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Free cooling potential for Brazilian data centers based on approach point methodology.

Potentiel de refroidissement naturel basé sur la méthodologie des points d'approche pour les centres de données brésiliens.

Auteurs : AMADO E. A., SCHNEIDER P. S., BRESOLIN C. S.

Type d'article : Article de la RIF

Résumé

Data centers cooling loads may reach about 40% of their electricity demands. The number of that type of facility is continuously growing around worldwide and actions addressing energy saving are welcome to rationalize their operation. Free cooling appears as an effective solution to achieve energy savings, and the present work proposes a methodology for assessing data center free cooling operation based on the heat exchanger approach point. The methodology can be applied to both airside and waterside economizer modes. The proposed methodology is applied to fourteen Brazilian state capitals that represent all country climatic conditions. Free cooling environmental air temperature and humidity criteria are based on literature review and on ASHRAE thermal guidelines. Results show that cities such as Curitiba, São Paulo, Porto Alegre and Brasília can potentially operate in both airside and waterside economizer modes for more than 3000 h per year, even considering conservative data center thermal operating limits. Facilities placed on North and Northeast regions can only run under free cooling conditions if operational parameters are to be relaxed to consider more flexible operating limits. It is shown that indirect economizers are potentially more suitable to operate under ASHRAE recommended limits. The proposed methodology is shaped for evaluating free cooling hours during system conception.

Documents disponibles

Format PDF

Pages : 171-180

Disponible

  • Prix public

    15 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Free cooling potential for Brazilian data centers based on approach point methodology.
  • Identifiant de la fiche : 30028115
  • Langues : Anglais
  • Sujet : Chiffres, économie, Technologie
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 122
  • Date d'édition : 02/2021
  • DOI : http://dx.doi.org/10.1016/j.ijrefrig.2020.11.010

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