN: urn:nbn:se:kth:diva-95056OAI: diva2:614224
Cray User Group Meeting 29 April- 3 May 2012,Stuttgart, Germany
Prace - Partnership for Advanced Computing in Europe
EU, FP7, Seventh Framework Programme, PRACE-1IP, RI-261557

QC 20130429

Available from: 2013-04-03 Created: 2012-05-12 Last updated: 2013-04-29Bibliographically approved

Open Access in DiVA

Heat-re-use(828 kB)